Options Chain for TRANSALTA CORP COM (TAC) - $17.31 as of 10/27/2025 4:10:07 PM EST
Calls
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.00 | 15.20 | 17.80 | 16.50 | % | 16.50 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 2.00 | 14.20 | 16.80 | 15.50 | % | 7.75 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 3.00 | 13.20 | 15.80 | 14.50 | % | 4.83 | 0 | 0 | 6.88 | 1.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 4.00 | 12.20 | 14.80 | 13.50 | 5.18 | 0.00 | 0.00% | 3.38 | 0 | 0 | 5.41 | 1.00 | 0.00 | 0.00 | 5/21/2025 | 10/27/2025 4:00:03 PM EST |
| 5.00 | 11.20 | 13.80 | 12.50 | % | 2.50 | 0 | 0 | 4.50 | 1.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 6.00 | 10.20 | 12.80 | 11.50 | % | 1.92 | 0 | 0 | 3.85 | 1.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 7.00 | 8.30 | 11.80 | 10.05 | 2.05 | 0.00 | 0.00% | 1.44 | 0 | 2 | 3.34 | 1.00 | 0.00 | 0.00 | 5/7/2025 | 10/27/2025 4:00:03 PM EST |
| 8.00 | 7.30 | 10.80 | 9.05 | 4.60 | 0.00 | 0.00% | 1.13 | 0 | 103 | 2.92 | 0.99 | 0.00 | 0.00 | 8/1/2025 | 10/27/2025 4:00:03 PM EST |
| 9.00 | 7.30 | 9.90 | 8.60 | 7.80 | 0.00 | 0.00% | 0.96 | 0 | 49 | 2.64 | 0.99 | 0.01 | 0.00 | 10/22/2025 | 10/27/2025 4:00:03 PM EST |
| 10.00 | 5.10 | 8.70 | 6.90 | 6.50 | 0.00 | 0.00% | 0.69 | 0 | 25 | 2.19 | 0.97 | 0.01 | 0.00 | 10/17/2025 | 10/27/2025 4:00:03 PM EST |
| 11.00 | 6.10 | 6.30 | 6.20 | 5.70 | 0.00 | 0.00% | 0.56 | 0 | 348 | 0.88 | 0.94 | 0.02 | -0.01 | 10/21/2025 | 10/27/2025 4:00:03 PM EST |
| 12.00 | 5.00 | 6.50 | 5.75 | 5.70 | 0.00 | 0.00% | 0.48 | 0 | 43 | 1.56 | 0.91 | 0.03 | -0.01 | 10/13/2025 | 10/27/2025 4:00:03 PM EST |
| 13.00 | 4.10 | 5.30 | 4.70 | 3.83 | 0.00 | 0.00% | 0.36 | 0 | 296 | 1.23 | 0.87 | 0.04 | -0.01 | 10/17/2025 | 10/27/2025 4:00:03 PM EST |
| 14.00 | 3.30 | 4.50 | 3.90 | 3.82 | 0.00 | 0.00% | 0.28 | 0 | 229 | 0.81 | 0.81 | 0.06 | -0.01 | 10/22/2025 | 10/27/2025 4:00:03 PM EST |
| 15.00 | 2.60 | 3.10 | 2.85 | 3.14 | 0.00 | 0.00% | 0.19 | 0 | 2,533 | 0.64 | 0.74 | 0.07 | -0.02 | 10/24/2025 | 10/27/2025 4:00:03 PM EST |
