Options Chain for TRANSALTA CORP COM (TAC) - $13.45 as of 7/27/2026 9:15:33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.00 | 8.70 | 11.00 | 9.85 | 9.58 | 0.00 | 0.00% | 2.46 | 0 | 2 | 4.89 | 1.00 | 0.00 | 0.00 | 6/11/2026 | 7/27/2026 3:59:53 PM EST |
| 5.00 | 7.70 | 10.00 | 8.85 | 8.16 | 0.00 | 0.00% | 1.77 | 0 | 3 | 4.02 | 1.00 | 0.00 | 0.00 | 5/20/2026 | 7/27/2026 3:59:53 PM EST |
| 6.00 | 6.90 | 8.70 | 7.80 | 7.40 | 0.00 | 0.00% | 1.30 | 0 | 1 | 3.05 | 1.00 | 0.00 | 0.00 | 5/21/2026 | 7/27/2026 3:59:53 PM EST |
| 7.00 | 5.80 | 7.70 | 6.75 | % | 0.96 | 0 | 0 | 2.59 | 1.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 8.00 | 5.10 | 6.30 | 5.70 | % | 0.71 | 0 | 0 | 1.86 | 1.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 9.00 | 4.10 | 5.30 | 4.70 | 3.95 | 0.00 | 0.00% | 0.52 | 0 | 7 | 1.56 | 0.98 | 0.03 | 0.00 | 5/12/2026 | 7/27/2026 3:59:53 PM EST |
| 10.00 | 3.20 | 4.40 | 3.80 | 4.50 | 0.00 | 0.00% | 0.38 | 0 | 21 | 1.36 | 0.92 | 0.06 | 0.00 | 7/8/2026 | 7/27/2026 3:59:53 PM EST |
| 11.00 | 2.30 | 3.50 | 2.90 | 3.45 | 0.00 | 0.00% | 0.26 | 0 | 82 | 1.17 | 0.83 | 0.09 | -0.01 | 7/8/2026 | 7/27/2026 3:59:53 PM EST |
| 12.00 | 0.75 | 3.60 | 2.18 | 2.85 | 0.00 | 0.00% | 0.18 | 0 | 40 | 1.53 | 0.71 | 0.11 | -0.01 | 7/10/2026 | 7/27/2026 3:59:53 PM EST |
| 13.00 | 0.95 | 2.10 | 1.53 | 1.58 | 0.00 | 0.00% | 0.12 | 0 | 325 | 0.68 | 0.59 | 0.13 | -0.01 | 7/16/2026 | 7/27/2026 3:59:53 PM EST |
| 14.00 | 0.50 | 1.10 | 0.80 | 0.85 | -0.18 | -17.48% | 0.06 | 4 | 111 | 0.53 | 0.45 | 0.14 | -0.01 | 7/27/2026 | 7/27/2026 3:59:53 PM EST |
| 15.00 | 0.05 | 1.10 | 0.58 | 0.55 | 0.00 | 0.00% | 0.04 | 0 | 281 | 0.54 | 0.34 | 0.12 | -0.01 | 7/20/2026 | 7/27/2026 3:59:53 PM EST |
| 16.00 | 0.00 | 0.75 | 0.38 | 0.95 | 0.00 | 0.00% | 0.02 | 0 | 105 | 0.80 | 0.24 | 0.10 | -0.01 | 6/3/2026 | 7/27/2026 3:59:53 PM EST |
| 17.00 | 0.00 | 0.75 | 0.38 | 0.35 | 0.00 | 0.00% | 0.02 | 0 | 20 | 0.92 | 0.17 | 0.08 | -0.01 | 6/24/2026 | 7/27/2026 3:59:53 PM EST |
| 18.00 | 0.00 | 2.20 | 1.10 | 0.20 | 0.00 | 0.00% | 0.06 | 0 | 86 | 1.78 | 0.10 | 0.06 | 0.00 | 6/26/2026 | 7/27/2026 3:59:53 PM EST |
| 19.00 | 0.00 | 2.15 | 1.08 | % | 0.06 | 0 | 0 | 1.86 | 0.07 | 0.04 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 20.00 | 0.00 | 2.15 | 1.08 | 0.21 | 0.00 | 0.00% | 0.05 | 0 | 21 | 1.95 | 0.04 | 0.03 | 0.00 | 6/4/2026 | 7/27/2026 3:59:53 PM EST |
