Options Chain for TRANSALTA CORP COM (TAC) - $17.04 as of 10/16/2025 11:43:13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.00 | 11.90 | 14.30 | 13.10 | % | 3.27 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 5.00 | 10.90 | 13.30 | 12.10 | % | 2.42 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 6.00 | 10.40 | 12.40 | 11.40 | % | 1.90 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 7.00 | 9.40 | 11.40 | 10.40 | % | 1.49 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 8.00 | 8.40 | 9.80 | 9.10 | 9.00 | 0.00 | 0.00% | 1.14 | 0 | 2 | 0.00 | 1.00 | 0.00 | 0.00 | 10/13/2025 | 10/16/2025 9:59:00 AM EST |
| 9.00 | 7.40 | 8.90 | 8.15 | % | 0.91 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 10.00 | 5.10 | 8.40 | 6.75 | % | 0.68 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 11.00 | 5.50 | 6.70 | 6.10 | % | 0.55 | 0 | 0 | 9.61 | 1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 12.00 | 4.50 | 5.70 | 5.10 | 4.85 | 0.00 | 0.00% | 0.42 | 0 | 11 | 7.88 | 1.00 | 0.00 | 0.00 | 10/14/2025 | 10/16/2025 9:59:00 AM EST |
| 13.00 | 3.50 | 4.70 | 4.10 | 4.01 | 0.00 | 0.00% | 0.32 | 0 | 21 | 6.67 | 1.00 | 0.01 | 0.00 | 10/13/2025 | 10/16/2025 9:59:00 AM EST |
| 14.00 | 2.40 | 3.20 | 2.80 | 3.00 | +0.25 | +9.10% | 0.20 | 120 | 205 | 4.84 | 0.97 | 0.04 | -0.02 | 10/16/2025 | 10/16/2025 9:59:00 AM EST |
| 15.00 | 1.45 | 1.90 | 1.68 | 2.00 | -0.25 | -11.12% | 0.11 | 50 | 522 | 3.47 | 0.87 | 0.11 | -0.09 | 10/16/2025 | 10/16/2025 9:59:00 AM EST |
| 16.00 | 0.75 | 1.00 | 0.88 | 0.98 | -0.24 | -19.68% | 0.06 | 104 | 1,644 | 1.33 | 0.69 | 0.21 | -0.21 | 10/16/2025 | 10/16/2025 9:59:00 AM EST |
| 17.00 | 0.30 | 0.55 | 0.43 | 0.36 | -0.26 | -41.94% | 0.03 | 91 | 356 | 1.40 | 0.43 | 0.26 | -0.25 | 10/16/2025 | 10/16/2025 9:59:00 AM EST |
| 18.00 | 0.10 | 0.20 | 0.15 | 0.15 | -0.10 | -40.00% | 0.01 | 176 | 2,647 | 1.46 | 0.22 | 0.20 | -0.20 | 10/16/2025 | 10/16/2025 9:59:00 AM EST |
| 19.00 | 0.05 | 0.15 | 0.10 | 0.05 | -0.06 | -54.55% | 0.01 | 5 | 348 | 1.78 | 0.09 | 0.12 | -0.08 | 10/16/2025 | 10/16/2025 9:59:00 AM EST |
| 20.00 | 0.00 | 0.10 | 0.05 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 313 | 2.21 | 0.03 | 0.05 | -0.02 | 10/15/2025 | 10/16/2025 9:59:00 AM EST |
| 21.00 | 0.00 | 0.10 | 0.05 | 0.03 | 0.00 | 0.00% | 0.00 | 0 | 100 | 2.65 | 0.01 | 0.02 | -0.01 | 10/15/2025 | 10/16/2025 9:59:00 AM EST |
| 22.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 5.66 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 23.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 6.15 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 24.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 6.61 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 25.00 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 7.04 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.00 | 0.00 | 1.00 | 0.50 | % | 0.12 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 5.00 | 0.00 | 1.00 | 0.50 | % | 0.10 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 6.00 | 0.00 | 0.75 | 0.38 | % | 0.06 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 7.00 | 0.00 | 1.00 | 0.50 | % | 0.07 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 8.00 | 0.00 | 1.00 | 0.50 | % | 0.06 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 9.00 | 0.00 | 1.00 | 0.50 | % | 0.06 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 10.00 | 0.00 | 1.00 | 0.50 | % | 0.05 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 11.00 | 0.00 | 1.00 | 0.50 | 0.05 | 0.00 | 0.00% | 0.05 | 0 | 500 | 9.71 | 0.00 | 0.00 | 0.00 | 9/26/2025 | 10/16/2025 9:59:00 AM EST |
| 12.00 | 0.00 | 0.20 | 0.10 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 110 | 4.66 | 0.00 | 0.00 | 0.00 | 10/10/2025 | 10/16/2025 9:59:00 AM EST |
| 13.00 | 0.00 | 1.00 | 0.50 | 0.05 | 0.00 | 0.00% | 0.04 | 0 | 42 | 7.12 | 0.00 | 0.01 | 0.00 | 10/13/2025 | 10/16/2025 9:59:00 AM EST |
| 14.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 409 | 2.05 | -0.03 | 0.04 | -0.02 | 10/13/2025 | 10/16/2025 9:59:00 AM EST |
| 15.00 | 0.00 | 0.10 | 0.05 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 64 | 1.71 | -0.13 | 0.11 | -0.09 | 10/15/2025 | 10/16/2025 9:59:00 AM EST |
| 16.00 | 0.05 | 0.25 | 0.15 | 0.19 | 0.00 | 0.00% | 0.01 | 0 | 261 | 1.14 | -0.31 | 0.21 | -0.21 | 10/15/2025 | 10/16/2025 9:59:00 AM EST |
| 17.00 | 0.50 | 0.70 | 0.60 | 0.60 | +0.05 | +9.10% | 0.04 | 4 | 263 | 1.12 | -0.57 | 0.26 | -0.25 | 10/16/2025 | 10/16/2025 9:59:00 AM EST |
| 18.00 | 1.30 | 1.55 | 1.43 | 1.25 | 0.00 | 0.00% | 0.08 | 0 | 2 | 1.11 | -0.78 | 0.20 | -0.20 | 10/13/2025 | 10/16/2025 9:59:00 AM EST |
| 19.00 | 1.80 | 2.65 | 2.23 | 3.40 | 0.00 | 0.00% | 0.12 | 0 | 21 | 2.59 | -0.91 | 0.12 | -0.08 | 10/10/2025 | 10/16/2025 9:59:00 AM EST |
| 20.00 | 2.80 | 3.50 | 3.15 | % | 0.16 | 0 | 0 | 2.80 | -0.97 | 0.05 | -0.02 | 10/16/2025 9:59:00 AM EST | |||
| 21.00 | 3.30 | 4.50 | 3.90 | 5.40 | 0.00 | 0.00% | 0.19 | 0 | 1 | 3.71 | -0.99 | 0.02 | -0.01 | 10/10/2025 | 10/16/2025 9:59:00 AM EST |
| 22.00 | 4.30 | 5.50 | 4.90 | % | 0.22 | 0 | 0 | 4.19 | -1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 23.00 | 5.10 | 6.60 | 5.85 | % | 0.25 | 0 | 0 | 5.03 | -1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 24.00 | 6.40 | 7.40 | 6.90 | % | 0.29 | 0 | 0 | 5.45 | -1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST | |||
| 25.00 | 7.50 | 9.40 | 8.45 | % | 0.34 | 0 | 0 | 5.84 | -1.00 | 0.00 | 0.00 | 10/16/2025 9:59:00 AM EST |