Options Chain for TRANSALTA CORP COM (TAC) - $13.45 as of 7/28/2026 3:38:34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.00 | 8.40 | 11.80 | 10.10 | 10.00 | 0.00 | 0.00% | 3.37 | 0 | 2 | 0.00 | 1.00 | 0.00 | 0.00 | 6/5/2026 | 7/28/2026 2:58:53 PM EST |
| 5.00 | 6.40 | 9.80 | 8.10 | 8.80 | 0.00 | 0.00% | 1.62 | 0 | 10 | 6.52 | 1.00 | 0.00 | 0.00 | 5/22/2026 | 7/28/2026 2:58:53 PM EST |
| 6.00 | 6.20 | 8.30 | 7.25 | % | 1.21 | 0 | 0 | 4.62 | 1.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 7.00 | 4.40 | 7.90 | 6.15 | 7.06 | 0.00 | 0.00% | 0.88 | 0 | 1 | 4.75 | 1.00 | 0.00 | 0.00 | 4/9/2026 | 7/28/2026 2:58:53 PM EST |
| 8.00 | 4.00 | 6.60 | 5.30 | % | 0.66 | 0 | 1 | 3.68 | 1.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 9.00 | 3.60 | 4.90 | 4.25 | 4.30 | 0.00 | 0.00% | 0.47 | 0 | 0 | 2.33 | 0.99 | 0.01 | 0.00 | 3/27/2026 | 7/28/2026 2:58:53 PM EST |
| 10.00 | 2.70 | 4.70 | 3.70 | 4.11 | 0.00 | 0.00% | 0.37 | 0 | 12 | 2.70 | 0.96 | 0.04 | -0.01 | 7/24/2026 | 7/28/2026 2:58:53 PM EST |
| 11.00 | 1.80 | 3.20 | 2.50 | 2.20 | 0.00 | 0.00% | 0.23 | 0 | 2 | 1.79 | 0.87 | 0.11 | -0.01 | 5/1/2026 | 7/28/2026 2:58:53 PM EST |
| 12.00 | 1.05 | 1.95 | 1.50 | 2.25 | 0.00 | 0.00% | 0.12 | 0 | 23 | 0.79 | 0.71 | 0.19 | -0.02 | 7/23/2026 | 7/28/2026 2:58:53 PM EST |
| 13.00 | 0.30 | 0.70 | 0.50 | 0.60 | -0.40 | -40.00% | 0.04 | 1 | 357 | 0.55 | 0.50 | 0.22 | -0.02 | 7/28/2026 | 7/28/2026 2:58:53 PM EST |
| 14.00 | 0.05 | 0.45 | 0.25 | 0.40 | -0.20 | -33.34% | 0.02 | 6 | 123 | 0.47 | 0.30 | 0.19 | -0.01 | 7/28/2026 | 7/28/2026 2:58:53 PM EST |
| 15.00 | 0.10 | 0.40 | 0.25 | 0.15 | -0.12 | -44.45% | 0.02 | 160 | 4,640 | 0.56 | 0.16 | 0.13 | -0.01 | 7/28/2026 | 7/28/2026 2:58:53 PM EST |
| 16.00 | 0.00 | 0.70 | 0.35 | 0.25 | 0.00 | 0.00% | 0.02 | 0 | 286 | 0.58 | 0.07 | 0.08 | -0.01 | 7/22/2026 | 7/28/2026 2:58:53 PM EST |
| 17.00 | 0.00 | 0.20 | 0.10 | 0.05 | -0.07 | -58.34% | 0.01 | 4 | 970 | 0.76 | 0.03 | 0.04 | 0.00 | 7/28/2026 | 7/28/2026 2:58:53 PM EST |
| 18.00 | 0.00 | 0.15 | 0.08 | 0.20 | 0.00 | 0.00% | 0.00 | 0 | 290 | 0.76 | 0.01 | 0.02 | 0.00 | 6/17/2026 | 7/28/2026 2:58:53 PM EST |
| 19.00 | 0.00 | 1.95 | 0.98 | % | 0.05 | 0 | 0 | 2.76 | 0.00 | 0.01 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 20.00 | 0.00 | 0.95 | 0.48 | 0.07 | 0.00 | 0.00% | 0.02 | 0 | 1,732 | 2.07 | 0.00 | 0.00 | 0.00 | 7/7/2026 | 7/28/2026 2:58:53 PM EST |
| 21.00 | 0.00 | 0.15 | 0.08 | 0.08 | 0.00 | 0.00% | 0.00 | 0 | 50 | 1.26 | 0.00 | 0.00 | 0.00 | 6/24/2026 | 7/28/2026 2:58:53 PM EST |
| 22.00 | 0.00 | 0.15 | 0.08 | 0.06 | 0.00 | 0.00% | 0.00 | 0 | 95 | 1.35 | 0.00 | 0.00 | 0.00 | 5/14/2026 | 7/28/2026 2:58:53 PM EST |
| 25.00 | 0.00 | 0.50 | 0.25 | 0.16 | 0.00 | 0.00% | 0.01 | 0 | 316 | 2.11 | 0.00 | 0.00 | 0.00 | 4/15/2026 | 7/28/2026 2:58:53 PM EST |
| 30.00 | 0.00 | 0.75 | 0.38 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 2 | 2.76 | 0.00 | 0.00 | 0.00 | 6/26/2026 | 7/28/2026 2:58:53 PM EST |
