The Coinbase Bitcoin discount versus Binance reached its widest spread of 2026, according to a November 1 market note. The reading compared Coinbase's BTC-USD price with Binance's BTC-USDT quote, adjusting Tether to its dollar value. A negative spread indicates Bitcoin was trading cheaper on Coinbase than on Binance after the USDT adjustment.
The extreme print came as Binance kept withdrawals paused following unauthorized hot-wallet transfers on October 29. The exchange estimated the breach at nearly $6.3 billion, said it found no evidence of a wallet private-key leak, and pledged to cover losses through its SAFU fund and company resources. Withdrawals were frozen while Binance investigated, shut down affected systems, and completed security checks. Deposits and trading continued, but exiting funds was restricted.
That freeze damaged the usual arbitrage route, where traders buy Bitcoin on the cheaper venue, transfer it, and sell where prices are higher. With Binance exits blocked, the gap could persist. CryptoQuant's Coinbase Premium Index, a related gauge, fell to -0.27% on October 29, its lowest level since November 2022.
Binance announced on November 1 that phase-one withdrawals would reopen between 06:00 and 09:00 UTC. Bitcoin was included in the first wave, alongside assets on Ethereum, BNB Chain, Solana, XRP and other networks. The exchange warned of possible short delays and said coverage stood near 95% of the estimated hit. Later that day, Bitcoin, Ether and some stablecoin withdrawals were live again. Traders are now watching whether the Coinbase discount narrows as arbitrage flows resume.
