Spero Therapeutics Inc. (SPRO)
NASDAQ: SPRO
· Real-Time Price · USD
1.89
-0.05 (-2.58%)
At close: Sep 26, 2025, 3:59 PM
1.89
0.00%
After-hours: Sep 26, 2025, 07:50 PM EDT
SPRO Delta Exposure By Expiry
The total Delta Exposure (DEX) for SPRO across all expirations shows 1,179.02 net shares that market makers must hedge, with 3,758.35 from calls and 2,579.33 from puts. The put-call delta ratio of 0.69 suggests neutral market maker positioning.
SPRO DEX Table
| Expiry Date | Call Delta | Put Delta | Net Delta | P/C Delta |
|---|---|---|---|---|
| Oct 17, 25 | 1,366.82 | -1,795.11 | -428.29 | 1.31 |
| Nov 21, 25 | 7.72 | 0 | 7.72 | 0.00 |
| Jan 16, 26 | 1,903.17 | -705.9 | 1,197.27 | 0.37 |
| Apr 17, 26 | 480.64 | -78.32 | 402.32 | 0.16 |