0DTE Options and Intraday NQ: What Changes When Most Option Trading Is Same-Day
Most S&P 500 index option volume is in contracts that expire the same day, and NDX, QQQ and NQ options expire every weekday. When each one settles, why same-day trading never shows up in a morning GEX chart, what research says about dealer hedging and volatility, and how NQ traders handle it.