DateundStrikeTotal Gamma2020-07-09SPY700$-0.002020-07-09SPY600$-0.002020-07-09SPY1700$-0.002020-07-09SPY1650$-0.002020-07-09SPY800$-0.002020-07-09SPY1000$-0.002020-07-09SPY400$-166,964.712020-07-09SPY300$-17,873,471.302020-07-09SPY500$-184.272020-07-09SPY200$-33.88