| 35.00 | 0.00 | 0.20 | 0.10 | 0.06 | 0.00 | 0.00% | 0.00 | 0 | 1,387 | 2.25 | 0.00 | 0.00 | 0.00 | 5/26/2026 | 7/28/2026 2:58:53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.00 | 0.00 | 0.10 | 0.05 | % | 0.02 | 0 | 0 | 3.41 | 0.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 5.00 | 0.00 | 0.10 | 0.05 | % | 0.01 | 0 | 0 | 2.28 | 0.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 6.00 | 0.00 | 0.10 | 0.05 | % | 0.01 | 0 | 0 | 1.88 | 0.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 7.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 2.84 | 0.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 8.00 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 1 | 2.38 | 0.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 9.00 | 0.00 | 0.75 | 0.38 | % | 0.04 | 0 | 0 | 1.97 | -0.01 | 0.01 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 10.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 1 | 1,098 | 0.64 | -0.04 | 0.04 | -0.01 | 7/28/2026 | 7/28/2026 2:58:53 PM EST |
| 11.00 | 0.00 | 0.30 | 0.15 | 0.54 | 0.00 | 0.00% | 0.01 | 0 | 5 | 0.61 | -0.13 | 0.11 | -0.01 | 6/5/2026 | 7/28/2026 2:58:53 PM EST |
| 12.00 | 0.00 | 0.45 | 0.23 | 0.35 | -0.55 | -61.12% | 0.02 | 1 | 25 | 0.68 | -0.29 | 0.19 | -0.02 | 7/28/2026 | 7/28/2026 2:58:53 PM EST |
| 13.00 | 0.45 | 1.95 | 1.20 | 0.82 | +0.27 | +49.10% | 0.09 | 2 | 1,000 | 0.57 | -0.50 | 0.22 | -0.02 | 7/28/2026 | 7/28/2026 2:58:53 PM EST |
| 14.00 | 0.80 | 1.70 | 1.25 | 0.80 | 0.00 | 0.00% | 0.09 | 0 | 11 | 0.75 | -0.70 | 0.19 | -0.01 | 7/23/2026 | 7/28/2026 2:58:53 PM EST |
| 15.00 | 0.60 | 4.30 | 2.45 | 1.40 | 0.00 | 0.00% | 0.16 | 0 | 29 | 2.23 | -0.84 | 0.13 | -0.01 | 7/23/2026 | 7/28/2026 2:58:53 PM EST |
| 16.00 | 2.20 | 3.50 | 2.85 | % | 0.18 | 0 | 0 | 0.96 | -0.93 | 0.08 | -0.01 | 7/28/2026 2:58:53 PM EST | |||
| 17.00 | 3.20 | 4.40 | 3.80 | % | 0.22 | 0 | 1 | 0.99 | -0.97 | 0.04 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 18.00 | 4.20 | 5.40 | 4.80 | % | 0.27 | 0 | 0 | 1.12 | -0.99 | 0.02 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 19.00 | 4.30 | 7.60 | 5.95 | % | 0.31 | 0 | 0 | 2.39 | -1.00 | 0.01 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 20.00 | 5.80 | 7.90 | 6.85 | 5.70 | 0.00 | 0.00% | 0.34 | 0 | 0 | 1.92 | -1.00 | 0.00 | 0.00 | 6/1/2026 | 7/28/2026 2:58:53 PM EST |
| 21.00 | 6.40 | 9.80 | 8.10 | % | 0.39 | 0 | 0 | 2.82 | -1.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 22.00 | 7.30 | 10.10 | 8.70 | % | 0.40 | 0 | 0 | 2.34 | -1.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 25.00 | 10.40 | 13.80 | 12.10 | % | 0.48 | 0 | 0 | 3.25 | -1.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 30.00 | 15.50 | 18.80 | 17.15 | % | 0.57 | 0 | 0 | 3.67 | -1.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST | |||
| 35.00 | 20.40 | 23.70 | 22.05 | % | 0.63 | 0 | 0 | 3.92 | -1.00 | 0.00 | 0.00 | 7/28/2026 2:58:53 PM EST |