Options Chain for TRANSALTA CORP COM (TAC) - $11.97 as of 10/27/2026 5:06:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.00 | 6.90 | 9.00 | 7.95 | 7.20 | 0.00 | 0.00% | 1.59 | 0 | 53 | 3.33 | 1.00 | 0.00 | 0.00 | 9/11/2026 | 10/27/2026 3:59:57 PM EST |
| 6.00 | 5.90 | 7.90 | 6.90 | 6.50 | 0.00 | 0.00% | 1.15 | 0 | 42 | 2.67 | 1.00 | 0.00 | 0.00 | 6/10/2026 | 10/27/2026 3:59:57 PM EST |
| 7.00 | 5.00 | 6.90 | 5.95 | 6.00 | 0.00 | 0.00% | 0.85 | 0 | 7 | 2.25 | 0.99 | 0.01 | 0.00 | 5/11/2026 | 10/27/2026 3:59:57 PM EST |
| 8.00 | 4.00 | 5.10 | 4.55 | 5.10 | 0.00 | 0.00% | 0.57 | 0 | 13 | 1.10 | 0.98 | 0.01 | 0.00 | 10/7/2026 | 10/27/2026 3:59:57 PM EST |
| 9.00 | 3.10 | 4.10 | 3.60 | 4.30 | 0.00 | 0.00% | 0.40 | 0 | 10 | 0.88 | 0.95 | 0.03 | 0.00 | 7/20/2026 | 10/27/2026 3:59:57 PM EST |
| 10.00 | 2.10 | 3.10 | 2.60 | 2.50 | 0.00 | 0.00% | 0.26 | 0 | 11 | 0.68 | 0.88 | 0.07 | -0.01 | 9/10/2026 | 10/27/2026 3:59:57 PM EST |
| 11.00 | 1.35 | 2.25 | 1.80 | 2.25 | 0.00 | 0.00% | 0.16 | 0 | 4 | 0.60 | 0.80 | 0.10 | -0.01 | 10/9/2026 | 10/27/2026 3:59:57 PM EST |
| 12.00 | 1.20 | 1.50 | 1.35 | 1.25 | +0.20 | +19.05% | 0.11 | 3 | 73 | 0.51 | 0.66 | 0.16 | -0.01 | 10/27/2026 | 10/27/2026 3:59:57 PM EST |
| 13.00 | 0.20 | 1.00 | 0.60 | 1.00 | 0.00 | 0.00% | 0.05 | 0 | 326 | 0.39 | 0.47 | 0.19 | -0.01 | 10/21/2026 | 10/27/2026 3:59:57 PM EST |
| 14.00 | 0.20 | 0.75 | 0.48 | 0.41 | 0.00 | 0.00% | 0.03 | 0 | 400 | 0.50 | 0.29 | 0.16 | -0.01 | 10/15/2026 | 10/27/2026 3:59:57 PM EST |
| 15.00 | 0.05 | 0.40 | 0.23 | 0.20 | 0.00 | 0.00% | 0.02 | 0 | 5,719 | 0.46 | 0.19 | 0.12 | 0.00 | 10/23/2026 | 10/27/2026 3:59:57 PM EST |
| 16.00 | 0.00 | 0.75 | 0.38 | 0.25 | 0.00 | 0.00% | 0.02 | 0 | 246 | 0.89 | 0.11 | 0.09 | 0.00 | 10/6/2026 | 10/27/2026 3:59:57 PM EST |
| 17.00 | 0.00 | 0.75 | 0.38 | 0.05 | 0.00 | 0.00% | 0.02 | 0 | 129 | 1.01 | 0.06 | 0.05 | 0.00 | 9/3/2026 | 10/27/2026 3:59:57 PM EST |
| 18.00 | 0.00 | 0.20 | 0.10 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 79 | 0.71 | 0.04 | 0.04 | 0.00 | 10/13/2026 | 10/27/2026 3:59:57 PM EST |
| 19.00 | 0.00 | 0.75 | 0.38 | 0.47 | 0.00 | 0.00% | 0.02 | 0 | 3 | 1.20 | 0.01 | 0.02 | 0.00 | 5/6/2026 | 10/27/2026 3:59:57 PM EST |
| 20.00 | 0.00 | 0.75 | 0.38 | 0.54 | 0.00 | 0.00% | 0.02 | 0 | 190 | 1.28 | 0.01 | 0.01 | 0.00 | 6/22/2026 | 10/27/2026 3:59:57 PM EST |
| 21.00 | 0.00 | 0.75 | 0.38 | 0.05 | 0.00 | 0.00% | 0.02 | 0 | 21 | 1.36 | 0.00 | 0.00 | 0.00 | 9/21/2026 | 10/27/2026 3:59:57 PM EST |
| 22.00 | 0.00 | 0.75 | 0.38 | 0.37 | 0.00 | 0.00% | 0.02 | 0 | 21 | 1.43 | 0.00 | 0.00 | 0.00 | 6/5/2026 | 10/27/2026 3:59:57 PM EST |
