Stablecoins Are Becoming Interest-Rate Businesses

A stablecoin can be designed to maintain a value of one dollar without paying its holder a cent in interest. Meanwhile, the company issuing that stablecoin may earn substantial revenue from the assets held to back it.

That distinction is becoming increasingly important as stablecoin issuers move closer to traditional financial markets.

On October 6, 2026, First Digital Group, the company behind the FDUSD stablecoin, announced a definitive business combination agreement with Nasdaq-listed CSLM Digital Asset Acquisition Corp III, a special purpose acquisition company trading under the ticker KOYN. The proposed transaction values First Digital at $250 million before the combination and is expected to close in the first half of 2027, subject to approvals and other conditions.

The announcement is significant beyond the potential public listing. It places another stablecoin business model under the scrutiny of capital-market investors, who will have to evaluate not only token adoption and transaction volumes but also interest-rate exposure, reserve management, distribution costs, and the economics of holding customers’ dollars.

First Digital says FDUSD is backed by cash and cash equivalents, including short-term U.S. Treasury securities. The stablecoin itself does not pay interest to holders.

In a September 14 interview subsequently included in an October 7 SEC filing, First Digital founder and CEO Vincent Chok explained that the business receives dollars, issues FDUSD, invests reserves in eligible assets, and retains the interest generated.

The underlying economics are straightforward. The implications are not.

Stablecoin companies are increasingly competing in two markets at once: the market for digital dollars and the market for the income those dollars can generate. As the sector matures, the balance between those businesses may matter as much as blockchain adoption itself.

Key Takeaways

• First Digital has agreed to a proposed $250 million SPAC combination, potentially bringing the company behind FDUSD to Nasdaq in 2027. The transaction has not closed.
• FDUSD does not pay interest or yield simply for being held. First Digital’s reserve investments can generate income for the business without creating an equivalent return for token holders.
• Interest rates affect stablecoin issuer economics. Higher short-term yields can increase reserve income, while lower yields may compress earnings unless circulation, fees, or other revenue sources compensate.
• Circle’s financial disclosures demonstrate this sensitivity. It reported $668 million in reserve income for the second quarter of 2026, despite lower average yields compared with the previous year.
• Reserve income, stablecoin rewards, and third-party yield products are different financial arrangements. They should not be confused when comparing returns, risks, or regulatory treatment.
• The central question is how sustainable stablecoin businesses remain when interest rates, competition, or regulation change.

First Digital’s $250 Million Deal Puts Stablecoin Economics in Focus

First Digital’s October 6 announcement marked a shift from a previously disclosed, nonbinding transaction proposal to a definitive business combination agreement.

Under the agreement, First Digital would become a subsidiary of a newly formed Cayman Islands holding company following a series of corporate restructuring and merger steps. Shares in the resulting company are expected to trade on Nasdaq, provided the transaction satisfies its conditions.

The announced $250 million figure represents First Digital’s pre-money equity valuation. It is not a statement that the company has received $250 million in new cash.

The transaction also has no minimum cash condition, an important feature because the amount of cash ultimately available from a SPAC transaction can depend on shareholder redemptions and other financing arrangements.

First Digital separately disclosed a nonbinding term sheet for a possible $25 million convertible note. That proposed financing should not be treated as secured capital.

The companies expect the combination to close in the first half of 2027. Shareholder approvals, regulatory requirements, SEC registration procedures, Nasdaq listing approval, and other closing conditions still need to be satisfied.

What the announcement reveals about First Digital

According to the company’s transaction announcement:

• FDUSD launched in 2023.
• Its historical circulating supply peaked above $4.4 billion in April 2024.
• The token had generated more than $4 trillion in cumulative trading volume by June 30, 2026.
• First Digital reported approximately $87 million in group revenue for its fiscal year ended June 30, 2025.
• The company is also developing Finance District, a financial infrastructure ecosystem intended to support programmable commerce and AI-assisted transactions.

Those figures describe different aspects of the business.

Cumulative trading volume measures activity over time, not the value of assets currently backing the stablecoin. Historical peak circulation is not current circulation. Group revenue is not interchangeable with profit or reserve interest income.

The distinction matters because all three can appear impressive while providing different information about financial performance.

First Digital also says its Finance District ecosystem includes live products such as an agent wallet and merchant payment tooling. However, the company acknowledged that Finance District did not yet contribute material revenue at the time of the announcement.

