Options Chain for TRANSALTA CORP COM (TAC) - $12.40 as of 8/13/2026 9:24:52 AM 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 | 6.80 | 8.90 | 7.85 | 9.14 | 0.00 | 0.00% | 1.57 | 0 | 53 | 2.40 | 0.99 | 0.00 | 0.00 | 6/1/2026 | 8/12/2026 4:00:03 PM EST |
| 6.00 | 4.50 | 7.70 | 6.10 | 6.50 | 0.00 | 0.00% | 1.02 | 0 | 42 | 1.85 | 0.97 | 0.01 | 0.00 | 6/10/2026 | 8/12/2026 4:00:03 PM EST |
| 7.00 | 4.90 | 6.70 | 5.80 | 6.00 | 0.00 | 0.00% | 0.83 | 0 | 7 | 1.55 | 0.96 | 0.02 | 0.00 | 5/11/2026 | 8/12/2026 4:00:03 PM EST |
| 8.00 | 4.00 | 5.80 | 4.90 | 6.30 | 0.00 | 0.00% | 0.61 | 0 | 12 | 1.34 | 0.92 | 0.03 | 0.00 | 6/22/2026 | 8/12/2026 4:00:03 PM EST |
| 9.00 | 3.10 | 4.30 | 3.70 | 4.30 | 0.00 | 0.00% | 0.41 | 0 | 10 | 0.86 | 0.87 | 0.05 | 0.00 | 7/20/2026 | 8/12/2026 4:00:03 PM EST |
| 10.00 | 2.30 | 4.10 | 3.20 | 4.80 | 0.00 | 0.00% | 0.32 | 0 | 11 | 1.04 | 0.79 | 0.06 | -0.01 | 7/8/2026 | 8/12/2026 4:00:03 PM EST |
| 11.00 | 1.80 | 2.85 | 2.33 | 2.35 | 0.00 | 0.00% | 0.21 | 0 | 4 | 0.50 | 0.72 | 0.09 | -0.01 | 5/12/2026 | 8/12/2026 4:00:03 PM EST |
| 12.00 | 1.45 | 1.75 | 1.60 | 1.60 | 0.00 | 0.00% | 0.13 | 0 | 58 | 0.45 | 0.62 | 0.10 | -0.01 | 8/12/2026 | 8/12/2026 4:00:03 PM EST |
| 13.00 | 0.95 | 1.55 | 1.25 | 1.40 | 0.00 | 0.00% | 0.10 | 0 | 311 | 0.48 | 0.51 | 0.11 | -0.01 | 7/31/2026 | 8/12/2026 4:00:03 PM EST |
| 14.00 | 0.70 | 0.90 | 0.80 | 0.99 | 0.00 | 0.00% | 0.06 | 0 | 348 | 0.45 | 0.41 | 0.11 | -0.01 | 8/12/2026 | 8/12/2026 4:00:03 PM EST |
| 15.00 | 0.45 | 0.65 | 0.55 | 0.65 | 0.00 | 0.00% | 0.04 | 0 | 3,468 | 0.45 | 0.32 | 0.10 | -0.01 | 8/12/2026 | 8/12/2026 4:00:03 PM EST |
| 16.00 | 0.10 | 0.95 | 0.53 | 0.49 | 0.00 | 0.00% | 0.03 | 0 | 288 | 0.49 | 0.25 | 0.09 | 0.00 | 8/4/2026 | 8/12/2026 4:00:03 PM EST |
| 17.00 | 0.00 | 0.95 | 0.48 | 0.88 | 0.00 | 0.00% | 0.03 | 0 | 129 | 0.76 | 0.18 | 0.07 | 0.00 | 7/13/2026 | 8/12/2026 4:00:03 PM EST |
| 18.00 | 0.00 | 0.75 | 0.38 | 0.65 | 0.00 | 0.00% | 0.02 | 0 | 28 | 0.74 | 0.14 | 0.06 | 0.00 | 7/16/2026 | 8/12/2026 4:00:03 PM EST |
| 19.00 | 0.00 | 0.75 | 0.38 | 0.47 | 0.00 | 0.00% | 0.02 | 0 | 3 | 0.80 | 0.10 | 0.05 | 0.00 | 5/6/2026 | 8/12/2026 4:00:03 PM EST |
| 20.00 | 0.00 | 0.75 | 0.38 | 0.54 | 0.00 | 0.00% | 0.02 | 0 | 190 | 0.85 | 0.07 | 0.04 | 0.00 | 6/22/2026 | 8/12/2026 4:00:03 PM EST |
| 21.00 | 0.00 | 0.75 | 0.38 | 0.42 | 0.00 | 0.00% | 0.02 | 0 | 41 | 0.90 | 0.05 | 0.03 | 0.00 | 6/5/2026 | 8/12/2026 4:00:03 PM EST |
| 22.00 | 0.00 | 0.75 | 0.38 | 0.37 | 0.00 | 0.00% | 0.02 | 0 | 21 | 0.95 | 0.04 | 0.02 | 0.00 | 6/5/2026 | 8/12/2026 4:00:03 PM EST |
