According to @rovercrc, the Bitcoin Coinbase Premium Gap flipped negative, signaling Coinbase’s BTC/USD price is trading below offshore venues and indicating a potential shift in US-driven order flow. Source: @rovercrc on X, Oct 18, 2025. CryptoQuant defines the Coinbase Premium as the price difference between Coinbase and other major exchanges, with negative readings generally reflecting weaker US spot demand and short-term selling pressure. Source: CryptoQuant Indicator Documentation (Coinbase Premium Index). Traders monitor a negative Coinbase Premium for downside risk during US market hours and for confirmation alongside price action and liquidity signals. Source: CryptoQuant research notes on using Coinbase Premium as a proxy for US flows.