That leaves the economics of the established stablecoin and custody businesses particularly relevant to understanding First Digital’s financial position.

How Stablecoin Issuers Make Money From Interest

A conventional fiat-backed payment stablecoin is generally designed to maintain a stable reference value, usually one dollar per token.

The issuer receives eligible fiat funding, creates tokens, and maintains reserve assets intended to support redemption.

For illustration, consider a hypothetical issuer that receives $1 billion and issues one billion dollar-backed tokens.

Instead of keeping the entire reserve balance in a non-interest-bearing account, the issuer might hold an eligible combination of bank cash, short-term Treasury bills, and other permitted liquid instruments.

Those instruments may generate income.

If the reserve portfolio earns an average annualized gross return of 4%, the issuer could generate approximately $40 million in annual reserve income on a constant $1 billion balance.

At 3%, the same balance would generate approximately $30 million.

The difference is $10 million annually before operating costs, distribution expenses, taxes, or other adjustments.

The calculations are illustrative rather than estimates of First Digital’s actual income.

They show why interest rates can become a material driver of profitability even when the stablecoin itself continues to trade near one dollar.

The difference between reserve assets and reserve income

Reserve assets are the financial resources maintained to support outstanding stablecoin obligations.

Reserve income is the interest or other investment income generated by those assets.

The two should not be treated as interchangeable.

An issuer cannot necessarily distribute its reserve principal as profit simply because it controls the accounts holding those assets. That principal supports the issuer’s redemption obligations.

Income generated from eligible reserve investments may form part of the issuer’s business revenue, subject to its contractual arrangements, applicable accounting treatment, reserve requirements, and governing law.

The exact treatment varies across issuers and jurisdictions.

For readers examining how digital dollars operate in practice, our stablecoin risks guide explains why reserve quality, redemption rights, and issuer obligations matter independently of a token’s market price.

Why Treasury bills matter

Short-term U.S. Treasury bills are debt securities issued by the federal government.

They are typically sold at a discount and repay their face value at maturity. The difference represents the investor’s return, assuming the security is held to maturity and the obligation is honored.

Treasury bills can be useful reserve instruments because they are highly liquid and generally have low credit risk compared with many private debt instruments.

However, low credit risk does not mean the absence of every financial risk.

Treasury securities can change in market value before maturity, liquidity conditions can deteriorate during market stress, and custodial or operational problems can still affect an issuer’s ability to redeem tokens promptly.

Short maturities reduce certain forms of interest-rate and liquidity risk, but they do not eliminate them.

The yield on these instruments is closely connected to monetary policy and financial-market expectations.

That creates an important relationship: stablecoin businesses can become exposed to changes in central-bank policy without issuing a token whose price is supposed to fluctuate with interest rates.

First Digital Says It Keeps the Income From FDUSD Reserves

First Digital’s public statements provide a direct example of this model.

The company describes FDUSD as backed by reserves consisting of cash and cash equivalents, including short-dated U.S. Treasury bills and reverse repurchase agreements.

The FDUSD issuing entity is FD121 (BVI) Limited. First Digital Trust Limited, a separate group company, provides reserve custody services.

That corporate distinction is important. The issuing entity, reserve custodian, group holding company, and proposed future listed company do not perform identical legal roles.

During the interview recorded on September 14, 2026, Vincent Chok explained that institutional customers provide dollars for FDUSD issuance, the reserve assets are invested in eligible instruments, and the resulting interest belongs to the business.

He also discussed sharing revenue with certain distribution partners, including market makers and exchanges.

The SEC subsequently published the interview transcript in connection with the proposed transaction.

This provides a clearer description of First Digital’s economics than market capitalization or trading-volume figures alone.

Nevertheless, the company’s approximately $87 million in fiscal 2025 revenue is a group-level number. It should not be presented as $87 million of FDUSD reserve interest without a verified breakdown.

First Digital has other activities, including trust and custody services, and a definitive assessment of its profitability requires more detailed financial disclosures.

A stablecoin can generate income without paying holders

First Digital explicitly states that FDUSD does not pay interest or yield.

A person holding 1,000 FDUSD therefore should not assume that interest earned on the corresponding reserves increases their token balance.

The holder generally has exposure to the stablecoin’s value and to the rights provided by the relevant issuer and service-provider arrangements.

The issuer’s reserve income is a separate matter.

