Unusual Options Activity
SLS Unusual Options Activity - SELLAS Life Sciences
- Last active day
- October 9, 2026
- Active days (30d)
- 23
- Biggest recent print
- Put $7.0000 · $509K
AI summary
On October 9, 2026, unusual options activity was observed in SELLAS Life Sciences Group, Inc. (SLS). A total of three prints were recorded, with a notable imbalance in premium, as puts accounted for $549,565 while calls totaled $43,085. The most significant print was a put option with a strike price of $7.00, expiring on April 16, 2027, which had a premium of $509,065 and a volume-to-open interest ratio of 5.8, indicating heightened interest relative to existing positions. Additionally, two call options were noted: one with a strike price of $12.50, expiring on October 16, 2026, with a premium of $43,085 and a volume-to-open interest ratio of 2.9, and another put option with a strike price of $11.50, also expiring on October 16, 2026, which had a premium of $40,500 and a volume-to-open interest ratio of 1.5. The activity suggests a strong focus on put options in this session.
AI-generated summary
Prints on October 9, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| SLS | Put | $7.0000 | 04/16/27 (190d) | 5.8× | $509K | 184% | |
| SLS | Call | $12.5000 | 10/16/26 (6d) | 2.9× | $43K | 107% | |
| SLS | Put | $11.5000 | 10/16/26 (6d) | 1.5× | $41K | 127% |
History
- 2026-10-093 prints$43K calls$550K puts
- 2026-10-081 prints$0K calls$509K puts
- 2026-10-071 prints$0K calls$3.9M puts
- 2026-10-063 prints$1.1M calls$3.9M puts
- 2026-10-056 prints$1.4M calls$48K puts
- 2026-10-024 prints$294K calls$48K puts
- 2026-10-012 prints$169K calls$120K puts
- 2026-09-304 prints$207K calls$397K puts
- 2026-09-292 prints$38K calls$277K puts
- 2026-09-281 prints$57K calls$0K puts
- 2026-09-253 prints$3.1M calls$0K puts
- 2026-09-242 prints$3.1M calls$0K puts
- 2026-09-232 prints$109K calls$0K puts
- 2026-09-223 prints$161K calls$0K puts
- 2026-09-212 prints$3.7M calls$0K puts
- 2026-09-182 prints$3.7M calls$0K puts
- 2026-09-173 prints$126K calls$54K puts
- 2026-09-163 prints$93K calls$54K puts
- 2026-09-154 prints$81K calls$222K puts
- 2026-09-1410 prints$205K calls$1.3M puts
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