| 16.00 | 2.15 | 2.45 | 2.30 | 2.20 | -0.30 | -12.00% | 0.14 | 8 | 1,465 | 0.67 | 0.66 | 0.09 | -0.02 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 17.00 | 1.45 | 1.90 | 1.68 | 1.70 | -0.29 | -14.58% | 0.10 | 5 | 415 | 0.62 | 0.56 | 0.09 | -0.02 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 18.00 | 1.20 | 1.40 | 1.30 | 1.38 | -0.17 | -10.97% | 0.07 | 8 | 5,067 | 0.64 | 0.47 | 0.09 | -0.02 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 19.00 | 0.80 | 1.30 | 1.05 | 0.80 | -0.25 | -23.81% | 0.06 | 2 | 1,742 | 0.67 | 0.39 | 0.09 | -0.02 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 20.00 | 0.55 | 0.90 | 0.73 | 0.83 | +0.01 | +1.22% | 0.04 | 656 | 6,242 | 0.68 | 0.32 | 0.08 | -0.02 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 21.00 | 0.45 | 1.10 | 0.78 | 0.66 | -0.04 | -5.72% | 0.04 | 15 | 1,593 | 0.75 | 0.26 | 0.07 | -0.01 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 22.00 | 0.25 | 0.90 | 0.58 | 0.57 | 0.00 | 0.00% | 0.03 | 0 | 24 | 0.73 | 0.21 | 0.06 | -0.01 | 10/17/2025 | 10/27/2025 4:00:03 PM EST |
| 23.00 | 0.25 | 0.50 | 0.38 | 0.60 | % | 0.02 | 123 | 0 | 0.70 | 0.17 | 0.06 | -0.01 | 10/27/2025 | 10/27/2025 4:00:03 PM EST | |
| 24.00 | 0.05 | 0.80 | 0.43 | 0.45 | 0.00 | 0.00% | 0.02 | 0 | 2 | 0.75 | 0.14 | 0.05 | -0.01 | 10/22/2025 | 10/27/2025 4:00:03 PM EST |
| 25.00 | 0.00 | 0.75 | 0.38 | 0.35 | 0.00 | 0.00% | 0.02 | 0 | 15 | 1.04 | 0.10 | 0.04 | -0.01 | 10/20/2025 | 10/27/2025 4:00:03 PM EST |
| 30.00 | 0.00 | 0.75 | 0.38 | % | 0.01 | 0 | 0 | 1.32 | 0.02 | 0.01 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 35.00 | 0.00 | 0.75 | 0.38 | % | 0.01 | 0 | 0 | 1.54 | 0.01 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST |
Puts
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.00 | 0.00 | 0.75 | 0.38 | % | 0.38 | 0 | 0 | 9.43 | 0.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 2.00 | 0.00 | 0.75 | 0.38 | % | 0.19 | 0 | 0 | 5.73 | 0.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 3.00 | 0.00 | 0.75 | 0.38 | % | 0.13 | 0 | 0 | 4.44 | 0.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 4.00 | 0.00 | 0.75 | 0.38 | % | 0.10 | 0 | 0 | 3.66 | 0.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 5.00 | 0.00 | 0.75 | 0.38 | % | 0.08 | 0 | 0 | 3.11 | 0.00 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 6.00 | 0.00 | 0.25 | 0.13 | 0.05 | 0.00 | 0.00% | 0.02 | 0 | 10 | 1.95 | 0.00 | 0.00 | 0.00 | 10/13/2025 | 10/27/2025 4:00:03 PM EST |
| 7.00 | 0.00 | 0.75 | 0.38 | 0.12 | 0.00 | 0.00% | 0.05 | 0 | 5 | 2.34 | 0.00 | 0.00 | 0.00 | 6/12/2025 | 10/27/2025 4:00:03 PM EST |
