According to @CoinMarketCap, 2025’s market structure was defined by falling or flat BTC and altcoin prices while the stablecoin market cap surged, with USDT and USDC reaching a record combined roughly $263B, source: @CoinMarketCap. According to @CoinMarketCap, the cited drivers were payments adoption and regulation, specifically the GENIUS Act, alongside inflows from large institutions and venture capital, source: @CoinMarketCap. According to @CoinMarketCap, this positions stablecoins as the dominant liquidity base for crypto, a key signal traders can watch via USDT and USDC share versus BTC and alt performance, source: @CoinMarketCap.

According to the source, a 2025 review asserts record stablecoin growth tied to a GENIUS Act opening the floodgates; traders should verify any U.S. federal legislation by reviewing bill text, status, and committee actions on Congress.gov before reallocating capital (source: Congress.gov). To confirm whether the stablecoin market cap expanded in 2025, aggregate circulating supply for USDT and USDC from issuer attestations and on-chain contract explorers, comparing month-over-month changes to prior years for a data-driven view (sources: Tether Transparency, Circle Attestations, Etherscan). Assess trading impact by monitoring stablecoin share of total crypto market cap, fiat on/off-ramp spreads, order book depth, and spot/perpetual volumes across major venues before adjusting basis, funding, and liquidity-provision strategies (sources: Binance Market Data, Coinbase Advanced Trade Data, CME Group). Recheck regulatory risk by reviewing U.S. Treasury and FinCEN guidance on stablecoins and any supervisory statements affecting bank custody and payment rails, as these can alter USDT/USDC settlement speed and market liquidity (sources: U.S. Treasury, FinCEN, Federal Reserve).