Sutro Biopharma Inc. (STRO)

The total Delta Exposure (DEX) for STRO across all expirations shows 411.43 net shares that market makers must hedge, with 424.73 from calls and 13.3 from puts. The put-call delta ratio of 0.03 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 406.26 net DEX represents significant hedging pressure that may cap upside moves. The nearest expiration on Sep 19, 25 carries negative delta forcing market makers to buy shares, potentially providing support.