Unusual Options Activity
UPB Unusual Options Activity - Upstream Bio
- Last active day
- March 4, 2026
- Active days (30d)
- 2
- Biggest recent print
- Put $7.5000 · $49K
AI summary
On March 4, 2026, Upstream Bio, Inc. (UPB) experienced notable options activity with a significant put transaction. A put option with a strike price of $7.50, expiring on March 20, 2026, was printed with a premium of $48,780. This transaction reflects a volume-to-open interest ratio of 2.5, indicating a relatively active position compared to existing open interest. The overall activity in the last 30 days for UPB has been limited, with only two active days noted. The absence of call premiums suggests a one-sided focus on put options during this trading session. This activity may draw attention as it represents a substantial commitment to the downside at this strike price.
AI-generated summary
UPB was last active on March 4, 2026.
Prints on March 4, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| UPB | Put | $7.5000 | 03/20/26 (17d) | 2.5× | $49K | 84% |
History
- 2026-03-041 prints$0K calls$49K puts
- 2026-02-251 prints$83K calls$0K puts
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