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TA – TransAlta Corporation

Last update: September 16, 2025 at 7:51 a.m.   (Real-time)

  • Last price: 0
  • Net change: 0
  • Bid price: 17.400
  • Ask price: 17.400
  • 30-day historical volatility: 25.86%
Calls Puts
Expiry date Bid price Ask price Last price Net change Open int. Vol. Strike Bid price Ask price Last price Net change Open int. Vol.
Open interest: 23,462
Volume: 0
Open interest: 19,341
Volume: 0
September 26, 2025 (Weekly) 0 0 3.45 0 0 0 14.50 0 0 0.05 0 0 0
September 26, 2025 (Weekly) 0 0 2.96 0 20 0 15.00 0 0 0.06 0 0 0
September 26, 2025 (Weekly) 0 0 2.46 0 0 0 15.50 0 0 0.07 0 0 0
September 26, 2025 (Weekly) 0 0 1.98 0 0 0 16.00 0 0 0.08 0 15 0
September 26, 2025 (Weekly) 0 0 1.52 0 0 0 16.50 0 0 0.11 0 0 0
September 26, 2025 (Weekly) 0 0 1.09 0 0 0 17.00 0 0 0.17 0 0 0
September 26, 2025 (Weekly) 0 0 0.72 0 0 0 17.50 0 0 0.31 0 20 0
September 26, 2025 (Weekly) 0 0 0.44 0 27 0 18.00 0 0 0.54 0 0 0
September 26, 2025 (Weekly) 0 0 0.26 0 0 0 18.50 0 0 0.86 0 0 0
September 26, 2025 (Weekly) 0 0 0.15 0 0 0 19.00 0 0 1.26 0 40 0
September 26, 2025 (Weekly) 0 0 0.10 0 10 0 19.50 0 0 1.71 0 20 0
September 26, 2025 (Weekly) 0 0 0.08 0 0 0 20.00 0 0 2.19 0 0 0
September 26, 2025 (Weekly) 0 0 0.07 0 20 0 20.50 0 0 2.68 0 0 0
September 26, 2025 (Weekly) 0 0 0.06 0 0 0 21.00 0 0 3.20 0 0 0
September 26, 2025 (Weekly) 0 0 0.06 0 20 0 21.50 0 0 3.70 0 0 0
September 26, 2025 (Weekly) 0 0 0.06 0 0 0 22.00 0 0 4.20 0 0 0
October 3, 2025 (Weekly) 0 0 3.50 0 0 0 14.50 0 0 0.06 0 0 0
October 3, 2025 (Weekly) 0 0 2.98 0 0 0 15.00 0 0 0.07 0 0 0
October 3, 2025 (Weekly) 0 0 2.50 0 0 0 15.50 0 0 0.09 0 5 0
October 3, 2025 (Weekly) 0 0 2.06 0 0 0 16.00 0 0 0.12 0 0 0
October 3, 2025 (Weekly) 0 0 1.59 0 0 0 16.50 0 0 0.16 0 5 0
October 3, 2025 (Weekly) 0 0 1.19 0 0 0 17.00 0 0 0.27 0 0 0
October 3, 2025 (Weekly) 0 0 0.84 0 0 0 17.50 0 0 0.42 0 10 0
October 3, 2025 (Weekly) 0 0 0.57 0 35 0 18.00 0 0 0.65 0 20 0
October 3, 2025 (Weekly) 0 0.40 0.37 0 20 0 18.50 0 0 0.96 0 0 0
October 3, 2025 (Weekly) 0 0 0.24 0 5 0 19.00 0 0 1.34 0 0 0
October 3, 2025 (Weekly) 0 0 0.16 0 0 0 19.50 0 0 1.76 0 0 0
October 10, 2025 (Weekly) 0 0 3.50 0 0 0 14.50 0 0 0.08 0 0 0
October 10, 2025 (Weekly) 0 0 3.00 0 0 0 15.00 0 0 0.10 0 0 0
October 10, 2025 (Weekly) 0 0 2.55 0 0 0 15.50 0 0 0.11 0 0 0
October 10, 2025 (Weekly) 0 0 2.10 0 0 0 16.00 0 0 0.15 0 5 0