| 8.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 2.05 | -0.01 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 9.00 | 0.00 | 0.75 | 0.38 | % | 0.04 | 0 | 0 | 1.79 | -0.01 | 0.01 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 10.00 | 0.00 | 0.75 | 0.38 | % | 0.04 | 0 | 0 | 1.57 | -0.03 | 0.01 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 11.00 | 0.05 | 0.75 | 0.40 | 0.14 | 0.00 | 0.00% | 0.04 | 0 | 4 | 1.01 | -0.06 | 0.02 | -0.01 | 10/15/2025 | 10/27/2025 4:00:03 PM EST |
| 12.00 | 0.00 | 0.30 | 0.15 | 0.21 | -0.09 | -30.00% | 0.01 | 1 | 2 | 0.84 | -0.09 | 0.03 | -0.01 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 13.00 | 0.00 | 0.75 | 0.38 | 0.70 | 0.00 | 0.00% | 0.03 | 0 | 2 | 1.00 | -0.13 | 0.04 | -0.01 | 10/3/2025 | 10/27/2025 4:00:03 PM EST |
| 14.00 | 0.15 | 0.85 | 0.50 | 0.55 | 0.00 | 0.00% | 0.04 | 0 | 8 | 0.66 | -0.19 | 0.06 | -0.01 | 10/23/2025 | 10/27/2025 4:00:03 PM EST |
| 15.00 | 0.40 | 1.10 | 0.75 | 0.75 | 0.00 | 0.00% | 0.05 | 0 | 38 | 0.65 | -0.26 | 0.07 | -0.02 | 10/24/2025 | 10/27/2025 4:00:03 PM EST |
| 16.00 | 1.00 | 1.70 | 1.35 | 1.25 | -0.02 | -1.58% | 0.08 | 2 | 7 | 0.75 | -0.34 | 0.09 | -0.02 | 10/27/2025 | 10/27/2025 4:00:03 PM EST |
| 17.00 | 1.25 | 1.90 | 1.58 | 1.60 | 0.00 | 0.00% | 0.09 | 0 | 382 | 0.64 | -0.44 | 0.09 | -0.02 | 10/24/2025 | 10/27/2025 4:00:03 PM EST |
| 18.00 | 2.05 | 2.65 | 2.35 | 2.75 | 0.00 | 0.00% | 0.13 | 0 | 86 | 0.72 | -0.53 | 0.09 | -0.02 | 10/22/2025 | 10/27/2025 4:00:03 PM EST |
| 19.00 | 2.25 | 3.40 | 2.83 | % | 0.15 | 0 | 0 | 0.63 | -0.61 | 0.09 | -0.02 | 10/27/2025 4:00:03 PM EST | |||
| 20.00 | 2.90 | 4.00 | 3.45 | 3.90 | 0.00 | 0.00% | 0.17 | 0 | 2 | 0.83 | -0.68 | 0.08 | -0.02 | 10/13/2025 | 10/27/2025 4:00:03 PM EST |
| 21.00 | 3.70 | 4.80 | 4.25 | 4.65 | 0.00 | 0.00% | 0.20 | 0 | 2 | 0.85 | -0.74 | 0.07 | -0.01 | 10/13/2025 | 10/27/2025 4:00:03 PM EST |
| 22.00 | 4.50 | 5.70 | 5.10 | % | 0.23 | 0 | 0 | 0.90 | -0.79 | 0.06 | -0.01 | 10/27/2025 4:00:03 PM EST | |||
| 23.00 | 5.30 | 6.80 | 6.05 | % | 0.26 | 0 | 0 | 1.02 | -0.83 | 0.06 | -0.01 | 10/27/2025 4:00:03 PM EST | |||
| 24.00 | 6.20 | 7.70 | 6.95 | % | 0.29 | 0 | 0 | 1.05 | -0.86 | 0.05 | -0.01 | 10/27/2025 4:00:03 PM EST | |||
| 25.00 | 7.10 | 8.60 | 7.85 | % | 0.31 | 0 | 0 | 1.07 | -0.90 | 0.04 | -0.01 | 10/27/2025 4:00:03 PM EST | |||
| 30.00 | 11.50 | 13.90 | 12.70 | % | 0.42 | 0 | 0 | 1.53 | -0.98 | 0.01 | 0.00 | 10/27/2025 4:00:03 PM EST | |||
| 35.00 | 16.50 | 18.90 | 17.70 | % | 0.51 | 0 | 0 | 1.77 | -0.99 | 0.00 | 0.00 | 10/27/2025 4:00:03 PM EST |