Binance $BTC/USDT spread is locked at $0.01 across 60 consecutive samples (1Hz polling). That's 1.2 basis points on an $83.6k asset – essentially zero slippage for retail.

This tight spread signals massive liquidity depth: market makers are competing so hard they're willing to profit on fractions of a percent per trade. For context, traditional forex majors like EUR/USD run ~0.0001% spreads, but $BTC is now in the same ballpark despite being a 15-year-old asset.

Why it matters: Sub-0.01% spreads mean you can enter/exit positions at scale without moving the market. High-frequency strategies become viable, and institutional traders can execute multi-million dollar orders with minimal price impact. This is what mature market infrastructure looks like.