Options Chain for TRANSALTA CORP COM (TAC) - $13.69 as of 12/15/2025 8:46:11 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 | 11.90 | 14.20 | 13.05 | 13.19 | 0.00 | 0.00% | 13.05 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 11/26/2025 | 12/15/2025 4:00:02 PM EST |
| 2.00 | 10.90 | 13.20 | 12.05 | % | 6.03 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 3.00 | 9.10 | 12.00 | 10.55 | % | 3.52 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 4.00 | 9.10 | 11.00 | 10.05 | 5.18 | 0.00 | 0.00% | 2.51 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 5/21/2025 | 12/15/2025 4:00:02 PM EST |
| 5.00 | 8.10 | 10.00 | 9.05 | % | 1.81 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 6.00 | 6.10 | 9.00 | 7.55 | % | 1.26 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 7.00 | 6.10 | 8.00 | 7.05 | 2.05 | 0.00 | 0.00% | 1.01 | 0 | 0 | 9.29 | 1.00 | 0.00 | 0.00 | 5/7/2025 | 12/15/2025 4:00:02 PM EST |
| 8.00 | 5.10 | 7.00 | 6.05 | 4.60 | 0.00 | 0.00% | 0.76 | 0 | 0 | 7.92 | 1.00 | 0.00 | 0.00 | 8/1/2025 | 12/15/2025 4:00:02 PM EST |
| 9.00 | 4.20 | 5.80 | 5.00 | 7.80 | 0.00 | 0.00% | 0.56 | 0 | 0 | 6.19 | 1.00 | 0.00 | 0.00 | 10/22/2025 | 12/15/2025 4:00:02 PM EST |
| 10.00 | 3.40 | 4.60 | 4.00 | 6.50 | 0.00 | 0.00% | 0.40 | 0 | 20 | 4.68 | 1.00 | 0.00 | 0.00 | 10/17/2025 | 12/15/2025 4:00:02 PM EST |
| 11.00 | 2.60 | 2.75 | 2.68 | 3.40 | 0.00 | 0.00% | 0.24 | 0 | 261 | 1.25 | 1.00 | 0.01 | 0.00 | 12/10/2025 | 12/15/2025 4:00:02 PM EST |
| 12.00 | 1.50 | 2.00 | 1.75 | 1.73 | -0.49 | -22.08% | 0.15 | 1 | 51 | 1.65 | 0.94 | 0.10 | -0.02 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 13.00 | 0.65 | 1.00 | 0.83 | 1.50 | 0.00 | 0.00% | 0.06 | 0 | 169 | 1.02 | 0.75 | 0.27 | -0.05 | 12/10/2025 | 12/15/2025 4:00:02 PM EST |
| 14.00 | 0.10 | 0.85 | 0.48 | 0.22 | -0.13 | -37.15% | 0.03 | 4 | 459 | 1.03 | 0.42 | 0.35 | -0.06 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 15.00 | 0.00 | 0.80 | 0.40 | 0.08 | -0.04 | -33.34% | 0.03 | 238 | 3,052 | 0.83 | 0.15 | 0.21 | -0.03 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 16.00 | 0.00 | 0.05 | 0.03 | 0.05 | +0.01 | +25.00% | 0.00 | 239 | 2,072 | 1.01 | 0.03 | 0.07 | -0.01 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 17.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 473 | 1.29 | 0.01 | 0.01 | 0.00 | 12/12/2025 | 12/15/2025 4:00:02 PM EST |
| 18.00 | 0.00 | 0.05 | 0.03 | 0.05 | +0.02 | +66.67% | 0.00 | 2 | 4,102 | 1.55 | 0.00 | 0.00 | 0.00 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 19.00 | 0.00 | 1.00 | 0.50 | 0.05 | 0.00 | 0.00% | 0.03 | 0 | 945 | 1.79 | 0.00 | 0.00 | 0.00 | 11/28/2025 | 12/15/2025 4:00:02 PM EST |
| 20.00 | 0.00 | 0.05 | 0.03 | 0.03 | 0.00 | 0.00% | 0.00 | 0 | 4,863 | 2.01 | 0.00 | 0.00 | 0.00 | 12/9/2025 | 12/15/2025 4:00:02 PM EST |
| 21.00 | 0.00 | 0.05 | 0.03 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 1,117 | 2.21 | 0.00 | 0.00 | 0.00 | 11/24/2025 | 12/15/2025 4:00:02 PM EST |
| 22.00 | 0.00 | 0.05 | 0.03 | 0.42 | 0.00 | 0.00% | 0.00 | 0 | 21 | 2.40 | 0.00 | 0.00 | 0.00 | 11/5/2025 | 12/15/2025 4:00:02 PM EST |
| 23.00 | 0.00 | 0.05 | 0.03 | 0.55 | 0.00 | 0.00% | 0.00 | 0 | 124 | 2.58 | 0.00 | 0.00 | 0.00 | 10/30/2025 | 12/15/2025 4:00:02 PM EST |
| 24.00 | 0.00 | 0.05 | 0.03 | 0.33 | 0.00 | 0.00% | 0.00 | 0 | 2 | 2.74 | 0.00 | 0.00 | 0.00 | 11/7/2025 | 12/15/2025 4:00:02 PM EST |
| 25.00 | 0.00 | 0.25 | 0.13 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 200 | 3.96 | 0.00 | 0.00 | 0.00 | 11/13/2025 | 12/15/2025 4:00:02 PM EST |
