Unusual Options Activity
CTMX Unusual Options Activity - CytomX Therapeutics
- Last active day
- September 23, 2026
- Active days (30d)
- 2
- Biggest recent print
- Put $4.0000 · $567K
AI summary
On September 23, 2026, CytomX Therapeutics, Inc. (CTMX) experienced notable options activity, primarily focused on put options. A significant print involved a put option at the $4.00 strike, expiring on November 20, 2026, with a premium of $567,000. This transaction reflects a volume-to-open interest ratio of 7.9, indicating a relatively high level of activity compared to existing open positions. Over the past 30 days, CTMX has seen two active days in the options market, suggesting a potential increase in interest among traders. The absence of call activity on this day highlights a distinct focus on bearish sentiment, as indicated by the substantial put premium. Overall, the data reflects a concentrated interest in downside protection or speculation regarding the stock's future performance.
AI-generated summary
CTMX was last active on September 23, 2026.
Prints on September 23, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| CTMX | Put | $4.0000 | 11/20/26 (59d) | 7.9× | $567K | 153% |
History
- 2026-09-231 prints$0K calls$567K puts
- 2026-09-221 prints$0K calls$567K puts
- 2026-07-171 prints$0K calls$273K puts
- 2026-07-161 prints$0K calls$273K puts
- 2026-06-231 prints$39K calls$0K puts
- 2026-06-221 prints$39K calls$0K puts
- 2026-05-211 prints$25K calls$0K puts
- 2026-05-151 prints$0K calls$168K puts
- 2026-04-171 prints$0K calls$194K puts
- 2026-04-021 prints$77K calls$0K puts
- 2026-03-193 prints$92K calls$425K puts
- 2026-03-182 prints$0K calls$223K puts
- 2026-03-173 prints$1.6M calls$0K puts
- 2026-03-161 prints$0K calls$70K puts
- 2026-03-132 prints$1.6M calls$0K puts
- 2026-03-101 prints$968K calls$0K puts
- 2026-03-051 prints$422K calls$0K puts
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