Stablecoins are moving more money while crypto’s cash pile gets smaller

Here is the latest from the digital-asset markets: Adjusted stablecoin transaction volume reached a record $1. 79 trillion in June, according to Visa Onchain Analytics, up 63% from May's $1. 10 trillion and 125% higher than a year earlier.

Across the same four weeks, the total pool of stablecoins in circulation shrank by $7. 7 billion, the largest monthly dollar decline since the TerraUSD collapse in May 2022. The market has been treating that record volume as confirmation that money is pouring into crypto, but a closer look at the data tells us that it's a much, much more complicated market than that.

Market Dynamics

While usage reached an all-time high, the cash base underlying it contracted, meaning the same dollars are turning over faster in a shrinking pool. This isn't good news for the market. Even though Circle and Visa see the numbers as a payments milestone, traders should see them as a liquidity warning.

Supply and volume answer two completely different questions Stablecoin supply is the total value of issued tokens. It works as crypto's cash balance: the dollar-denominated capital parked on exchanges, held in wallets, and locked into DeFi contracts, available to be spent on something else. DefiLlama currently places that figure near $312 billion.

Volume is the amount transferred over a period. Visa's adjusted measure, developed with Allium, Artemis, and Castle Island Ventures, filters out high-frequency bots, exchange treasury rebalancing, and repetitive smart-contract calls, so the $1. 79 trillion is designed to be an estimate of economically meaningful on-chain activity.

Market Impact

Adjusted volume in the first half of 2026 totaled $8. 82 trillion, already exceeding the $5. 8 trillion recorded in all of 2024.

The two can move in opposite directions, and in the second quarter, they did. IO's Q2 report put total supply at roughly $312 billion, down more than $3 billion from Q1's record $315 billion and the first quarterly contraction since Q3 2023. Across Q2 as a whole, however, adjusted volume declined 5.

5% alongside the supply contraction. Yield-bearing stablecoins drove most of that decline, falling 15% and shedding more than $3. 5 billion, with Ethena's sUSDe losing 52% of its market cap and Sky's sUSDS down 16%.

Crypto markets are watching this development closely as investors weigh its potential impact on prices.