October 10, 2025 (Weekly) 0 0 1.67 0 0 0 16.50 0 0 0.23 0 0 0
October 10, 2025 (Weekly) 0 0 1.29 0 0 0 17.00 0 0 0.35 0 0 0
October 10, 2025 (Weekly) 0 0 0.95 0 0 0 17.50 0 0 0.52 0 0 0
October 10, 2025 (Weekly) 0 0 0.68 0 0 0 18.00 0 0 0.75 0 0 0
October 10, 2025 (Weekly) 0 0 0.48 0 0 0 18.50 0 0 1.05 0 0 0
October 10, 2025 (Weekly) 0 0 0.33 0 0 0 19.00 0 0 1.41 0 0 0
October 10, 2025 (Weekly) 0 0 0.23 0 0 0 19.50 0 0 1.82 0 0 0
October 24, 2025 (Weekly) 0 0 3.55 0 0 0 14.50 0 0 0.10 0 0 0
October 24, 2025 (Weekly) 0 0 3.10 0 0 0 15.00 0 0 0.12 0 0 0
October 24, 2025 (Weekly) 0 0 2.64 0 0 0 15.50 0 0 0.16 0 17 0
October 24, 2025 (Weekly) 0 0 2.19 0 0 0 16.00 0 0 0.23 0 0 0
October 24, 2025 (Weekly) 0 0 1.79 0 0 0 16.50 0 0 0.33 0 0 0
October 24, 2025 (Weekly) 0 0 1.41 0 0 0 17.00 0 0 0.47 0 12 0
October 24, 2025 (Weekly) 0 0 1.09 0 0 0 17.50 0 0 0.65 0 0 0
October 24, 2025 (Weekly) 0 0 0.83 0 0 0 18.00 0 0 0.88 0 0 0
October 24, 2025 (Weekly) 0 0 0.62 0 32 0 18.50 0 0 1.18 0 0 0
October 24, 2025 (Weekly) 0 0 0.46 0 0 0 19.00 0 0 1.53 0 0 0
October 24, 2025 (Weekly) 0 0 0.35 0 0 0 19.50 0 0 1.92 0 0 0
October 31, 2025 (Weekly) 0 0 2.67 0 0 0 15.50 0 0 0.20 0 0 0
October 31, 2025 (Weekly) 0 0 2.25 0 12 0 16.00 0 0 0.28 0 0 0
October 31, 2025 (Weekly) 0 0 1.86 0 0 0 16.50 0 0 0.39 0 0 0
October 31, 2025 (Weekly) 0 0 1.49 0 0 0 17.00 0 0 0.54 0 0 0
October 31, 2025 (Weekly) 0 0 1.18 0 0 0 17.50 0 0 0.73 0 0 0
October 31, 2025 (Weekly) 0 0 0.91 0 0 0 18.00 0 0 0.97 0 0 0
October 31, 2025 (Weekly) 0 0 0.71 0 0 0 18.50 0 0 1.26 0 0 0
October 31, 2025 (Weekly) 0 0 0.54 0 0 0 19.00 0 0 1.59 0 0 0
October 31, 2025 (Weekly) 0 0 0.41 0 0 0 19.50 0 0 1.99 0 0 0
September 19, 2025 0 0 8.95 0 0 0 9.00 0 0 0.05 0 5 0
September 19, 2025 0 0 8.20 0 0 0 9.75 0 0 0.05 0 5 0
September 19, 2025 0 0 7.95 0 0 0 10.00 0 0 0.05 0 63 0
September 19, 2025 0 0 7.45 0 0 0 10.50 0 0 0.05 0 3 0
September 19, 2025 0 0 6.95 0 0 0 11.00 0 0 0.05 0 104 0
September 19, 2025 0 0 6.45 0 0 0 11.50 0 0 0.05 0 2 0
September 19, 2025 0 0 5.95 0 0 0 12.00 0 0 0.05 0 20 0
September 19, 2025 0 0 5.45 0 0 0 12.50 0 0 0.05 0 0 0
September 19, 2025 0 0 4.95 0 0 0 13.00 0 0 0.05 0 247 0
September 19, 2025 0 0 4.45 0 0 0 13.50 0 0 0.05 0 68 0
September 19, 2025 0 0 3.95 0 3 0 14.00 0 0.25 0.05 0 123 0
September 19, 2025 0 0 3.45 0 0 0 14.50 0 0 0.04 0 204 0
September 19, 2025 0 0 2.94 0 110 0 15.00 0 0 0.04 0 176 0
September 19, 2025 0 0 2.44 0 64 0 15.50 0 0 0.05 0 34 0
