TransAlta Corporation (TAC)
NYSE: TAC
· Real-Time Price · USD
12.44
-0.06 (-0.48%)
At close: Aug 15, 2025, 12:08 PM
TAC Option Overview
Overview for all option chains of TAC. As of August 15, 2025, TAC options have an IV of 348.21% and an IV rank of 326.97%. The volume is 56 contracts, which is 11.16% of average daily volume of 502 contracts. The volume put-call ratio is 1.55, indicating a bearish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
348.21%IV Rank
326.97%Historical Volatility
32.52%IV Low
30.93% on Nov 15, 2024IV High
127.97% on Aug 13, 2025Open Interest (OI)
Today's Open Interest
32,178Put-Call Ratio
0.31Put Open Interest
7,685Call Open Interest
24,493Open Interest Avg (30-day)
26,915Today vs Open Interest Avg (30-day)
119.55%Option Volume
Today's Volume
56Put-Call Ratio
1.55Put Volume
34Call Volume
22Volume Avg (30-day)
502Today vs Volume Avg (30-day)
11.16%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 |
| Aug 15, 2025 | 0 | 0 | 0 | 719 | 627 | 0.87 | 348.21% | 12 |
| Sep 19, 2025 | 17 | 1 | 0.06 | 10,928 | 6,646 | 0.61 | 97.27% | 11 |
| Oct 17, 2025 | 4 | 0 | 0 | 0 | 0 | 0 | 54.28% | 4 |
| Nov 21, 2025 | 0 | 33 | 0 | 10,947 | 223 | 0.02 | 45.18% | 10 |
| Dec 19, 2025 | 1 | 0 | 0 | 1,811 | 15 | 0.01 | 44.8% | 7 |
| Jan 16, 2026 | 0 | 0 | 0 | 3 | 0 | 0 | 27.35% | 97.5 |
| Mar 20, 2026 | 0 | 0 | 0 | 85 | 174 | 2.05 | 40.31% | 12 |