Upstream Bio Inc. (UPB)
NASDAQ: UPB
· Real-Time Price · USD
18.95
0.33 (1.77%)
At close: Aug 15, 2025, 3:59 PM
19.00
0.29%
After-hours: Aug 15, 2025, 05:39 PM EDT
UPB Open Interest Chart
Open interest breakdown by expiration date for UPB
options contracts. Displaying data for 3
active expiration dates with future expiry.
Total open interest across all expiries is
4,345
contracts, with 4,312
call contracts and
33 put contracts. The
overall put-call open interest ratio is
0.01, indicating a
bullish
bias in positioning. Options expire from
Sep 19, 2025
to
Feb 20, 2026.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Sep 19, 2025 | 254 | 4 | 0.02 |
| Nov 21, 2025 | 4,031 | 4 | 0.00 |
| Feb 20, 2026 | 27 | 25 | 0.93 |