Unusual Options Activity
ALNY Unusual Options Activity - Alnylam Pharmaceuticals
- Last active day
- October 5, 2026
- Active days (30d)
- 2
- Biggest recent print
- Put $210.0000 · $685K
AI summary
On October 5, 2026, Alnylam Pharmaceuticals, Inc. (ALNY) experienced notable options activity with a significant put transaction. A single print was recorded for a put option with a strike price of $210, set to expire on December 18, 2026. The premium for this transaction was reported at $684,867, indicating a substantial investment in this position. The volume-to-open interest ratio for this put option stands at 3.1, suggesting that the volume is relatively high compared to the existing open interest. Over the past 30 days, ALNY has seen activity on only two days, indicating a period of relative inactivity prior to this notable transaction. The overall call/put balance for the day was heavily skewed towards puts, reflecting a potential shift in market sentiment or hedging strategies among traders.
AI-generated summary
ALNY was last active on October 5, 2026.
Prints on October 5, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| ALNY | Put | $210.0000 | 12/18/26 (76d) | 3.1× | $685K | 53% |
History
- 2026-10-051 prints$0K calls$685K puts
- 2026-10-021 prints$0K calls$685K puts
- 2026-09-032 prints$909K calls$0K puts
- 2026-09-022 prints$909K calls$0K puts
- 2026-08-271 prints$593K calls$0K puts
- 2026-08-262 prints$593K calls$875K puts
- 2026-08-251 prints$0K calls$875K puts
- 2026-07-311 prints$687K calls$0K puts
- 2026-07-302 prints$687K calls$417K puts
- 2026-07-291 prints$0K calls$417K puts
- 2026-07-061 prints$0K calls$1.1M puts
- 2026-07-021 prints$0K calls$1.1M puts
- 2026-03-301 prints$275K calls$0K puts
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