TransAlta Corporation (TAC)
NYSE: TAC
· Real-Time Price · USD
13.62
0.13 (1.00%)
At close: Sep 26, 2025, 3:59 PM
13.62
-0.03%
After-hours: Sep 26, 2025, 06:25 PM EDT
TAC Open Interest Chart
Open interest breakdown by expiration date for TAC
options contracts. Displaying data for 5
active expiration dates with future expiry.
Total open interest across all expiries is
22,968
contracts, with 22,265
call contracts and
703 put contracts.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Oct 17, 2025 | 330 | 251 | 0.76 |
| Nov 21, 2025 | 17,755 | 253 | 0.01 |
| Dec 19, 2025 | 3,974 | 23 | 0.01 |
| Jan 16, 2026 | 3 | 0 | 0.00 |
| Mar 20, 2026 | 203 | 176 | 0.87 |