Upstream Bio Inc. (UPB)
NASDAQ: UPB
· Real-Time Price · USD
18.63
0.04 (0.22%)
At close: Oct 03, 2025, 3:59 PM
18.50
-0.70%
After-hours: Oct 03, 2025, 07:07 PM EDT
UPB Gamma Exposure By Expiry
The total Gamma Exposure (GEX) for UPB across all expirations is 2,577.53 shares per 1% move, with 2,919.29 from calls and 341.76 from puts. The put-call GEX ratio of 0.12 shows call-heavy positioning, potentially creating volatility as market makers hedge by selling into strength and buying weakness.
UPB GEX Table
| Expiry Date | Call GEX | Put GEX | Net GEX | P/C GEX |
|---|---|---|---|---|
| Oct 17, 25 | 92.31 | -250.82 | -158.51 | 2.72 |
| Nov 21, 25 | 2,772.61 | -32.86 | 2,739.75 | 0.01 |
| Feb 20, 26 | 33.99 | -56.49 | -22.5 | 1.66 |
| May 15, 26 | 20.38 | -1.59 | 18.79 | 0.08 |