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Stablecoins are again giving traders a useful market signal. CoinDesk reported that adjusted stablecoin transaction volume reached a record pace in June 2026, with USDC taking roughly 70% of adjusted transaction volume in the first half of the year while USDT held about one quarter. The headline is not simply that stablecoins are larger; it is that settlement preference is becoming more visible.
Why it matters for trading is straightforward. When exchange liquidity, tokenized-asset settlement and institutional treasury flows lean toward one stablecoin, order routing and collateral choice can change. A trader holding USDC may find smoother movement into regulated venues and tokenized products, while a trader using USDT may still benefit from deep offshore spot and perpetual liquidity. Neither rail is automatically safer in every market.
The practical checklist is to watch three things together: the stablecoin used as quote currency on the exchange, redemption transparency around the issuer, and chain-level congestion or bridge risk. A cheap swap from USDT to USDC, or from USDC to USDT, can become expensive if it is done during stress, over a slow chain, or through a shallow pair.
For active traders, the stablecoin split is now a liquidity dashboard. If USDC volume keeps leading while tokenized treasuries and bank pilots expand, it supports the institutional-settlement narrative. If USDT liquidity stays dominant in high-beta offshore markets, it can still drive altcoin and perpetual execution during volatile sessions.
Sources: CoinDesk stablecoin volume report; CoinDesk Data Stablecoins and Tokenized Assets report hub.
Risk notice: stablecoins carry issuer, reserve, redemption, exchange, smart-contract and chain-transfer risks. This article is market education, not investment advice.
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