Stablecoin supply has contracted by more than $12 billion since mid-May, marking the sharpest pullback since 2022. But that headline figure masks an uneven retreat. While dollar-pegged tokens as a group are shrinking, the two largest players, Tether’s USDT and Circle’s USDC, continue to anchor the sector. USDT sits at around $184 billion in market value, and USDC holds about $73 billion, leaving them firmly dominant even after the June drop took total stablecoin supply to roughly $312 billion.

What stands out is that this does not look like a uniform exit from stablecoins. It looks more like concentration inside the category. USDT and USDC remain the default settlement rails for much of the crypto market because they already have the deepest liquidity, the broadest exchange and blockchain support, and the clearest reserve narratives. Circle says USDC is fully backed by cash equivalents and Treasuries. In a tighter market, that kind of scale and clarity can create stickiness. The takeaway is straightforward: the sector is shrinking, but the leaders are shrinking less than the field around them, which leaves market share increasingly concentrated at the top.