September 19, 2025 0 0 1.94 0 346 0 16.00 0 0 0.05 0 791 0
September 19, 2025 0 0 1.45 0 170 0 16.50 0 0 0.06 0 22 0
September 19, 2025 0 0 0.98 0 390 0 17.00 0 0 0.07 0 215 0
September 19, 2025 0 0 0.56 0 319 0 17.50 0 0 0.15 0 152 0
September 19, 2025 0 3.00 0.26 0 357 0 18.00 0 0 0.37 0 41 0
September 19, 2025 0 0.55 0.12 0 1,200 0 18.50 0 0 0.73 0 22 0
September 19, 2025 0 0.09 0.06 0 356 0 19.00 0 0 1.18 0 10 0
September 19, 2025 0 0 0.05 0 0 0 19.50 0 0 1.66 0 0 0
September 19, 2025 0 0 0.05 0 279 0 20.00 0 0 2.17 0 0 0
September 19, 2025 0 0.17 0.05 0 1,490 0 21.00 0 0 3.15 0 12 0
September 19, 2025 0 0 0.05 0 210 0 22.00 0 0 4.15 0 0 0
September 19, 2025 0 0 0.05 0 331 0 23.00 0 0 5.15 0 0 0
September 19, 2025 0 0.12 0.05 0 135 0 24.00 0 0 6.15 0 0 0
October 17, 2025 0 0 8.20 0 0 0 9.75 0 0 0.05 0 5 0
October 17, 2025 0 0 7.95 0 0 0 10.00 0 0 0.05 0 5 0
October 17, 2025 0 0 7.45 0 0 0 10.50 0 0 0.05 0 0 0
October 17, 2025 0 0 6.95 0 0 0 11.00 0 0 0.05 0 12 0
October 17, 2025 0 0 6.45 0 0 0 11.50 0 0 0.05 0 0 0
October 17, 2025 0 0 5.95 0 20 0 12.00 0 0 0.05 0 10 0
October 17, 2025 0 0 5.50 0 10 0 12.50 0 0 0.05 0 0 0
October 17, 2025 0 0 5.00 0 17 0 13.00 0 0 0.05 0 125 0
October 17, 2025 0 0 4.50 0 12 0 13.50 0 0 0.06 0 5 0
October 17, 2025 0 0 4.00 0 212 0 14.00 0 0 0.07 0 19 0
October 17, 2025 0 0 3.50 0 0 0 14.50 0 0 0.09 0 5 0
October 17, 2025 0 0 3.05 0 223 0 15.00 0 0 0.10 0 289 0
October 17, 2025 0.05 0 2.59 0 39 0 15.50 0 0 0.14 0 7 0
October 17, 2025 0 0 2.14 0 45 0 16.00 0 0 0.18 0 45 0
October 17, 2025 0 0 1.72 0 105 0 16.50 0 0 0.28 0 0 0
October 17, 2025 0 0 1.35 0 1,510 0 17.00 0 0 0.41 0 145 0
October 17, 2025 0 0 1.04 0 1,883 0 17.50 0 0 0.59 0 0 0
October 17, 2025 0 0 0.78 0 5,706 0 18.00 0 0 0.82 0 25 0
October 17, 2025 0 0 0.55 0 190 0 18.50 0 0 1.12 0 34 0
October 17, 2025 0 0 0.40 0 75 0 19.00 0 0 1.48 0 24 0
October 17, 2025 0 0 0.29 0 0 0 19.50 0 0 1.88 0 0 0
October 17, 2025 0 0 0.21 0 10 0 20.00 0 0 2.29 0 0 0
October 17, 2025 0 0 0.14 0 100 0 21.00 0 0 3.25 0 10 0
October 17, 2025 0 0 0.10 0 0 0 22.00 0 0 4.20 0 0 0
November 21, 2025 0 0 7.50 0 74 0 10.50 0 0 0.05 0 0 0
November 21, 2025 0 0 7.00 0 0 0 11.00 0 0 0.06 0 0 0
November 21, 2025 0 0 6.55 0 0 0 11.50 0 0 0.06 0 0 0
November 21, 2025 0 0 6.05 0 0 0 12.00 0 0 0.07 0 5 0
November 21, 2025 0 0 5.60 0 5 0 12.50 0 0 0.09 0 5 0
November 21, 2025 0 0 5.10 0 3 0 13.00 0 0 0.10 0 17 0
November 21, 2025 0 0 4.60 0 0 0 13.50 0 0 0.12 0 7 0