This arrangement explains why payment stablecoins are sometimes described as attractive businesses during periods of relatively high short-term interest rates.

But it also exposes a weakness in simplistic growth narratives.

If interest rates fall while reserve balances remain unchanged, gross reserve income can decline without any decrease in the number of outstanding tokens.

If the issuer must simultaneously spend more on distribution, compliance, or infrastructure, the effect on profitability can be greater.

Circle’s Financial Results Show How Rate Changes Affect Revenue

First Digital is not the only example.

Circle, the publicly traded company behind USDC, provides detailed financial disclosures that illustrate the same fundamental economic relationship.

For the second quarter of 2026, Circle reported:

Financial measure	Q2 2026
USDC in circulation at quarter-end	$73.3 billion
Reserve income	$668 million
Other revenue	$34 million
Total revenue and reserve income	$701 million
Distribution, transaction and other costs	$412 million
Net income from continuing operations	$48 million

Figures are rounded as reported by Circle and may not sum precisely.

Circle’s reserve income increased approximately 5% year over year, largely because average USDC circulation grew.

But that growth was partly offset by lower returns on the reserves.

In its SEC filing, Circle attributed approximately $147.4 million of quarterly reserve-income growth to increased average circulation, while a 66-basis-point decline in average yields reduced the comparison by approximately $113.9 million.

One basis point equals 0.01 percentage points. A 66-basis-point decline equals 0.66 percentage points.

The result demonstrates two competing forces:

More stablecoins in circulation can generate additional reserve income, while lower interest rates reduce the return earned on each dollar of eligible reserves.

Neither factor can be understood independently.

Circle’s filings also reported that reserve income represented more than 95% of its total revenue for the second quarter.

That concentration is particularly relevant to investors evaluating whether future growth can offset lower short-term yields.

Distribution costs complicate the model

The interest earned on reserves is not necessarily retained in full by the issuer.

Large stablecoin businesses may make substantial payments to exchanges, wallet providers, institutional distribution partners, and other businesses that help increase adoption.

Circle’s disclosed distribution expenses provide a concrete example.

The company reported $412 million in distribution, transaction, and other costs for the second quarter of 2026.

These expenses are not all identical, and they should not be interpreted as a single payment category. Nevertheless, they demonstrate that generating gross reserve income and converting it into sustainable earnings are different challenges.

An issuer can increase circulation through generous distribution arrangements while retaining a smaller share of the associated economics.

For stablecoin investors, the more useful question is not simply how large circulation becomes.

It is how much income the issuer retains after acquiring, servicing, and maintaining that circulation.

Why Lower Interest Rates Could Change the Industry

Interest-rate sensitivity creates an unusual tension within stablecoin economics.

Lower interest rates can support broader economic activity, financing, and certain forms of risk-taking. Those conditions might encourage digital-asset adoption or increase demand for payment infrastructure.

At the same time, lower yields can directly reduce the revenue available from short-term reserve investments.

The two effects can move in opposite directions.

An issuer therefore cannot assume that favorable conditions for cryptocurrency markets automatically translate into stronger reserve profitability.

The importance of average circulating supply

A stablecoin issuer’s earning capacity depends substantially on how much eligible reserve capital remains outstanding over time.

A token that circulates continuously for an entire year can support a different revenue profile from one that is minted and redeemed frequently, even if both generate similar trading volumes.

Consider two hypothetical issuers.

Issuer A maintains an average reserve balance of $5 billion at a 3% gross annual yield.

Issuer B maintains $2 billion at a 5% yield.

Issuer A would generate approximately $150 million in gross annual reserve income, compared with $100 million for Issuer B.

Scale can therefore offset differences in interest rates.

However, this also depends on reserve composition, permitted investments, the actual duration of reserve balances, and the costs incurred to support them.

Not every stablecoin company has the same exposure

Some issuers rely heavily on income from reserve investments.

Others may receive meaningful revenue from transaction processing, subscriptions, infrastructure services, custody, issuance or redemption fees, or other permitted business activities.

The revenue mix can differ materially.

For example, a company that develops merchant payment infrastructure might earn fees from facilitating transactions, potentially creating revenue unrelated to the amount of interest generated by its reserves.

That does not automatically make it a stronger business.

Payment processing introduces its own costs, competitive pressures, integration requirements, fraud exposure, and regulatory obligations.

The relevant question is whether these additional services create revenue that remains commercially viable across different interest-rate environments.