| 25.00 | 0.00 | 0.35 | 0.18 | 0.19 | 0.00 | 0.00% | 0.01 | 0 | 4 | 1.30 | 0.00 | 0.00 | 0.00 | 10/16/2026 | 10/27/2026 3:59:57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.00 | 0.00 | 0.75 | 0.38 | % | 0.08 | 0 | 0 | 2.75 | 0.00 | 0.00 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 6.00 | 0.00 | 0.75 | 0.38 | % | 0.06 | 0 | 0 | 2.30 | 0.00 | 0.00 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 7.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 1.93 | -0.01 | 0.01 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 8.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 1.62 | -0.02 | 0.01 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 9.00 | 0.00 | 0.75 | 0.38 | % | 0.04 | 0 | 0 | 1.34 | -0.05 | 0.03 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 10.00 | 0.00 | 0.25 | 0.13 | 0.35 | 0.00 | 0.00% | 0.01 | 0 | 54 | 0.68 | -0.12 | 0.07 | -0.01 | 9/15/2026 | 10/27/2026 3:59:57 PM EST |
| 11.00 | 0.00 | 0.75 | 0.38 | 0.60 | 0.00 | 0.00% | 0.03 | 0 | 5 | 0.84 | -0.20 | 0.10 | -0.01 | 9/15/2026 | 10/27/2026 3:59:57 PM EST |
| 12.00 | 0.30 | 1.05 | 0.68 | 0.93 | 0.00 | 0.00% | 0.06 | 0 | 2,128 | 0.52 | -0.34 | 0.16 | -0.01 | 10/1/2026 | 10/27/2026 3:59:57 PM EST |
| 13.00 | 0.80 | 1.15 | 0.98 | 1.70 | 0.00 | 0.00% | 0.08 | 0 | 40 | 0.40 | -0.53 | 0.19 | -0.01 | 9/14/2026 | 10/27/2026 3:59:57 PM EST |
| 14.00 | 1.45 | 2.30 | 1.88 | % | 0.13 | 0 | 0 | 0.47 | -0.71 | 0.16 | -0.01 | 10/27/2026 3:59:57 PM EST | |||
| 15.00 | 2.20 | 3.30 | 2.75 | 2.38 | 0.00 | 0.00% | 0.18 | 0 | 3 | 0.89 | -0.81 | 0.12 | 0.00 | 10/9/2026 | 10/27/2026 3:59:57 PM EST |
| 16.00 | 2.90 | 4.10 | 3.50 | % | 0.22 | 0 | 0 | 1.02 | -0.89 | 0.09 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 17.00 | 3.90 | 5.00 | 4.45 | % | 0.26 | 0 | 0 | 1.09 | -0.94 | 0.05 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 18.00 | 4.90 | 6.10 | 5.50 | % | 0.31 | 0 | 0 | 1.25 | -0.96 | 0.04 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 19.00 | 5.90 | 7.00 | 6.45 | 6.70 | 0.00 | 0.00% | 0.34 | 0 | 0 | 1.29 | -0.99 | 0.02 | 0.00 | 5/6/2026 | 10/27/2026 3:59:57 PM EST |
| 20.00 | 6.90 | 8.00 | 7.45 | % | 0.37 | 0 | 0 | 1.37 | -0.99 | 0.01 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 21.00 | 7.90 | 9.00 | 8.45 | % | 0.40 | 0 | 0 | 1.46 | -1.00 | 0.00 | 0.00 | 10/27/2026 3:59:57 PM EST | |||
| 22.00 | 8.90 | 10.00 | 9.45 | 8.08 | 0.00 | 0.00% | 0.43 | 0 | 0 | 1.53 | -1.00 | 0.00 | 0.00 | 6/1/2026 | 10/27/2026 3:59:57 PM EST |
| 25.00 | 11.70 | 13.00 | 12.35 | 12.50 | 0.00 | 0.00% | 0.49 | 0 | 0 | 1.73 | -1.00 | 0.00 | 0.00 | 5/7/2026 | 10/27/2026 3:59:57 PM EST |