Unusual Options Activity
TSM Unusual Options Activity - Taiwan Semiconductor Manufacturing
- Last active day
- August 21, 2026
- Active days (30d)
- 23
- Biggest recent print
- Put $500.0000 · $4.3M
AI summary
On August 21, 2026, Taiwan Semiconductor Manufacturing Company Ltd. (TSM) experienced notable options activity, with a total of seven prints primarily focused on put options. The total put premium reached approximately $12.1 million, while no call premiums were reported. The largest transaction involved a put option at a strike price of $500, expiring on the same date, with a premium of about $4.27 million and a volume-to-open interest ratio of 2.0. Other significant prints included a put at the $450 strike, also expiring on August 21, with a premium of approximately $2.95 million and a volume-to-open interest ratio of 3.6. Additional put options with varying strike prices, such as $437.50 and $420, also contributed to the day's activity, with premiums ranging from around $507,000 to $2.86 million. The overall put/call balance indicates a strong preference for puts, reflecting a cautious sentiment among traders.
AI-generated summary
Prints on August 21, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| TSM | Put | $450.0000 | 08/21/26 (1d) | 3.6× | $2.9M | 0% | |
| TSM | Put | $407.5000 | 08/28/26 (8d) | 2.9× | $282K | 34% | |
| TSM | Put | $437.5000 | 08/21/26 (1d) | 2.3× | $2.9M | 40% | |
| TSM | Put | $500.0000 | 08/21/26 (1d) | 2.0× | $4.3M | 187% | |
| TSM | Put | $420.0000 | 08/28/26 (6d) | 1.6× | $507K | 34% | |
| TSM | Put | $435.0000 | 08/21/26 (1d) | 1.5× | $1.1M | 44% | |
| TSM | Put | $407.5000 | 08/21/26 (1d) | 1.8× | $139K | 39% |
History
- 2026-08-217 prints$0K calls$12.1M puts
- 2026-08-2011 prints$2.0M calls$45.2M puts
- 2026-08-1918 prints$4.3M calls$40.5M puts
- 2026-08-1818 prints$3.2M calls$8.3M puts
- 2026-08-1710 prints$11.4M calls$1.5M puts
- 2026-08-1414 prints$12.7M calls$1.2M puts
- 2026-08-1313 prints$4.8M calls$1.2M puts
- 2026-08-124 prints$2.0M calls$0K puts
- 2026-08-116 prints$29.0M calls$15.3M puts
- 2026-08-1011 prints$29.8M calls$17.2M puts
- 2026-08-0715 prints$82.7M calls$3.9M puts
- 2026-08-0610 prints$82.8M calls$2.7M puts
- 2026-08-057 prints$7.8M calls$1.6M puts
- 2026-08-0411 prints$15.4M calls$776K puts
- 2026-08-038 prints$8.8M calls$688K puts
- 2026-07-3119 prints$42.6M calls$11.2M puts
- 2026-07-3028 prints$46.5M calls$13.4M puts
- 2026-07-2920 prints$51.8M calls$14.2M puts
- 2026-07-2820 prints$57.5M calls$14.9M puts
- 2026-07-2722 prints$23.8M calls$6.0M puts
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