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 Open Interest Chart
Open interest breakdown by expiration date for UPB
options contracts. Displaying data for 4
active expiration dates with future expiry.
Total open interest across all expiries is
5,078
contracts, with 5,024
call contracts and
54 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 | 861 | 5 | 0.01 |
| Oct 17, 2025 | 95 | 0 | 0.00 |
| Nov 21, 2025 | 4,031 | 4 | 0.00 |
| Feb 20, 2026 | 37 | 45 | 1.22 |