| 25.00 | 0.00 | 2.15 | 1.08 | % | 0.04 | 0 | 0 | 2.33 | 0.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.00 | 0.00 | 2.15 | 1.08 | % | 0.27 | 0 | 0 | 5.74 | 0.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 5.00 | 0.00 | 2.15 | 1.08 | % | 0.22 | 0 | 0 | 4.66 | 0.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 6.00 | 0.00 | 2.15 | 1.08 | % | 0.18 | 0 | 0 | 3.91 | 0.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 7.00 | 0.00 | 2.00 | 1.00 | % | 0.14 | 0 | 0 | 3.18 | 0.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 8.00 | 0.00 | 2.15 | 1.08 | % | 0.14 | 0 | 0 | 2.85 | 0.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 9.00 | 0.00 | 2.15 | 1.08 | % | 0.12 | 0 | 0 | 2.44 | -0.02 | 0.03 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 10.00 | 0.00 | 2.20 | 1.10 | % | 0.11 | 0 | 0 | 2.12 | -0.08 | 0.06 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 11.00 | 0.00 | 0.75 | 0.38 | 0.30 | 0.00 | 0.00% | 0.03 | 0 | 1 | 0.91 | -0.17 | 0.09 | -0.01 | 6/29/2026 | 7/27/2026 3:59:53 PM EST |
| 12.00 | 0.05 | 0.85 | 0.45 | 0.56 | 0.00 | 0.00% | 0.04 | 0 | 16 | 0.56 | -0.29 | 0.11 | -0.01 | 7/20/2026 | 7/27/2026 3:59:53 PM EST |
| 13.00 | 0.25 | 1.40 | 0.83 | 0.59 | 0.00 | 0.00% | 0.06 | 0 | 10 | 0.49 | -0.41 | 0.13 | -0.01 | 6/26/2026 | 7/27/2026 3:59:53 PM EST |
| 14.00 | 0.65 | 3.30 | 1.98 | 2.69 | 0.00 | 0.00% | 0.14 | 0 | 0 | 1.45 | -0.55 | 0.14 | -0.01 | 3/24/2026 | 7/27/2026 3:59:53 PM EST |
| 15.00 | 0.65 | 3.60 | 2.13 | 1.96 | 0.00 | 0.00% | 0.14 | 0 | 3 | 1.27 | -0.66 | 0.12 | -0.01 | 7/16/2026 | 7/27/2026 3:59:53 PM EST |
| 16.00 | 2.10 | 3.30 | 2.70 | % | 0.17 | 0 | 0 | 0.74 | -0.76 | 0.10 | -0.01 | 7/27/2026 3:59:53 PM EST | |||
| 17.00 | 2.90 | 4.10 | 3.50 | % | 0.21 | 0 | 0 | 0.74 | -0.83 | 0.08 | -0.01 | 7/27/2026 3:59:53 PM EST | |||
| 18.00 | 3.80 | 5.20 | 4.50 | % | 0.25 | 0 | 0 | 0.90 | -0.90 | 0.06 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 19.00 | 4.80 | 6.20 | 5.50 | 6.60 | 0.00 | 0.00% | 0.29 | 0 | 0 | 0.99 | -0.93 | 0.04 | 0.00 | 5/6/2026 | 7/27/2026 3:59:53 PM EST |
| 20.00 | 5.60 | 7.30 | 6.45 | % | 0.32 | 0 | 0 | 1.14 | -0.96 | 0.03 | 0.00 | 7/27/2026 3:59:53 PM EST | |||
| 25.00 | 10.10 | 12.50 | 11.30 | % | 0.45 | 0 | 0 | 1.63 | -1.00 | 0.00 | 0.00 | 7/27/2026 3:59:53 PM EST |