Breaking! Coinbase switches sides to support competitor stablecoin, USDC hegemony about to collapse?

The stablecoin game is starting to flip. The old unwritten rule—issuers collect interest, distributors sit on the sidelines—has been completely torn apart.

Open USD ($OUSD) is no small project. Behind it stand over 140 companies, including Coinbase, Visa, Mastercard, Stripe, BlackRock, and Google. They've cooked up a new model: enterprises mint and redeem for free, then pass the lion's share of reserve yield directly to the platforms that help attract users and build distribution.

This alliance's sharpest blow is aimed at the parent of $USDC—Circle. Without Coinbase's heavy push back in the day, $USDC would never have gotten this far. The Q1 report shows Coinbase holds more than 25% of all circulating $USDC, averaging $19 billion. Its Base chain alone handled 62% of global on-chain stablecoin transactions in a single quarter.

So Coinbase joining the $OUSD alliance isn't just for a photo op. The largest distribution channel has directly fostered a competitor. Circle's stock crashed 16% on the news, and the market did the math instantly.

Why are channels flipping the table? Because stablecoins are no longer just toys for speculative whales. They're now the foundation of global settlement and cross-border payments. Whoever holds the users gets to negotiate a cut. $OUSD eliminates minting and redemption fees entirely, giving all interest back to distributors.

In 2024, Circle paid Coinbase $908 million under their revenue-sharing agreement. In 2025, Coinbase earned $1.35 billion from stablecoins, accounting for 19% of its annual revenue. Now that Coinbase is a founding member of $OUSD, it has an extra bargaining chip. Note the timing—its three-year contract with Circle expires in August 2026.

Tiger Research put it bluntly: by being the core builder of a competing stablecoin while negotiating renewal, Coinbase's bargaining power is maxed out. CEO Brian Armstrong only threw out one line: looking forward to driving stablecoin adoption. But everyone knows that "adoption" means a redivision of the pie.

Of course, Circle isn't backing down. CEO Jeremy Allaire posted a long thread on X to defend the position. Core argument: stablecoins are a winner-take-all network business. He cited Artemis data: in Q1 2026, $USDC's on-chain transaction volume approached $30 trillion, accounting for 80% of dollar-pegged stablecoins on major public chains.

He said: "$USDC is among the top three most liquid digital assets globally, with a steep drop-off after that. $BTC, $USDT, and $USDC have tier-one liquidity; other dollar-pegged stablecoins have only a tenth of that. Moreover, competitors' liquidity is usually concentrated in a single exchange's market-making orders, while $USDC is spread across dozens of use cases. We've been deepening this system for nearly a decade."

Allaire also fired back at $OUSD's "zero-fee" slogan: it sounds great, but actual operation requires a more structured approach. Circle has long used custom contracts to reduce transaction costs for large clients, not a one-size-fits-all fee waiver.

An even sharper challenge: Can a coalition of 140 giants move fast enough in the digital asset industry, which demands speed? Large financial alliances in the past have generally been slow to execute, and the outcome is predictable. Circle itself tried an alliance structure early on, only to find that a lean, independent model was far more efficient.

There's also a financial logic: if all reserve yield is distributed to channels, who pays for compliance licenses? Who funds the risk management team and round-the-clock treasury management? These infrastructure costs don't just appear out of thin air.

Market analysts aren't overly optimistic either. ARK Invest's Lorenzo Valente pointed out that any new stablecoin faces a cold-start problem. Capital markets and exchanges have already optimized trading pairs around $USDT and $USDC. He wrote: "A coalition of hundreds of competing enterprises has no successful precedent in history. Circle and Tether can push whatever they want without consulting anyone; in a coalition, every decision requires coordinating the interests of all parties, and speed simply can't keep up."

Valente also flagged regulatory and antitrust risks: Circle and Tether have spent years obtaining licenses and building relationships worldwide. $OUSD, by instantly assembling top card networks, asset managers, and banks, presents too big a target and is likely to draw antitrust scrutiny.

Worse still, coalition members are also playing their own games. Stripe just acquired Bridge, a stablecoin infrastructure company, and is building its own financial services. Major banks are testing proprietary tokenized deposits. Ripple is also pushing its own stablecoin. These big distributors won't exclusively funnel traffic to $OUSD; once traffic is split, network expansion slows.

Hivemind's Kayla Phillips asked a very practical question: "How do 140 institutions coordinate governance? If not everyone gets equal decision-making power, why would firms outside the core circle stay in the coalition and work?"

At its core, this battle is about the fragmentation of the stablecoin settlement layer. Big enterprises no longer see stablecoins as standalone retail products but as standard backend settlement tools. If Circle wants to defend its share, it must accelerate value-added services like the cross-chain protocol CCTP and embedded institutional wallets, so the software ecosystem offers benefits beyond interest sharing.

Ultimately, stablecoin competition has shifted from tech rivalry to a direct struggle over revenue distribution rights. Channel platforms are uniting to reclaim the interest generated by their user traffic, and the issuer-led model faces its strongest challenge ever.

Will your $USDC become the next has-been phenomenon? The answer to that question may be hidden in that August 2026 contract.

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