How Do Stablecoins Make Money? (And What It Means for Investors)
TLDR: Stablecoins are digital tokens pegged to real-world currencies, most commonly the US dollar, and the companies that issue them generate profit by investing the reserves backing each token. The issuer collects interest on those reserves and keeps it, because token holders receive nothing. That gap between what the issuer earns and what it pays out is the entire business. And right now, it is generating billions of dollars per year.
How do stablecoins work?
A stablecoin is a blockchain-based token that is redeemable at a fixed rate, typically $1 per token, backed by an equivalent amount of real assets held in reserve. Think of it as a digital bearer certificate: one token equals one dollar, and a custodian holds that dollar on your behalf.
When a user deposits cash with a stablecoin issuer, the issuer mints the same number of tokens on-chain and sends them to the user’s wallet. Those tokens can be transferred instantly, traded on any compatible exchange, or used in decentralized applications across supported blockchains. When the user wants to exit, they redeem the tokens and the issuer burns them, removing them from circulation.y.
Reserve management drives everything
The deposited cash doesn’t sit in a checking account. Issuers invest it in short-duration instruments like US Treasury bills, overnight reverse repurchase agreements, and money market funds. The issuer earns the yield on these instruments. Token holders earn nothing, as we’ve mentioned earlier.
This is not a hidden fee or sleight of hand. It’s disclosed in issuers’ reserve reports. The scale of that interest income, applied across tens or hundreds of billions of dollars in circulation, makes stablecoin issuers some of the most profitable financial firms in the world.
The minting process is simpler than it looks
Here’s how the full cycle works:
- A user deposits fiat with the issuer, either directly or through an authorized exchange.
- The issuer mints an equivalent number of tokens and sends them to the user’s blockchain address.
- Those tokens trade freely across any supported chain: Ethereum, Solana, Tron, and others.
- When the user redeems, the tokens are burned, and the fiat is returned, minus any applicable fees.
The issuer holds the deposited cash for the entire life of those tokens. As long as tokens remain in circulation, the issuer earns interest on the reserves. More tokens in circulation means more assets under management and more income.
How widespread is stablecoin adoption in 2025 and 2026?
Stablecoins processed $1 trillion in monthly transaction volume in November 2024 alone, with cumulative on-chain volume surpassing $18 trillion by then. Total stablecoin supply crossed $230 billion by mid-2025. This is not speculative activity by retail traders. Much of that volume is cross-border payments, DeFi settlement, and institutional liquidity management.
The three forces behind the growth are crypto trading, global dollar demand, and regulatory clarity. In countries with volatile currencies, USDT functions as a portable digital dollar for anyone with a smartphone, no US bank account required.
Regulatory clarity changed the game
The biggest catalyst for 2025 and beyond was the passage of the GENIUS Act, which President Trump signed into law in 2025. The GENIUS Act established the first federal framework for payment stablecoins in the United States, defining reserve requirements, redemption rights, and oversight standards for issuers.
The practical effect: institutional players who previously sat on the sidelines due to regulatory uncertainty moved quickly. Visa, Deutsche Börse Group, JPMorgan, and Itaú Unibanco all announced USDC integrations or expanded stablecoin partnerships in 2025. Circle reported 29 enrolled financial institutions on its Circle Payments Network by Q4 2025, with over 500 more in various stages of onboarding.
Institutional adoption is no longer a prediction
Stablecoins now handle more than 60% of all on-chain transaction volume. USDT commands roughly 65.6% of total stablecoin supply. USDC holds about 26.3%. The remaining stablecoins, including PayPal’s PYUSD at a $3.1 billion market cap and Ripple’s RLUSD at $1 billion, have collectively struggled to gain meaningful share against the two dominant issuers.
This market concentration matters for investors. The reserve model rewards scale. The larger your circulating supply, the more assets you manage and the more interest you earn. Both Tether and Circle have a significant competitive moat, which is why understanding how stablecoins make money reveals much about the long-term value of their equity.
How does Tether make money from USDT?
Tether makes money from USDT by deploying user deposits into US Treasuries and similar instruments, earning the full yield while paying nothing to token holders. Tether operates like any central bank or money market fund but with a fraction of the headcount.
By December 31, 2025, Tether held over $141 billion in direct and indirect US Treasury exposure, making it one of the largest holders of US government debt globally. Total assets in reserve reached $193 billion, backing over $186 billion in USDT in circulation, leaving a $6.3 billion excess reserve buffer.
How does USDT make money year after year?
In 2024, Tether generated $13 billion in profit: $7 billion from Treasury holdings and repo agreements, $5 billion from appreciation of Bitcoin and gold holdings, and $1 billion from other investments. In 2025, Tether posted $10 billion in net profit while issuing nearly $50 billion in new USDT, its second-largest annual issuance.
For context, Goldman Sachs reported $14.3 billion in net income in 2024 with tens of thousands of employees. Tether operates with roughly 100. That profit-per-employee ratio is hard to find elsewhere in financial services.
Treasury holdings are the core engine
Tether’s reserve portfolio is primarily conservative. The bulk is in US Treasury bills and overnight reverse repurchase agreements, instruments that are highly liquid and carry minimal credit risk. But Tether also holds:
- Approximately 84,000 BTC (as of year-end 2024, later expanded)
- Gold holdings, with 27 metric tons added in Q4 2025 alone
- Proprietary investments in AI, renewable energy, telecommunications, and agriculture
One important distinction is that those proprietary investments are funded from excess capital and profits. They are fully segregated from the reserves backing USDT. Token holders are not exposed to Tether’s venture bets. This segregation lets Tether maintain its reserve buffer while building an investment portfolio exceeding $20 billion.
