A Tweet is All It Takes: Short Gamma Update $SPXDealers are still short gamma until the market is over 2900. Based on last several days this indicates 2900 could be a decent topping target. Large Put open interest at 2850 may provide support. Because dealers are short gamma then will fuel the market higher or lower when the direction gets set. In summary: volatility is likely to continue unless markets push through 2900.
