ACM Research Inc. (ACMR)

The total Delta Exposure (DEX) for ACMR across all expirations shows 326,439.7 net shares that market makers must hedge, with 471,409.49 from calls and 144,969.79 from puts. The put-call delta ratio of 0.31 shows bullish positioning with call dominance, potentially providing upward momentum but leaving the market vulnerable to sharp pullbacks. The largest delta concentration at Nov 21, 25 with 84,834.46 net DEX represents significant hedging pressure that may cap upside moves. The nearest expiration on Sep 19, 25 carries positive delta requiring market makers to short shares, potentially creating resistance.