USDC stablecoin growth adds $584M in a week, leads $1B market surge

Stablecoins keep piling on billions in fresh supply, and right now nobody is minting faster than Circle. USDC stablecoin growth accelerated again this past week, with the token adding roughly $584 million to its market cap in just seven days, according to data reviewed by Crypto Briefing. That single-week gain drove most of a combined $1 billion increase spread across USDC, Ethena’s USDe, and PayPal’s PYUSD, underscoring how much of the sector’s expansion currently rests on one issuer.

Key takeaways

• USDC added about $584 million to its market cap in one week, the biggest driver of a $1 billion combined stablecoin supply increase.
• Total stablecoin supply sits between $303 billion and $310 billion, with USDC holding roughly 24% market share.
• Tether’s USDT still leads with about 60% market share and roughly $184 billion in supply.
• USDC captures 60% to 70% of adjusted on-chain transaction volume in multiple 2026 periods, despite trailing USDT in total supply.
• Zcash surged about 20% to near-decade highs around $1,023 to $1,051, triggering $34.5 million to $44 million in short liquidations tied to Grayscale’s ZCSH ETF inflows.

USDC spearheads stablecoin market expansion

USDC’s latest weekly gain confirms it as the fastest-growing large stablecoin in a market that has ballooned to between $303 billion and $310 billion in total supply. That kind of range reflects how quickly capital moves between issuers, but the direction is clear: dollar-pegged tokens keep absorbing demand, and Circle’s token is capturing an outsized share of it.

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