$rave Profit of 1700, highest profit was 2200 but not closed. The position size was not large, even the initial bid/ask spread in the group was 0.33. The minimum precision for the contracts was all at 10u, very similar to MMT at the time. When the matching MM exited and the arbitrage bot withdrew, I expected a short squeeze, and under the current conditions, a short squeeze is easier than a price crash. However, due to the loss of liquidity and insufficient accumulated OI, wide-range fluctuations occurred.