TransAlta Corporation (TAC)
NYSE: TAC
· Real-Time Price · USD
12.30
-0.01 (-0.08%)
At close: Aug 21, 2025, 3:59 PM
12.13
-1.42%
After-hours: Aug 21, 2025, 05:46 PM EDT
TAC Open Interest Chart
Open interest breakdown by expiration date for TAC
options contracts. Displaying data for 6
active expiration dates with future expiry.
Total open interest across all expiries is
30,881
contracts, with 23,811
call contracts and
7,070 put contracts. The
overall put-call open interest ratio is
0.30, indicating a
bullish
bias in positioning. Options expire from
Sep 19, 2025
to
Mar 20, 2026.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Sep 19, 2025 | 10,926 | 6,645 | 0.61 |
| Oct 17, 2025 | 4 | 30 | 7.50 |
| Nov 21, 2025 | 10,951 | 206 | 0.02 |
| Dec 19, 2025 | 1,837 | 15 | 0.01 |
| Jan 16, 2026 | 3 | 0 | 0.00 |
| Mar 20, 2026 | 90 | 174 | 1.93 |