Upstream Bio Inc. (UPB)
NASDAQ: UPB
· Real-Time Price · USD
17.63
-0.11 (-0.62%)
At close: Aug 22, 2025, 3:59 PM
17.73
0.57%
After-hours: Aug 22, 2025, 04:49 PM EDT
UPB Delta Exposure By Expiry
The total Delta Exposure (DEX) for UPB across all expirations shows 49,238.1 net shares that market makers must hedge, with 49,353.84 from calls and 115.74 from puts. The put-call delta ratio of 0.00 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 42,154.32 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.
UPB DEX Table
| Expiry Date | Call Delta | Put Delta | Net Delta | P/C Delta |
|---|---|---|---|---|
| Sep 19, 25 | 5,726.14 | -31.84 | 5,694.3 | 0.01 |
| Oct 17, 25 | 1,034.72 | 0 | 1,034.72 | 0.00 |
| Nov 21, 25 | 42,194.05 | -39.73 | 42,154.32 | 0.00 |
| Feb 20, 26 | 398.93 | -44.17 | 354.76 | 0.11 |