Circle’s stock jumped 35% in a single day this week. They make a digital version of the US dollar called USDC - think of it like a dollar that lives on the internet and can be sent anywhere in the world, instantly. That matters because moving real dollars across borders is still slow and expensive. USDC lets businesses and people skip the banks and settle in seconds.
Every digital dollar is backed by a real one sitting in Circle’s reserves. Circle earns interest on that cash - over $2.5 billion worth last year. As more people used USDC, the pile grew 72% to $75 billion, and the interest income scaled with it. Q4 revenue hit $770 million, smashing estimates.
The bull case is that digital dollars replace outdated payment rails and Circle owns the most trusted version. The bear case? Almost all of Circle’s revenue depends on interest rates staying high, their biggest rival is still 2.4x larger, and there’s no guarantee digital dollars don’t stay a niche crypto tool.
Here's how the community voted
The adoption is real - $75 billion of USDC is in circulation, growing 72% a year. Circle was the first digital dollar company to get full regulatory approval in Europe. Big institutions are choosing USDC because it plays by the rules.
The numbers are explosive - Q4 revenue surged 77% to $770 million, and the company is starting to build revenue streams beyond just earning interest. They’ve also launched a digital euro that’s already the market leader.
Governments are getting on board - The U.S. signed its first law specifically for digital dollars in 2025 (the GENIUS Act), and Circle is best positioned to benefit. This isn’t just crypto anymore. Digital dollars are being used for international payments, business settlements, and everyday transactions.
The business model has one giant weakness - Almost all of Circle’s revenue comes from interest earned on the cash backing USDC. If the Fed cuts rates significantly, Circle’s revenue falls off a cliff. This is a savings account disguised as a tech company.
They’re not even the biggest - A rival called Tether is still 2.4x larger at $184 billion in circulation. And PayPal has launched its own version. Circle is growing fast, but it’s far from dominant in a space that’s getting crowded.
It’s still tied to crypto - When the crypto market crashed in 2023, people cashed out their USDC and circulation dropped from $44 billion to $25 billion in nine months. Circle’s revenue shrank with it. If crypto has another downturn, the same thing could happen again.
The adoption is real - $75 billion of USDC is in circulation, growing 72% a year. Circle was the first digital dollar company to get full regulatory approval in Europe. Big institutions are choosing USDC because it plays by the rules.
The numbers are explosive - Q4 revenue surged 77% to $770 million, and the company is starting to build revenue streams beyond just earning interest. They’ve also launched a digital euro that’s already the market leader.
Governments are getting on board - The U.S. signed its first law specifically for digital dollars in 2025 (the GENIUS Act), and Circle is best positioned to benefit. This isn’t just crypto anymore. Digital dollars are being used for international payments, business settlements, and everyday transactions.
The business model has one giant weakness - Almost all of Circle’s revenue comes from interest earned on the cash backing USDC. If the Fed cuts rates significantly, Circle’s revenue falls off a cliff. This is a savings account disguised as a tech company.
They’re not even the biggest - A rival called Tether is still 2.4x larger at $184 billion in circulation. And PayPal has launched its own version. Circle is growing fast, but it’s far from dominant in a space that’s getting crowded.
It’s still tied to crypto - When the crypto market crashed in 2023, people cashed out their USDC and circulation dropped from $44 billion to $25 billion in nine months. Circle’s revenue shrank with it. If crypto has another downturn, the same thing could happen again.
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Circle is a business that today mostly generates revenue on interest and dividends for funds it holds sourced from buyers of stable coins. This is an enviable position to be in because it's almost like free money it earns because it's trusted and an easy way for holders of other cryptocurrencies to exit existing positions and receive stability similar to the actual USD without having to go off-exchange or convert it for actual cash. (I'm not sure I understand why those are a hinderance though) That said, as interest rates go up, I expect holders will be less inclined to hold a stable coin - why forgo all that interest, what do you actually gain vs. putting the funds in an online savings account, etc.? I believe today there are enough exchanges offering yields high enough that people are being lured into depositing their stable coins. Some places have deceptively high rates that are unlikely to be sustainable. I wish I knew what % of funds are at such risk, but really don't.
If cryptocurrency does so well, and the hinderances to conversion into actual USD remain high, then stable coins have a place and Circle should earn good money. That said, Circle has to pay out distribution costs out of its reserve income to platforms like Coinbase. If Coinbase and others are leveraging their position with clients who trust them, they may be able to promote their own stable coins even if just to extract a greater share of reserve income (interest on USD balances) and limit the economics of any one firm's stablecoins.
I don't think Circle has a free lunch here and I think it will only get more competitive over time. What do I know though, I've never used cryptocurrency.