Unusual Options Activity
TAC Unusual Options Activity - TransAlta
- Last active day
- August 13, 2026
- Active days (30d)
- 2
- Biggest recent print
- Put $12.0000 · $222K
AI summary
On August 13, 2026, TransAlta Corporation (TAC) experienced notable options activity with two significant prints. The call option with a strike price of $15.00, expiring on December 18, 2026, recorded a premium of $221,000, indicating a volume-to-open interest ratio of 16.1. In contrast, a put option with a strike price of $12.00, also expiring on December 18, 2026, had a premium of $222,000 and a volume-to-open interest ratio of 16.0. This activity occurred on a day with only two active trading days in the last 30, suggesting a concentrated interest in these specific strikes and expirations. The call/put balance is nearly even, with slightly more premium attributed to the put option. Overall, the premiums and volume indicate a heightened level of trading interest in TAC options, particularly around the December expiration.
AI-generated summary
TAC was last active on August 13, 2026.
Prints on August 13, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| TAC | Call | $15.0000 | 12/18/26 (128d) | 16.1× | $221K | 46% | |
| TAC | Put | $12.0000 | 12/18/26 (128d) | 16.0× | $222K | 45% |
History
- 2026-08-132 prints$221K calls$222K puts
- 2026-08-122 prints$221K calls$222K puts
- 2026-06-051 prints$307K calls$0K puts
- 2026-06-041 prints$307K calls$0K puts
- 2026-05-221 prints$36K calls$0K puts
- 2026-04-201 prints$93K calls$0K puts
- 2026-02-271 prints$413K calls$0K puts
- 2026-02-261 prints$173K calls$0K puts
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