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
Upstream Bio dark pool activity today shows an average trade size of 7,468 with $139.2K average premium per trade.
| Rank | Time | Price | Size | Volume | Size / Vol | Size / Avg Vol | Avg. Paid |
|---|---|---|---|---|---|---|---|
| 1 | 10/2/2025 11:42 AM | 18.64 | 7,500 | 42,846 | 17.50% | 1.52% | 139.8K |
| 2 | 10/2/2025 11:42 AM | 18.64 | 7,436 | 50,282 | 14.79% | 1.51% | 138.61K |
| Date | Long Volume | Short Volume | Long / Short | % Short Change |
|---|---|---|---|---|
| Oct 03, 2025 | 26.88K | 44.72K | 0.60 | -17.98% |
| Sep 26, 2025 | 16.69K | 54.52K | 0.31 | -18.19% |
| Sep 19, 2025 | 10.29K | 66.64K | 0.15 | -5.43% |
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