| 30.00 | 0.00 | 0.25 | 0.13 | % | 0.00 | 0 | 0 | 4.78 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 35.00 | 0.00 | 0.25 | 0.13 | % | 0.00 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 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 | 0.25 | 0.13 | % | 0.13 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 2.00 | 0.00 | 0.75 | 0.38 | % | 0.19 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 3.00 | 0.00 | 0.75 | 0.38 | % | 0.13 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 4.00 | 0.00 | 0.75 | 0.38 | % | 0.10 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 5.00 | 0.00 | 0.75 | 0.38 | % | 0.08 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 6.00 | 0.00 | 0.20 | 0.10 | 0.05 | 0.00 | 0.00% | 0.02 | 0 | 10 | 0.00 | 0.00 | 0.00 | 0.00 | 10/13/2025 | 12/15/2025 4:00:02 PM EST |
| 7.00 | 0.00 | 0.75 | 0.38 | 0.12 | 0.00 | 0.00% | 0.05 | 0 | 5 | 7.32 | 0.00 | 0.00 | 0.00 | 6/12/2025 | 12/15/2025 4:00:02 PM EST |
| 8.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 6.20 | 0.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 9.00 | 0.00 | 0.75 | 0.38 | 0.05 | 0.00 | 0.00% | 0.04 | 0 | 350 | 5.22 | 0.00 | 0.00 | 0.00 | 11/13/2025 | 12/15/2025 4:00:02 PM EST |
| 10.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 10 | 1.87 | 0.00 | 0.00 | 0.00 | 12/4/2025 | 12/15/2025 4:00:02 PM EST |
| 11.00 | 0.00 | 0.25 | 0.13 | 0.31 | 0.00 | 0.00% | 0.01 | 0 | 3 | 2.19 | 0.00 | 0.01 | 0.00 | 12/5/2025 | 12/15/2025 4:00:02 PM EST |
| 12.00 | 0.00 | 0.05 | 0.03 | 0.01 | -0.04 | -80.00% | 0.00 | 1 | 9 | 0.94 | -0.06 | 0.10 | -0.02 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 13.00 | 0.05 | 1.15 | 0.60 | 0.15 | +0.05 | +50.00% | 0.05 | 500 | 650 | 0.62 | -0.25 | 0.27 | -0.05 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 14.00 | 0.00 | 0.70 | 0.35 | 0.60 | +0.18 | +42.86% | 0.02 | 1 | 43 | 0.95 | -0.58 | 0.35 | -0.06 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 15.00 | 1.00 | 1.45 | 1.23 | 1.37 | +0.67 | +95.72% | 0.08 | 1 | 72 | 1.02 | -0.85 | 0.21 | -0.03 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 16.00 | 1.65 | 2.60 | 2.13 | 1.92 | 0.00 | 0.00% | 0.13 | 0 | 78 | 1.79 | -0.97 | 0.07 | -0.01 | 12/8/2025 | 12/15/2025 4:00:02 PM EST |
| 17.00 | 3.10 | 3.60 | 3.35 | 3.12 | +0.24 | +8.34% | 0.20 | 20 | 376 | 2.18 | -0.99 | 0.01 | 0.00 | 12/15/2025 | 12/15/2025 4:00:02 PM EST |
| 18.00 | 3.40 | 4.60 | 4.00 | 3.83 | 0.00 | 0.00% | 0.22 | 0 | 36 | 2.52 | -1.00 | 0.00 | 0.00 | 12/12/2025 | 12/15/2025 4:00:02 PM EST |
| 19.00 | 4.40 | 5.60 | 5.00 | % | 0.26 | 0 | 0 | 2.83 | -1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 20.00 | 5.20 | 6.70 | 5.95 | 3.90 | 0.00 | 0.00% | 0.30 | 0 | 2 | 3.38 | -1.00 | 0.00 | 0.00 | 10/13/2025 | 12/15/2025 4:00:02 PM EST |
| 21.00 | 6.20 | 7.70 | 6.95 | 4.65 | 0.00 | 0.00% | 0.33 | 0 | 2 | 3.65 | -1.00 | 0.00 | 0.00 | 10/13/2025 | 12/15/2025 4:00:02 PM EST |
| 22.00 | 7.20 | 8.90 | 8.05 | % | 0.37 | 0 | 0 | 4.42 | -1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 23.00 | 8.20 | 10.90 | 9.55 | % | 0.42 | 0 | 0 | 6.73 | -1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 24.00 | 9.20 | 10.90 | 10.05 | % | 0.42 | 0 | 0 | 4.89 | -1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 25.00 | 10.20 | 11.90 | 11.05 | % | 0.44 | 0 | 0 | 5.11 | -1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 30.00 | 14.80 | 17.10 | 15.95 | % | 0.53 | 0 | 0 | 6.54 | -1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST | |||
| 35.00 | 19.80 | 22.10 | 20.95 | % | 0.60 | 0 | 0 | 7.30 | -1.00 | 0.00 | 0.00 | 12/15/2025 4:00:02 PM EST |