According to @StockMKTNewz, Nasdaq will pilot options that expire on Mondays and Wednesdays starting January 26, adding new short-dated cycles for active traders seeking 0DTE strategies; source: @StockMKTNewz. Evidence from daily-expiry launches in SPX shows more frequent expirations expand 0DTE liquidity and intraday hedging flows, shaping order book dynamics; source: Cboe Global Markets 2023. Greater 0DTE activity can concentrate dealer gamma around key strikes and amplify late-day volatility in underlying equities, impacting intraday risk management; source: JPMorgan options research 2023. Crypto has exhibited elevated correlation with U.S. equities since 2020, so volatility shifts around these new expiry windows may spill over to BTC and ETH price action; source: International Monetary Fund 2022. Traders can monitor Monday and Wednesday U.S. close windows for liquidity and volatility shifts and adjust position sizing and hedging accordingly; source: Cboe Global Markets 2023 and International Monetary Fund 2022.