November 21, 2025 0 0 4.15 0 10 0 14.00 0 0 0.15 0 5 0
November 21, 2025 0 0 3.70 0 10 0 14.50 0 0 0.18 0 3 0
November 21, 2025 0 0 3.25 0 10 0 15.00 0 0 0.22 0 3 0
November 21, 2025 0 0 2.80 0 12 0 15.50 0 0 0.30 0 0 0
November 21, 2025 0 0 2.39 0 14 0 16.00 0 0 0.40 0 120 0
November 21, 2025 0 0 2.01 0 34 0 16.50 0 0 0.53 0 24 0
November 21, 2025 0 0 1.67 0 226 0 17.00 0 0 0.70 0 42 0
November 21, 2025 0 0 1.37 0 182 0 17.50 0 0 0.89 0 24 0
November 21, 2025 0 0 1.11 0 294 0 18.00 0 0 1.13 0 24 0
November 21, 2025 0 0 0.88 0 134 0 18.50 0 0 1.41 0 12 0
November 21, 2025 0 0 0.71 0 230 0 19.00 0 0 1.73 0 0 0
November 21, 2025 0 0 0.56 0 12 0 19.50 0 0 2.10 0 0 0
November 21, 2025 0 0.63 0.45 0 15 0 20.00 0 0 2.50 0 0 0
November 21, 2025 0 0 0.30 0 2 0 21.00 0 0 3.35 0 0 0
November 21, 2025 0 0 0.21 0 0 0 22.00 0 0 4.30 0 0 0
December 19, 2025 0 0 9.05 0 12 0 9.00 0 0 0.05 0 0 0
December 19, 2025 0 0 8.05 0 30 0 10.00 0 0 0.06 0 243 0
December 19, 2025 0 0 7.05 0 20 0 11.00 0 0 0.08 0 42 0
December 19, 2025 0 0 6.05 0 125 0 12.00 0 0 0.10 0 203 0
December 19, 2025 0 0 5.60 0 0 0 12.50 0 0 0.12 0 5 0
December 19, 2025 0 0 5.10 0 218 0 13.00 0 0 0.15 0 94 0
December 19, 2025 0 0 4.65 0 0 0 13.50 0 0 0.18 0 3 0
December 19, 2025 0 0 4.20 0 396 0 14.00 0.14 0 0.22 0 41 0
December 19, 2025 0 0 3.80 0 0 0 14.50 0 0 0.27 0 0 0
December 19, 2025 0 0 3.35 0 162 0 15.00 0 0 0.33 0 20 0
December 19, 2025 0 0 2.89 0 166 0 15.50 0 0 0.43 0 0 0
December 19, 2025 0 0 2.52 0 201 0 16.00 0 0 0.54 0 93 0
December 19, 2025 0.50 0 2.14 0 372 0 16.50 0 0 0.69 0 0 0
December 19, 2025 0 0 1.82 0 703 0 17.00 0 0 0.87 0 0 0
December 19, 2025 0 0 1.53 0 400 0 17.50 0 0 1.08 0 0 0
December 19, 2025 0 0 1.28 0 302 0 18.00 0.25 0 1.32 0 36 0
December 19, 2025 0 0 1.05 0 2 0 18.50 0 0 1.61 0 0 0
December 19, 2025 0 0 0.87 0 145 0 19.00 0 0 1.92 0 0 0
December 19, 2025 0 0 0.72 0 100 0 19.50 0 0 2.27 0 0 0
December 19, 2025 0 0 0.59 0 112 0 20.00 0 0 2.65 0 0 0
December 19, 2025 0 0.59 0.41 0 12 0 21.00 0 0 3.50 0 0 0
December 19, 2025 0 0 0.29 0 12 0 22.00 0 0 4.40 0 20 0
December 19, 2025 0 0 0.23 0 34 0 23.00 0 0 5.35 0 0 0
December 19, 2025 0 0 0.19 0 80 0 24.00 0 0 6.30 0 0 0
January 16, 2026 0 0 12.00 0 0 0 6.00 0 0 0.05 0 0 0
January 16, 2026 0 0 11.00 0 0 0 7.00 0 0 0.03 0 50 0
January 16, 2026 0 0 10.00 0 163 0 8.00 0 0 0.04 0 31 0
January 16, 2026 0 0 9.05 0 26 0 9.00 0 0 0.05 0 286 0
