Unusual Options Activity
C Unusual Options Activity - Citigroup
- Last active day
- August 21, 2026
- Active days (30d)
- 22
- Biggest recent print
- Put $140.0000 · $1.6M
AI summary
On August 21, 2026, Citigroup, Inc. (C) experienced notable options activity with a total of 11 prints. The overall premium for calls was $185,721, while puts totaled $5,591,886, indicating a significant preference for put options on this day. The most prominent trades included a put option with a strike of 129.00 expiring on August 21, 2026, which had a premium of $116,740 and a volume-to-open interest ratio of 10.4. Other significant puts included a 127.00 strike expiring on August 28, 2026, with a premium of $150,187 (Vol/OI 9.7), and a 140.00 strike put expiring on the same date, with a premium of $1,585,980 (Vol/OI 1.6). On the call side, the highest premium was for a 135.00 strike call expiring on August 28, 2026, at $89,250 (Vol/OI 2.1). The activity reflects a notable imbalance favoring put options, indicating increased interest in downside protection or bearish sentiment among traders.
AI-generated summary
Prints on August 21, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| C | Put | $129.0000 | 08/21/26 (1d) | 10.4× | $117K | 30% | |
| C | Put | $127.0000 | 08/28/26 (8d) | 9.7× | $150K | 28% | |
| C | Call | $133.0000 | 08/21/26 (1d) | 3.7× | $27K | 33% | |
| C | Put | $123.0000 | 09/04/26 (13d) | 2.8× | $59K | 31% | |
| C | Call | $135.0000 | 08/28/26 (8d) | 2.1× | $89K | 29% | |
| C | Call | $134.0000 | 08/28/26 (8d) | 2.1× | $70K | 29% | |
| C | Put | $137.0000 | 08/21/26 (1d) | 1.6× | $1.4M | 47% | |
| C | Put | $140.0000 | 08/21/26 (1d) | 1.6× | $1.6M | 62% | |
| C | Put | $140.0000 | 11/20/26 (90d) | 1.6× | $1.1M | 30% | |
| C | Put | $139.0000 | 08/21/26 (1d) | 1.6× | $766K | 57% | |
| C | Put | $138.0000 | 08/21/26 (1d) | 1.5× | $452K | 52% |
History
- 2026-08-2111 prints$186K calls$5.6M puts
- 2026-08-2011 prints$224K calls$10.1M puts
- 2026-08-195 prints$233K calls$5.6M puts
- 2026-08-181 prints$0K calls$41K puts
- 2026-08-171 prints$0K calls$953K puts
- 2026-08-141 prints$0K calls$953K puts
- 2026-08-121 prints$122K calls$0K puts
- 2026-08-112 prints$122K calls$221K puts
- 2026-08-102 prints$0K calls$248K puts
- 2026-08-075 prints$267K calls$223K puts
- 2026-08-065 prints$312K calls$255K puts
- 2026-08-054 prints$726K calls$204K puts
- 2026-08-049 prints$1.0M calls$361K puts
- 2026-08-0328 prints$151.8M calls$1.1M puts
- 2026-07-3126 prints$151.7M calls$1.0M puts
- 2026-07-3010 prints$634K calls$846K puts
- 2026-07-299 prints$454K calls$806K puts
- 2026-07-282 prints$146K calls$267K puts
- 2026-07-273 prints$292K calls$267K puts
- 2026-07-243 prints$146K calls$1.5M puts
Related tickers