According to @WatcherGuru, $4.3 billion worth of Bitcoin (BTC) and Ethereum (ETH) options expire today. Options expirations can trigger hedging-driven moves in spot and futures and shifts in implied volatility as dealers rebalance delta and gamma, according to CME Group. Traders commonly monitor open interest by strike, max pain, and near-the-money clusters during crypto options expiry to gauge potential pinning or volatility release, according to Deribit Insights.