Options Chain for TRANSALTA CORP COM (TAC) - $12.73 as of 12/26/2025 1:57:20 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.00 | 6.00 | 7.40 | 6.70 | % | 1.12 | 0 | 0 | 2.01 | 1.00 | 0.00 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 7.00 | 5.10 | 6.30 | 5.70 | % | 0.81 | 0 | 0 | 1.56 | 1.00 | 0.00 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 8.00 | 4.20 | 5.40 | 4.80 | % | 0.60 | 0 | 0 | 1.39 | 1.00 | 0.01 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 9.00 | 3.20 | 4.40 | 3.80 | % | 0.42 | 0 | 0 | 1.13 | 0.98 | 0.02 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 10.00 | 2.30 | 3.50 | 2.90 | % | 0.29 | 0 | 0 | 0.98 | 0.93 | 0.06 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 11.00 | 1.70 | 4.00 | 2.85 | % | 0.26 | 0 | 0 | 1.64 | 0.82 | 0.11 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 12.00 | 1.15 | 1.80 | 1.48 | % | 0.12 | 0 | 0 | 0.49 | 0.68 | 0.14 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 13.00 | 0.65 | 1.25 | 0.95 | 0.88 | 0.00 | 0.00% | 0.07 | 0 | 10 | 0.50 | 0.53 | 0.15 | -0.01 | 12/23/2025 | 12/26/2025 3:59:56 PM EST |
| 14.00 | 0.45 | 0.90 | 0.68 | 0.60 | +0.06 | +11.12% | 0.05 | 35 | 10 | 0.54 | 0.39 | 0.14 | -0.01 | 12/26/2025 | 12/26/2025 3:59:56 PM EST |
| 15.00 | 0.05 | 0.95 | 0.50 | 0.27 | 0.00 | 0.00% | 0.03 | 0 | 9 | 0.55 | 0.29 | 0.12 | -0.01 | 12/23/2025 | 12/26/2025 3:59:56 PM EST |
| 16.00 | 0.00 | 0.95 | 0.48 | % | 0.03 | 0 | 0 | 0.97 | 0.19 | 0.10 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 17.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 0.97 | 0.13 | 0.07 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 18.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 1.07 | 0.08 | 0.05 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 19.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 1.16 | 0.05 | 0.04 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 20.00 | 0.00 | 0.35 | 0.18 | 0.07 | % | 0.01 | 30 | 0 | 0.96 | 0.04 | 0.03 | 0.00 | 12/26/2025 | 12/26/2025 3:59:56 PM EST | |
| 21.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 1.31 | 0.02 | 0.02 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 22.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 1.38 | 0.01 | 0.01 | 0.00 | 12/26/2025 3:59:56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.00 | 0.00 | 0.75 | 0.38 | % | 0.06 | 0 | 0 | 2.22 | 0.00 | 0.00 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 7.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 1.86 | 0.00 | 0.00 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 8.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 1.56 | 0.00 | 0.01 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 9.00 | 0.00 | 0.75 | 0.38 | % | 0.04 | 0 | 0 | 1.29 | -0.02 | 0.02 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 10.00 | 0.00 | 0.75 | 0.38 | % | 0.04 | 0 | 0 | 1.04 | -0.07 | 0.06 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 11.00 | 0.00 | 0.75 | 0.38 | % | 0.03 | 0 | 0 | 0.81 | -0.18 | 0.11 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 12.00 | 0.25 | 1.00 | 0.63 | 0.82 | 0.00 | 0.00% | 0.05 | 0 | 1 | 0.52 | -0.32 | 0.14 | -0.01 | 12/23/2025 | 12/26/2025 3:59:56 PM EST |
| 13.00 | 0.75 | 1.45 | 1.10 | 1.19 | 0.00 | 0.00% | 0.08 | 0 | 1 | 0.52 | -0.47 | 0.15 | -0.01 | 12/18/2025 | 12/26/2025 3:59:56 PM EST |
| 14.00 | 1.35 | 2.30 | 1.83 | % | 0.13 | 0 | 0 | 0.56 | -0.61 | 0.14 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 15.00 | 2.10 | 3.20 | 2.65 | % | 0.18 | 0 | 0 | 0.90 | -0.71 | 0.12 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 16.00 | 2.90 | 4.00 | 3.45 | % | 0.22 | 0 | 0 | 0.93 | -0.81 | 0.10 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 17.00 | 3.70 | 5.00 | 4.35 | % | 0.26 | 0 | 0 | 1.04 | -0.87 | 0.07 | -0.01 | 12/26/2025 3:59:56 PM EST | |||
| 18.00 | 4.80 | 5.90 | 5.35 | % | 0.30 | 0 | 0 | 1.08 | -0.92 | 0.05 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 19.00 | 5.60 | 7.10 | 6.35 | % | 0.33 | 0 | 0 | 1.29 | -0.95 | 0.04 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 20.00 | 6.60 | 8.10 | 7.35 | % | 0.37 | 0 | 0 | 1.38 | -0.96 | 0.03 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 21.00 | 7.60 | 9.10 | 8.35 | % | 0.40 | 0 | 0 | 1.45 | -0.98 | 0.02 | 0.00 | 12/26/2025 3:59:56 PM EST | |||
| 22.00 | 8.60 | 10.10 | 9.35 | % | 0.42 | 0 | 0 | 1.53 | -0.99 | 0.01 | 0.00 | 12/26/2025 3:59:56 PM EST |