Pulse · 2026-10-03

StableFX hits its largest volume day since mainnet launch

Aero also set a daily high, while Uniswap's weekly turnover halved. Yet StableFX's record came in a quieter week for the market.

StableFX daily volume from September 16 to October 2, 2026. October 2 reaches 2.78 million USDC, 40% above the previous high of 1.99 million on September 23. Source: Florin production data.

StableFX recorded 2.78m USDC in volume on October 2, its busiest day since Arc's public mainnet launch on September 16. Florin's production data puts the total 40% above the venue's previous high of 1.99m USDC on September 23. Almost all of the record day's turnover was in EURC/USDC.

Large settlements did much of the work. Three trades of just under 500,000 USDC apiece accounted for 54% of the day's volume. October 2 alone supplied 59% of StableFX's turnover in the seven days ending that day.

The record did not make it a record week. StableFX processed 4.75m USDC from September 26 to October 2, down 7% from the preceding seven days. All comparisons use complete UTC days, excluding October 3's partial activity.

A changing venue mix

Aero also reached a post-launch daily high on October 2, at 2.98m USDC, narrowly exceeding September 28. Its growth was broader than one day: four of its five busiest days since launch fell in the latest week. Weekly volume rose 30%, from 11.79m to 15.33m USDC.

Uniswap moved the other way. Its weekly volume fell 51%, from 59.96m to 29.29m USDC. The earlier period included a 20.73m USDC peak on September 23, which makes the comparison demanding. Uniswap nevertheless remained Florin's largest covered venue, with almost twice Aero's weekly turnover.

Seven-day shares of Florin's covered Arc volume. Between the weeks ending September 25 and October 2, Uniswap falls from 78.0% to 59.3%, Aero rises from 15.3% to 31.1%, and StableFX rises from 6.6% to 9.6%.

Aero's share of covered volume doubled between the two weeks, from 15% to 31%, while Uniswap's fell from 78% to 59%. StableFX's share increased from 6.6% to 9.6% despite its lower weekly turnover. The denominator matters: total volume across Florin's covered venues fell from 76.84m to 49.37m USDC.

The change also reaches beyond StableFX's euro-dollar market. In cirBTC/USDC, Aero's share rose from 13% to 28% between the same two weeks, even as the pair's combined turnover fell.