USDC now handles 70% of stablecoin volume. Banks are making Circle harder to catch.
Tether still has the giant balance sheet, but USDC is becoming the rail banks actually plug into.
CryptoVibe Desk · stablecoins · usdc · tether
- →USDC handled about 70% of adjusted stablecoin transaction volume in H1 2026, while USDT held about 25%.
- →Standard Chartered and BNY chose USDC services instead of building their own stablecoin rails, which makes the lead stickier.
- →Watch whether another major bank adds USDC minting, redemption, or settlement before year-end 2026.
- stablecoin → A crypto token designed to hold a steady price, usually one dollar.
- adjusted transaction volume → A cleaner volume number that removes bots, exchange shuffling, and other noisy transfers.
- minting and redemption → Minting creates new stablecoins for dollars, while redemption turns stablecoins back into dollars.
USDC handled about 70% of adjusted stablecoin volume in H1 2026. USDT handled about 25%, according to Visa's onchain analytics data cited by CoinDesk. That is not a small market-share wobble. It is the stablecoin settlement map changing in public.
The bigger story is bank behavior. Standard Chartered and BNY recently added USDC services for custody, minting, redemption, settlement, and treasury operations. They did not launch copycat bank coins first. They plugged into Circle's rail, and that's the catch for Tether.
Visa's adjusted volume method strips out bot activity, exchange transfers, and other non-economic blockchain noise. So this is closer to real payment and settlement use than raw chain traffic. Per CoinDesk, adjusted stablecoin volume hit a record $1.79 trillion in June 2026. That was up 63% from May's $1.1 trillion and 125% from roughly $795 billion in June 2025.
The H1 2026 total reached $8.82 trillion, per the same report. That already beats 2024's full-year $5.8 trillion. It is still below 2025's $10.8 trillion record pace, so this is not a straight victory lap. The market is growing, but the winner inside that growth matters more.
If you hold USDT, your bag is tied to a different model. Tether makes huge money on reserves because users accept USDT as the default offshore dollar. Circle is trying to make USDC the bank-friendly default for regulated settlement. Those are not the same moat.
This looks like 1970s money market funds in one narrow way. The product that wins is not always the one with the best headline yield. It is the one institutions can connect to without explaining too much to compliance. USDC is starting to look like that product.
OpenUSD complicates the story, for now. Bankless reported that Circle stock fell 20% after OpenUSD launched with backers including Stripe, Visa, Mastercard, Coinbase, and BlackRock. The outlet called the selloff overdone because OpenUSD still has to build liquidity and trust from scratch.
That is the point. USDC's lead is becoming self-reinforcing. More bank integrations bring more volume. More volume makes the next bank integration easier. Tether's free-money model still prints, but it has no clear answer to banks choosing Circle instead of building alone.
Tether's choice to keep treating reserve income as the whole moat looks weaker now that Standard Chartered and BNY have made USDC the integration path.
Before the end of 2026, watch whether at least one more top-20 global bank adds USDC minting, redemption, or settlement in a public product launch.
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