This is also why stablecoin infrastructure has become a competitive industry rather than simply a contest over which company can issue the largest number of tokens.

Reserve Yield, Stablecoin Rewards, and Investment Products Are Different

One of the most persistent sources of confusion in stablecoin markets is the use of the word yield.

The term can describe several economically and legally different arrangements.

For a stablecoin issuer, yield may refer to income earned on reserve investments.

For an exchange, yield might describe rewards offered through a separate promotional or account arrangement.

For a DeFi protocol, it may refer to income from lending, liquidity provision, trading strategies, or other financial activities.

For a tokenized money-market product, it may represent investment returns distributed according to the legal structure of the underlying fund.

These distinctions affect who receives income, which institution owes the investor money, and what risks the investor accepts.

Five Different Meanings of Stablecoin Yield

Arrangement	Who Receives the Return?	Important Distinction
Stablecoin reserve income	Issuer or another contractually entitled party	Revenue generated by reserve assets; not automatically payable to token holders.
Payment stablecoin holding	Usually no return solely for holding a non-yielding payment token	Focus on redemption rights, reserve backing, and issuer risk.
Exchange or platform rewards	Eligible users under the platform’s terms	Separate contractual, counterparty, and regulatory risks may apply.
DeFi lending or yield strategy	Participants supplying capital or liquidity	Smart-contract, liquidity, market, and strategy risks.
Tokenized Treasury or money-market product	Eligible investors under the product structure	Investment rights, redemption conditions, fees, and securities rules.

The practical lesson is that holding a stablecoin and investing that stablecoin are separate decisions.

A payment stablecoin can be backed by Treasury bills without giving holders an ownership interest in those bills.

Similarly, a third-party service can accept stablecoins and offer an investment return without changing the economic rights attached to the original stablecoin.

First Digital’s Quantus integration demonstrates the distinction

In February 2026, First Digital announced an integration with Quantus.fi intended to make FDUSD available within an institutional yield platform.

The arrangement involves an external strategy framework through which eligible users may deploy capital.

It does not mean FDUSD itself began paying interest simply for being held.

First Digital described the integration as a way to support institutional yield opportunities, while the platform described its strategies as market-neutral and focused on preserving principal.

Those descriptions are company claims, not guarantees against losses.

A holder considering such a strategy would need to evaluate the platform, counterparties, strategy mechanics, withdrawal restrictions, and relevant contractual protections separately from FDUSD’s reserve backing.

A stablecoin can remain fully backed at the issuer level while a person who deploys it into an external strategy takes additional risks.

For more background on regulatory distinctions involving interest and rewards, see our earlier examination of the stablecoin rewards regulation debate.

The GENIUS Act Makes the Interest Question More Complicated

The United States has moved toward a dedicated federal regulatory framework for payment stablecoins.

The GENIUS Act was signed into law on July 18, 2025.

The legislation establishes requirements relating to permitted issuers, reserve assets, redemption, regulatory oversight, and other matters.

A particularly important provision prohibits permitted payment stablecoin issuers and covered foreign issuers from paying holders interest or yield solely in connection with holding, using, or retaining a payment stablecoin.

The prohibition addresses what issuers pay to holders.

It is not a blanket prohibition on issuers earning income from permitted reserve investments.

That is a fundamental distinction.

A company may be able to earn investment income on compliant reserve assets while being restricted from distributing that income to token holders as interest.

The Act also includes reserve and disclosure obligations. Its broader framework is relevant to how payment stablecoins are distinguished from investment products and bank deposits.

Enacted law does not mean every provision is already operational

As of October 2026, implementing rules were still being developed.

The GENIUS Act establishes an effective date of the earlier of January 18, 2027, or 120 days after the relevant federal regulators issue final implementing regulations.

Certain provisions also have their own transition periods.

In February 2026, the Office of the Comptroller of the Currency proposed regulations implementing major portions of the framework.

In September 2026, the Federal Reserve published additional proposed rules addressing stablecoin issuers under its jurisdiction.

The regulatory proposals explored arrangements in which an issuer might attempt to route payments through affiliates or related third parties.

The proposals contemplated a rebuttable presumption for certain indirect yield arrangements, subject to the terms of the proposed rules.

These were regulatory proposals, not final determinations that every third-party rewards program is prohibited.

A third party independently paying a reward, an issuer financing payments through an affiliate, and an investor earning returns from a separate financial strategy are not automatically the same legal arrangement.

