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 Option Overview
Overview for all option chains of TAC. As of September 28, 2025, TAC options have an IV of 114.69% and an IV rank of 83.73%. The volume is 2,502 contracts, which is 423.35% of average daily volume of 591 contracts. The volume put-call ratio is 0, indicating a bullish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
114.69%IV Rank
83.73%Historical Volatility
24.98%IV Low
30.93% on Nov 15, 2024IV High
130.97% on Sep 26, 2025Open Interest (OI)
Today's Open Interest
22,968Put-Call Ratio
0.03Put Open Interest
703Call Open Interest
22,265Open Interest Avg (30-day)
17,107Today vs Open Interest Avg (30-day)
134.26%Option Volume
Today's Volume
2,502Put-Call Ratio
0Put Volume
2,502Call Volume
0Volume Avg (30-day)
591Today vs Volume Avg (30-day)
423.35%Option Chain Statistics
This table provides a comprehensive overview of all TAC options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Oct 17, 2025 | 0 | 500 | 0 | 330 | 251 | 0.76 | 114.69% | 13 |
| Nov 21, 2025 | 0 | 2,000 | 0 | 17,755 | 253 | 0.01 | 65.06% | 10 |
| Dec 19, 2025 | 0 | 2 | 0 | 3,974 | 23 | 0.01 | 66.81% | 8 |
| Jan 16, 2026 | 0 | 0 | 0 | 3 | 0 | 0 | 27.35% | 97.5 |
| Mar 20, 2026 | 0 | 0 | 0 | 203 | 176 | 0.87 | 46.97% | 12 |