Session archive
1085 sessions · newest first
Each page summarises one trading day of SPX dealer positioning and opens the full minute-by-minute replay in the terminal. All of it is free — the only thing sold on this site is the live stream while the market trades. New to the terms? Start with what GEX is, then the zero-gamma flip, call resistance and put support, and vanna and charm.
Latest sessions
SPX dealer gamma — Thursday, August 20, 2026
SPX closed 7,640.37, down 0.49%, 6.0 points above the zero-gamma flip at 7,634.4, inside the expected-hold band all session.
SPX dealer gamma — Wednesday, August 19, 2026
SPX closed 7,707.16, down 0.20%, 39.1 points above the zero-gamma flip at 7,668.1, inside the expected-hold band all session.
SPX dealer gamma — Tuesday, August 18, 2026
SPX closed 7,690.82, down 0.22%, 8.7 points below the zero-gamma flip at 7,699.5, 8 flip crossings.
SPX dealer gamma — Monday, August 17, 2026
SPX closed 7,745.27, down 0.53%, 1.0 points below the zero-gamma flip at 7,746.3, 16 flip crossings.
SPX dealer gamma — Friday, August 14, 2026
SPX closed 7,785.87, down 0.20%, 34.0 points above the zero-gamma flip at 7,751.9, inside the expected-hold band all session.
SPX dealer gamma — Thursday, August 13, 2026
SPX closed 7,798.82, up 0.41%, 76.0 points above the zero-gamma flip at 7,722.8, inside the expected-hold band all session.
SPX dealer gamma — Wednesday, August 12, 2026
SPX closed 7,748.52, down 0.17%, 81.7 points above the zero-gamma flip at 7,666.8, inside the expected-hold band all session.
SPX dealer gamma — Tuesday, August 11, 2026
SPX closed 7,727.60, down 0.45%, 33.9 points above the zero-gamma flip at 7,693.7, inside the expected-hold band all session.