The legal treatment depends on the transaction structure, the parties involved, and the applicable rules.

Our GENIUS Act stablecoin rules coverage provides additional context on how the U.S. framework changes issuer responsibilities.

Does U.S. law directly govern FDUSD?

That cannot be assumed simply because FDUSD references the U.S. dollar.

First Digital identifies FD121 (BVI) Limited as the token issuer and states that FDUSD minting and redemption services are not offered to U.S. persons or entities.

The group’s Hong Kong trust-company licensing and Canadian registrations also should not be confused with authorization to issue a regulated payment stablecoin in every jurisdiction.

First Digital has disclosed plans to pursue additional regulatory permissions, but an application or announced intention is not equivalent to approval.

The future applicability of U.S. requirements to foreign issuers and their distribution channels depends on the relevant statutory provisions, implementing regulations, market access, and actual business arrangements.

The fact that First Digital proposes to become publicly listed in the United States also does not, by itself, establish that FDUSD has obtained U.S. stablecoin issuance authorization.

The Hidden Competition for Stablecoin Distribution

Stablecoins can benefit from network effects.

Users often prefer tokens that are accepted across many exchanges, payment platforms, wallets, and financial applications.

Liquidity encourages adoption, while adoption can attract additional liquidity.

That creates incentives for issuers to establish relationships with companies that control access to large user bases.

For an issuer, a successful integration can increase the amount of stablecoins outstanding and, in turn, the eligible reserve assets that potentially generate income.

For the distribution partner, supporting the stablecoin may create commercial opportunities, including transaction activity and negotiated revenue arrangements.

This creates an additional layer of competition.

Issuers are not simply competing on reserve safety, branding, transaction fees, or blockchain support.

They may also compete over how much of their revenue they are willing to share to secure distribution.

Why trading volume is not enough

First Digital reported trillions of dollars in historical cumulative FDUSD trading volume.

That establishes substantial past trading activity, according to the company’s reported figures.

It does not establish that an equivalent amount of customer funds was held in reserve or that First Digital collected a percentage of every secondary-market transaction.

The same token can be exchanged many times.

A stablecoin might trade repeatedly between market participants while the outstanding token supply remains unchanged.

Revenue from reserve investments is therefore better understood through average reserve balances and actual investment returns than through cumulative secondary-market turnover.

For readers interested in how stablecoins are evolving beyond exchanges, our reporting on stablecoins and continuous payment settlement examines another reason payment infrastructure has become a competitive priority.

Why Stablecoin Reserve Safety Still Comes First

The appeal of earning interest does not change the basic responsibility of a fiat-backed payment stablecoin issuer: maintaining sufficient, available assets to support the token’s redemption obligations.

This creates a potential conflict between profitability and conservatism.

Higher-yielding assets often involve additional duration, credit, liquidity, or structural risk.

An issuer seeking more revenue might have an economic incentive to accept additional risk, even where regulation or contractual obligations restrict its available investment choices.

The quality of reserves therefore matters at least as much as the return earned on them.

A Treasury bill is not the same as a stablecoin redemption right

Consider a holder with $10,000 worth of a dollar-backed stablecoin.

The issuer might hold highly rated short-term government securities as part of its reserves.

That does not mean the holder individually owns $10,000 of Treasury bills.

The holder’s legal rights depend on the stablecoin structure, applicable terms, contractual relationships, and relevant law.

There may also be a difference between someone eligible to redeem directly with the issuer and someone who acquired the token through an exchange.

First Digital, for example, describes direct FDUSD services as primarily institutional and subject to onboarding and anti-money-laundering requirements.

Retail holders who cannot redeem directly may rely on secondary-market liquidity or intermediaries when converting tokens into fiat currency.

Even where the issuer aims to maintain one-to-one redemption, that does not ensure every secondary-market trade occurs at exactly one dollar.

Attestations help, but they have limits

First Digital publishes reserve transparency information and says FDUSD reserves are subject to monthly independent attestations.

Such reports can provide useful assurance about specified balances and liabilities at a particular reporting date.

However, the scope of the engagement matters.

An attestation concerning reserve backing at a reporting date should not automatically be described as a full financial-statement audit, a continuous liquidity guarantee, or proof that every operational risk has been eliminated.

The report’s date, accounting criteria, asset classifications, assumptions, and independent practitioner’s conclusion all deserve attention.