How does Circle make money from USDC?
Circle makes money from USDC by investing the dollar reserves backing each token in short-term US Treasuries and collecting the interest income. Reserve income represented 98% of Circle’s $2.7B total revenue in 2025. But that headline number hides two things: where the money actually lives and how much Circle keeps.
The Circle Reserve Fund is where the money lives
Every dollar deposited to mint USDC lands in the Circle Reserve Fund (USDXX), an SEC-registered government money market fund run by BlackRock on Circle’s behalf. The portfolio is almost entirely in short-dated US Treasuries and overnight repo agreements, chosen because they can be unwound quickly to cover any redemptions without a fire sale. Think of it as a giant money market account where Circle earns the interest, and you hold a digital receipt.
That design isn’t just about safety. It lets Circle keep billions deployed in yield-generating instruments without facing a liquidity crunch if redemptions spike. The GENIUS Act of 2025 tightened reserve management requirements, but Circle’s structure already met those standards before the law passed.
The Coinbase relationship is the most important cost
How does USDC make money for Circle after distribution? That’s the more complicated question. Circle and Coinbase have a revenue-sharing agreement tied to their joint history of developing USDC. Under that arrangement, Coinbase earns 100% of reserve income on USDC held in Coinbase products, plus 50% of the residual interest income on USDC held elsewhere that Coinbase helps distribute.
In 2024, Coinbase captured roughly 56% of Circle's gross USDC reserve revenue, and that cost line kept growing. By full-year 2025, Circle generated $2.7 billion in total revenue but posted a net loss of $70 million, partly because distribution costs scaled alongside USDC circulation. Strip out the $424 million one-time stock-based compensation charge tied to the IPO, though, and the underlying business produced $582 million in adjusted EBITDA, up 104% year-over-year.
How does Circle make money from USDC at the operating level? It earns the spread between the yield on its reserve portfolio and what it pays Coinbase. The spread is real and growing, but meaningfully smaller than the headline number suggests.
Circle charges fees on top of reserve income
Reserve interest is not Circle’s only income. Institutional clients using Circle Mint pay tiered fees for high-velocity liquidity. Redemptions settling faster than standard windows and clearing over $2 million in a day attract fees between 0.03% and 0.1%. These small per-transaction fees deliver a stable income stream at institutional scale that doesn’t move with the Fed.
Circle Payments Network charges transaction fees as financial institutions settle cross-border payments through USDC rails. This is Circle’s version of Visa’s toll model, but the underlying rails are public blockchains.
Circle’s SaaS business is its fastest-growing segment
Here is how Circle’s revenue is structured looking into 2026:
The SaaS and API segment uses two billing models: fixed monthly subscriptions for platform access and variable charges tied to usage volume. Businesses building on Circle’s infrastructure get tools for automated bulk payouts, programmable smart contract triggers, and cross-chain USDC transfers. The more transactions they run, the more Circle earns, regardless of Fed rates.
Then there’s Arc. Circle’s Layer-1 blockchain generates network fees and charges institutions for compliance and identity services called Circle ID, which businesses building tokenized real-world assets need to meet regulatory requirements. More than 100 companies joined the Arc public testnet in October 2025. USYC, Circle’s tokenized money market fund, crossed $1 billion in assets under management by November 2025 and adds subscription revenue.
The long-term answer to how Circle makes money from USDC is this: reserve yield funds operations today, but the SaaS stack and Arc ecosystem offer a more interesting margin story as interest rates decline.
How can you invest in Tether and Circle?
Now that you understand how profitable Tether and Circle are, you may want to invest in them. How? The answer differs dramatically depending on which company you’re targeting.
Circle is accessible to any investor
Circle debuted on the New York Stock Exchange on June 5, 2025, under the ticker CRCL, priced at $31 per share and raising $1.05 billion in its IPO. Shares opened at $69 and peaked at $103.75 on the first day, giving Circle a market cap over $16 billion at closing. Any investor with a standard brokerage account can buy CRCL directly on the NYSE.
For institutional investors managing large positions, secondary market transactions to buy Circle stock OTC can offer more discreet execution and better pricing for block sizes that would move the public market.
Tether equity requires a private secondary market
Tether has no announced IPO timeline as of April 2026. The company remains privately held under Tether International. To acquire Tether equity, you need access to existing shareholders who want to exit their positions.
The Acquire.Fi OTC and Secondaries Marketplace connects qualified buyers and sellers of private crypto company equity, including Tether pre-IPO shares. Minimum ticket sizes to buy Tether pre-IPO stock start at $5 million. Acquire.Fi handles NDAs, background checks, and introductions. Due diligence and settlement are the buyer’s and seller’s responsibility, but our platform facilitates the match.
Whether you’re looking at Circle’s public shares or Tether’s private equity, both give you direct exposure to the reserve interest income model that makes stablecoin issuers so profitable. The stablecoin market is not slowing down. As payment volumes grow, as more financial institutions integrate USDC and USDT into their infrastructure, and as regulatory clarity extends into new markets, the issuers managing the largest reserve pools will capture the most value.
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