| 25.00 | 0.00 | 0.75 | 0.38 | 0.22 | 0.00 | 0.00% | 0.02 | 0 | 4 | 1.07 | 0.01 | 0.01 | 0.00 | 6/8/2026 | 8/12/2026 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.00 | 0.00 | 0.20 | 0.10 | % | 0.02 | 0 | 0 | 1.14 | -0.01 | 0.00 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 6.00 | 0.00 | 0.35 | 0.18 | % | 0.03 | 0 | 0 | 1.11 | -0.03 | 0.01 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 7.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 1.22 | -0.04 | 0.02 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 8.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 1.02 | -0.08 | 0.03 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 9.00 | 0.00 | 0.95 | 0.48 | % | 0.05 | 0 | 0 | 0.94 | -0.13 | 0.05 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 10.00 | 0.05 | 0.50 | 0.28 | 0.50 | 0.00 | 0.00% | 0.03 | 0 | 43 | 0.41 | -0.21 | 0.06 | -0.01 | 7/29/2026 | 8/12/2026 4:00:03 PM EST |
| 11.00 | 0.50 | 1.25 | 0.88 | % | 0.08 | 0 | 0 | 0.56 | -0.28 | 0.09 | -0.01 | 8/12/2026 4:00:03 PM EST | |||
| 12.00 | 0.95 | 1.15 | 1.05 | 1.11 | 0.00 | 0.00% | 0.09 | 0 | 2,038 | 0.47 | -0.38 | 0.10 | -0.01 | 8/12/2026 | 8/12/2026 4:00:03 PM EST |
| 13.00 | 1.30 | 1.80 | 1.55 | 1.20 | 0.00 | 0.00% | 0.12 | 0 | 35 | 0.45 | -0.49 | 0.11 | -0.01 | 7/8/2026 | 8/12/2026 4:00:03 PM EST |
| 14.00 | 2.00 | 2.50 | 2.25 | % | 0.16 | 0 | 0 | 0.47 | -0.59 | 0.11 | -0.01 | 8/12/2026 4:00:03 PM EST | |||
| 15.00 | 2.55 | 3.70 | 3.13 | % | 0.21 | 0 | 0 | 0.73 | -0.68 | 0.10 | -0.01 | 8/12/2026 4:00:03 PM EST | |||
| 16.00 | 3.30 | 4.50 | 3.90 | % | 0.24 | 0 | 0 | 0.74 | -0.75 | 0.09 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 17.00 | 4.20 | 5.40 | 4.80 | % | 0.28 | 0 | 0 | 0.78 | -0.82 | 0.07 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 18.00 | 5.10 | 6.30 | 5.70 | % | 0.32 | 0 | 0 | 0.82 | -0.86 | 0.06 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 19.00 | 5.80 | 7.30 | 6.55 | 6.70 | 0.00 | 0.00% | 0.34 | 0 | 1 | 0.88 | -0.90 | 0.05 | 0.00 | 5/6/2026 | 8/12/2026 4:00:03 PM EST |
| 20.00 | 6.80 | 8.30 | 7.55 | % | 0.38 | 0 | 0 | 0.94 | -0.93 | 0.04 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 21.00 | 7.70 | 9.20 | 8.45 | % | 0.40 | 0 | 0 | 0.95 | -0.95 | 0.03 | 0.00 | 8/12/2026 4:00:03 PM EST | |||
| 22.00 | 8.70 | 10.20 | 9.45 | 8.08 | 0.00 | 0.00% | 0.43 | 0 | 1 | 1.00 | -0.96 | 0.02 | 0.00 | 6/1/2026 | 8/12/2026 4:00:03 PM EST |
| 25.00 | 11.30 | 13.70 | 12.50 | 12.50 | 0.00 | 0.00% | 0.50 | 0 | 0 | 1.35 | -0.99 | 0.01 | 0.00 | 5/7/2026 | 8/12/2026 4:00:03 PM EST |