For an issuer seeking public-market investment, the distinction between reserve attestations and consolidated audited financial statements is especially important.

The two disclosures address different questions.

What the First Digital Listing Could Change

A completed public listing could subject First Digital to expanded market disclosure and reporting expectations.

Investors would have greater opportunities to examine the company’s consolidated financial performance, business risks, related-party transactions, ownership structure, and management assumptions.

But the precise reporting obligations would depend on the final transaction and the resulting company’s legal and regulatory status.

A public listing does not remove the need to evaluate the underlying stablecoin.

It also would not transform FDUSD holders into shareholders of First Digital.

Investors would need to distinguish three businesses

First Digital’s planned structure combines several economic activities.

Stablecoin issuance: Managing outstanding FDUSD, reserve assets, minting, redemption, and distribution relationships.

Trust and custody services: Providing financial administration and asset custody through relevant group entities.

Programmable financial infrastructure: Developing services such as Finance District, which the company hopes will support new payment and AI-agent use cases.

These activities may reinforce one another commercially, but their financial results should not automatically be combined into one growth narrative.

The first can be highly sensitive to interest rates and reserve balances.

The second depends on demand for custody services, fee structures, and operating costs.

The third depends on whether developers, institutions, merchants, and customers actually adopt its products.

First Digital has presented Finance District as a significant growth opportunity while acknowledging its limited material revenue contribution at the time of the transaction announcement.

That makes future commercial adoption an open question.

The proposed listing may eventually make it easier to assess whether revenue diversification is occurring.

It cannot establish that outcome in advance.

TrendCrypt Research Notes

First Digital’s proposed public listing illustrates a broader development in stablecoins: a product marketed primarily for stable-value payments can support a business whose economics are materially influenced by the interest-rate environment.

The distinction changes how investors should assess the industry.

1. Stablecoin market share is increasingly a claim on potential reserve economics

When an issuer increases circulating supply, it may increase both outstanding redemption obligations and the pool of eligible reserve assets that can generate income.

Those two consequences should always be considered together.

A growing stablecoin business is not acquiring unrestricted capital. It is increasing the scale of a financial arrangement in which assets must remain available to meet corresponding liabilities.

The economic benefit depends on what income the reserve assets generate and how much of that income the company retains.

Our assessment is that average reserve balances, net reserve economics, and distribution costs are more informative measures of an interest-dependent stablecoin business than historical trading volume alone.

2. Higher rates can improve earnings without improving the stablecoin

A payment stablecoin does not automatically become safer, more useful, or more liquid because the issuer earns a higher return on its Treasury holdings.

Issuer profitability and token-holder protection are related but different questions.

Higher retained earnings could, depending on financial policy and available resources, support additional investment in compliance, infrastructure, or resilience.

But stronger revenue does not establish that those investments have occurred, nor does it guarantee that funds will be available to meet losses or redemption demands.

The market should avoid treating interest income as a substitute for evidence of sound reserve management.

3. Distribution partners may capture a meaningful portion of the economics

If an issuer relies on major exchanges or intermediaries for circulation, it may need to surrender part of the financial benefit generated by that circulation.

This creates potential bargaining advantages for distributors with large user bases.

As more companies compete to issue payment stablecoins, market access could become expensive.

A smaller issuer might offer substantial economic incentives to acquire users, reducing the margin available from its reserve portfolio.

An issuer with strong existing distribution could be better positioned to retain revenue.

That possibility should be assessed through actual agreements and financial disclosures rather than assumed from brand recognition.

4. Regulation may encourage separation between money and investment products

U.S. restrictions on issuer-paid stablecoin yield indicate an effort to distinguish payment instruments from investment arrangements.

This could reinforce a two-layer market structure.

The first layer would provide payment stablecoins primarily designed for settlement and redemption.

The second would include financial products in which eligible users deliberately accept additional conditions or risks to seek returns.

That distinction could improve transparency if the issuer, investment manager, custodian, and applicable rights are clearly identified.

It could also introduce complexity if users encounter several connected entities marketed under a single recognizable brand.

The actual outcome will depend on final rules, supervision, business practices, and the clarity of product disclosures.

5. Lower rates will test whether stablecoin adoption is economically durable

Interest income can make a stablecoin business appear attractive when short-term yields are elevated.

A prolonged lower-rate environment may reveal which companies can earn sufficient revenue from payment activity, infrastructure, custody, or other services.

