According to @CNBC, Morning Squawk highlights quad witching, Nike sliding, and updates on U.S. weed rules as key market drivers into the open, source: CNBC. Quad witching is the simultaneous expiration of stock index futures, stock index options, single-stock options, and single-stock futures, a setup that typically concentrates volume and can increase intraday volatility near the close, source: Cboe Global Markets. Heightened equity volatility around quad witching can transmit to crypto via risk sentiment, with research documenting stronger stock and crypto comovement since 2020, making BTC and ETH volatility tracking relevant for traders, source: International Monetary Fund. With Nike in focus, discretionary-sector flows and options positioning may see knock-on effects during expiration-driven hedging and rebalancing windows that can widen spreads and pressure liquidity, source: Cboe Global Markets. CNBC’s mention of weed rules flags potential catalysts for U.S. cannabis equities and related ETFs, making regulatory headlines a watch item for intraday momentum, source: CNBC. Trading implications include monitoring the open and last-hour liquidity, tracking options open interest and rolls, and adjusting order execution to avoid crowded expiration windows, source: Cboe Global Markets.