Unusual Options Activity
STM Unusual Options Activity - STMicroelectronics N.V.
- Last active day
- August 21, 2026
- Active days (30d)
- 20
- Biggest recent print
- Put $65.0000 · $1.3M
AI summary
On August 21, 2026, STMicroelectronics N.V. (STM) experienced notable options activity, primarily in put options. A total of five prints were recorded, with the put premium amounting to approximately $3.69 million, while no call premiums were noted. The activity included several significant transactions, particularly in puts with expirations on the same day. The largest print was for the STM Put at a strike price of $65.00, with a premium of $1,255,380 and a volume-to-open interest ratio of 2.8. Another noteworthy transaction involved the STM Put at a strike price of $60.00, which had a premium of $633,420 and a volume-to-open interest ratio of 3.8. Additional prints included puts at strike prices of $55.00, $54.00, and $39.00, with premiums ranging from approximately $405,300 to $1,156,050. The overall put/call balance reflects a strong emphasis on bearish sentiment in the options market for STM on this date.
AI-generated summary
Prints on August 21, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| STM | Put | $39.0000 | 01/15/27 (148d) | 10.1× | $239K | 60% | |
| STM | Put | $60.0000 | 08/21/26 (1d) | 3.8× | $633K | 192% | |
| STM | Put | $65.0000 | 08/21/26 (1d) | 2.8× | $1.3M | 258% | |
| STM | Put | $55.0000 | 08/21/26 (1d) | 1.5× | $1.2M | 93% | |
| STM | Put | $54.0000 | 08/21/26 (1d) | 1.5× | $405K | 98% |
History
- 2026-08-215 prints$0K calls$3.7M puts
- 2026-08-206 prints$0K calls$4.2M puts
- 2026-08-192 prints$0K calls$902K puts
- 2026-08-181 prints$0K calls$407K puts
- 2026-08-173 prints$2.1M calls$0K puts
- 2026-08-147 prints$2.2M calls$3.4M puts
- 2026-08-134 prints$39K calls$3.4M puts
- 2026-08-071 prints$235K calls$0K puts
- 2026-08-064 prints$2.6M calls$0K puts
- 2026-08-055 prints$9.3M calls$0K puts
- 2026-08-043 prints$6.9M calls$527K puts
- 2026-08-033 prints$652K calls$989K puts
- 2026-07-315 prints$6.1M calls$5.5M puts
- 2026-07-304 prints$6.1M calls$5.0M puts
- 2026-07-292 prints$837K calls$0K puts
- 2026-07-284 prints$459K calls$396K puts
- 2026-07-276 prints$1.3M calls$539K puts
- 2026-07-246 prints$3.7M calls$269K puts
- 2026-07-237 prints$3.5M calls$517K puts
- 2026-07-224 prints$877K calls$391K puts
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