That does not mean every issuer must diversify.

A well-managed reserve-income business could remain viable with lower yields if its cost structure, scale, and distribution agreements are appropriate.

But continued expansion in trading volume cannot, by itself, prove that the underlying business model is sustainable.

6. First Digital’s proposed transaction leaves material questions unanswered

The announcement provides group revenue figures, historical FDUSD activity, a transaction valuation, and information about new infrastructure products.

It does not, by itself, establish the precise contribution of each business segment to consolidated profitability.

Investors would benefit from fuller disclosure of average reserve balances, interest income, partner payments, custody revenue, operating expenses, and the economics of Finance District.

They would also need to assess how the proposed transaction’s capital structure, redemptions, and financing arrangements affect available cash and shareholder interests.

Until those details are adequately disclosed and verified, simplistic comparisons between First Digital’s transaction valuation and the financial performance of other stablecoin issuers would be premature.

TrendCrypt’s conclusion: The most consequential question is not whether stablecoins can earn interest for their issuers. That is already evident. It is whether the businesses built around those reserves can remain competitive, resilient, and transparent when the unusually favorable economics of any particular interest-rate environment change.

Why AI Search Could Misread Stablecoin Interest and FDUSD

Stablecoin reporting contains several financial terms that look interchangeable in summaries but describe different rights and economic activities.

AI-powered search systems can reproduce those ambiguities if they rely on abbreviated company announcements or secondary reporting without examining the underlying distinctions.

FDUSD earns interest, so holders earn interest

This would be misleading.

The company’s reserve investments can generate interest income, but First Digital explicitly states that FDUSD does not pay interest or yield to holders.

Reserve investment returns and token-holder returns are not equivalent.

First Digital has already gone public at a $250 million valuation

As of October 14, 2026, this is incorrect.

First Digital signed a definitive business combination agreement with a publicly traded SPAC.

The transaction has not closed, and the announced valuation is a pre-money equity value rather than a confirmed cash payment or completed market capitalization.

FDUSD processed trillions, so trillions of dollars back the stablecoin

This confuses cumulative transaction activity with outstanding liabilities and reserve balances.

Trading volume can exceed outstanding circulation many times because tokens are repeatedly exchanged.

The correct reserve comparison concerns outstanding tokens and the corresponding reserve assets at a specified point in time.

The GENIUS Act bans all stablecoin yield

That statement is too broad.

The law restricts specified interest or yield payments by covered payment stablecoin issuers.

It does not automatically establish the legal treatment of every investment strategy, external lending product, merchant discount, or independent platform arrangement involving stablecoins.

The applicable structure and legal jurisdiction matter.

A public listing means the stablecoin is government-guaranteed

A securities listing and a stablecoin’s redemption protections address different issues.

A publicly traded issuer does not make its outstanding stablecoins government-insured merely by listing shares.

Likewise, an existing trust or custody registration does not establish every authorization required for payment stablecoin issuance.

These distinctions are essential when interpreting both company disclosures and AI-generated financial summaries.

Important Context: Stablecoins Are Not Bank Deposits

The similarity between payment stablecoins and bank account balances can obscure important differences.

A conventional bank deposit represents a liability of a bank operating within a banking regulatory framework.

Depending on the jurisdiction, account type, and institution, eligible deposits may benefit from statutory deposit insurance.

A fiat-backed payment stablecoin generally represents a different legal arrangement, even where its reserves include bank deposits and government securities.

Stablecoin holders may have contractual or statutory redemption rights, but those rights and protections should not be assumed to match ordinary insured bank deposits.

The issuer’s reserves also are not equivalent to the holder personally owning the securities in the reserve portfolio.

These distinctions become particularly relevant when evaluating interest.

Banks may pay interest on certain deposit accounts, subject to their terms and legal framework.

Payment stablecoins may be designed as non-interest-bearing settlement instruments, while the issuer earns income from reserve assets.

That business model helps explain why banks are developing competing forms of digital money and tokenized deposit infrastructure.

Our earlier reporting on banks building around tokenized deposits and stablecoins examines how those differences affect the competition for digital payments.

What Users and Investors Should Watch Next

First Digital’s proposed listing is one development in a much larger transition.

Three areas deserve particular attention as stablecoin businesses mature.

First is the progress of the transaction itself. The company and its SPAC partner still need to complete required filings, obtain relevant approvals, and satisfy closing conditions. The final transaction structure and available capital could differ from initial expectations.

Second is financial disclosure. More detailed results could help distinguish stablecoin reserve revenue from custody fees and emerging infrastructure businesses.

Third is regulation. Rules concerning permissible reserves, redemption, stablecoin yield, and foreign-issuer access may influence business models and distribution arrangements.

For ordinary stablecoin users, the immediate priorities are more practical: understand who issues the token, what backs it, whether direct redemption is available, and whether any advertised return comes from the issuer or a separate product.

For investors evaluating stablecoin companies, the analysis extends to earnings sensitivity, customer concentration, distribution costs, capital requirements, and revenue diversification.

The same underlying token may be relevant to both groups, but the financial questions are not the same.

Final Thoughts

Stablecoins were initially presented to many users as a practical way to move dollar-denominated value across cryptocurrency markets.

Their commercial significance has expanded considerably.

For some issuers, holding high-quality reserve assets creates an interest-income business. For others, stablecoins also provide the foundation for payment processing, custody, treasury services, and programmable financial infrastructure.

First Digital’s proposed public listing brings these economics into sharper focus.

Its FDUSD stablecoin does not pay interest to holders, yet the assets backing its circulation can generate returns for the business. Circle’s public results demonstrate how strongly similar reserve-income models can respond to changes in interest rates.

The next stage of competition may depend less on how many digital dollars a company can issue at a moment in time and more on how reliably it can serve users, preserve redemption confidence, control costs, and generate sustainable revenue across economic cycles.

A stablecoin can maintain a one-dollar target while the value of the business behind it changes significantly.

Understanding that separation is becoming essential to understanding the stablecoin industry itself.

Frequently Asked Questions

How do stablecoin issuers earn interest?

Fiat-backed stablecoin issuers may invest permitted reserve assets in interest-generating instruments such as short-term U.S. Treasury bills or eligible cash-equivalent investments. Income from those assets may contribute to issuer revenue, subject to applicable rules and contractual arrangements.

Does FDUSD pay interest to holders?

No. First Digital states that FDUSD does not pay interest or yield simply for being held. Yield offered through an external investment platform should be evaluated as a separate arrangement.

Why do Federal Reserve interest rates matter to stablecoin companies?

Federal Reserve policy influences short-term market rates, which affect returns on assets such as Treasury bills. Higher yields can increase reserve income, while lower yields can reduce it. The actual impact also depends on circulation, costs, reserve composition, and existing investments.

Is First Digital publicly listed?

Not as of October 14, 2026. First Digital announced a definitive agreement for a proposed business combination with Nasdaq-listed KOYN. Completion remains subject to approvals and other transaction conditions, with closing expected in the first half of 2027.

Is the $250 million transaction value the same as FDUSD reserves?

No. The $250 million figure is the announced pre-money equity valuation of First Digital in the proposed transaction. FDUSD reserves are assets held to back outstanding stablecoin obligations. These are different financial measures.

Does the GENIUS Act prohibit stablecoin holders from earning every kind of yield?

No. The Act restricts specified payments of interest or yield by covered payment stablecoin issuers. Different third-party investment arrangements require separate legal analysis, and the implementation and applicability of the rules matter.

Is a stablecoin backed by Treasury bills as safe as owning Treasury bills directly?

Not necessarily. A stablecoin holder generally has rights associated with the token and issuer arrangement, rather than direct ownership of specific Treasury securities. Issuer, custody, redemption, operational, and market-access risks remain relevant.

Can stablecoin issuers remain profitable if interest rates fall?

Potentially. Profitability depends on reserve balances, remaining yields, operating expenses, distribution costs, and other revenue streams. Lower rates can reduce gross reserve income, but sufficiently large circulation or other profitable services may offset part of that decline.

What is the difference between a payment stablecoin and a yield-bearing stablecoin?

A payment stablecoin is generally designed for stable-value transfer or redemption. A yield-bearing token or investment product includes a mechanism intended to deliver financial returns to eligible holders or participants. The underlying rights, assets, regulatory treatment, and risks can differ substantially.

What should investors examine in a stablecoin issuer’s financial statements?

Important measures include average circulating supply, reserve income, yield sensitivity, distribution costs, operating expenses, redemption obligations, revenue concentration, custody arrangements, and any material non-reserve business activities. Historical trading volume alone is not enough to assess profitability.