January 16, 2026 0 0 8.05 0 47 0 10.00 0 0 0.07 0 79 0
January 16, 2026 0 0 6.10 0 272 0 12.00 0 0 0.13 0 48 0
January 16, 2026 0 0 4.30 0 211 0 14.00 0 0 0.27 0 72 0
January 16, 2026 0 0 3.85 0 0 0 14.50 0 0 0.33 0 0 0
January 16, 2026 0 0 3.45 0 0 0 15.00 0 0 0.41 0 0 0
January 16, 2026 0 0 3.00 0 0 0 15.50 0 0 0.52 0 3 0
January 16, 2026 0.10 0 2.63 0 101 0 16.00 0 0 0.65 0 14 0
January 16, 2026 0 0 2.28 0 50 0 16.50 0 0 0.81 0 0 0
January 16, 2026 0 0 1.96 0 40 0 17.00 0 0 0.99 0 5 0
January 16, 2026 0 0 1.67 0 0 0 17.50 0 0 1.20 0 0 0
January 16, 2026 0.10 0 1.42 0 201 0 18.00 0 0 1.45 0 0 0
January 16, 2026 0 0 1.20 0 2 0 18.50 0 0 1.73 0 0 0
January 16, 2026 0 0 1.01 0 83 0 19.00 0 0 2.04 0 20 0
January 16, 2026 0 0 0.85 0 30 0 19.50 0 0 2.38 0 0 0
January 16, 2026 0 0 0.72 0 368 0 20.00 0 0 2.74 0 0 0
January 16, 2026 0 0 0.37 0 17 0 22.00 0 0 4.45 0 0 0
January 16, 2026 0 0 0.24 0 33 0 24.00 0 0 6.35 0 20 0
February 20, 2026 0 0 4.05 0 0 0 14.50 0 0 0.46 0 0 0
February 20, 2026 0 0 3.60 0 0 0 15.00 0 0 0.56 0 0 0
February 20, 2026 0 0 3.25 0 0 0 15.50 0 0 0.69 0 0 0
February 20, 2026 0 0 2.85 0 0 0 16.00 0 0 0.83 0 0 0
February 20, 2026 0 0 2.50 0 0 0 16.50 0 0 1.00 0 0 0
February 20, 2026 0 0 2.20 0 0 0 17.00 0 0 1.19 0 0 0
February 20, 2026 0 0 1.92 0 0 0 17.50 0 0 1.41 0 0 0
February 20, 2026 0 0 1.66 0 0 0 18.00 0 0 1.65 0 0 0
February 20, 2026 0 0 1.44 0 0 0 18.50 0 0 1.93 0 0 0
February 20, 2026 0 0 1.25 0 7 0 19.00 0 0 2.23 0 0 0
February 20, 2026 0 0 1.07 0 52 0 19.50 0 0 2.57 0 0 0
March 20, 2026 0 0 9.05 0 0 0 9.00 0 0 0.08 0 0 0
March 20, 2026 0 0 8.05 0 0 0 10.00 0 0 0.11 0 6 0
March 20, 2026 0 0 7.10 0 3 0 11.00 0 0 0.15 0 4 0
March 20, 2026 0 0 6.20 0 5 0 12.00 0 0 0.23 0 9 0
March 20, 2026 0 0 5.30 0 19 0 13.00 0 0 0.33 0 20 0
March 20, 2026 0 0 4.45 0 0 0 14.00 0 0 0.44 0 4 0
March 20, 2026 0 0 3.65 0 17 0 15.00 0 0 0.65 0 65 0
March 20, 2026 0 0 2.93 0 12 0 16.00 0 0 0.93 0 9 0
March 20, 2026 0 0 2.29 0 55 0 17.00 0 0 1.31 0 0 0
March 20, 2026 0.19 0 1.78 0 12 0 18.00 0 0 1.78 0 0 0
March 20, 2026 0 0 1.36 0 3 0 19.00 0 0 2.36 0 0 0
March 20, 2026 0 0 1.04 0 36 0 20.00 0 0 3.05 0 0 0
March 20, 2026 0 0 0.79 0 0 0 21.00 0 0 3.80 0 0 0
March 20, 2026 0 0 0.62 0 1 0 22.00 0 0 4.65 0 0 0
June 19, 2026 0 0 8.15 0 10 0 10.00 0 0 0.20 0 0 0
June 19, 2026 0 0 6.30 0 0 0 12.00 0 1.20 0.38 0 20 0
June 19, 2026 0 0 5.50 0 0 0 13.00 0 0 0.46 0 0 0
June 19, 2026 0 0 4.70 0 0 0 14.00 0 0 0.70 0 0 0
June 19, 2026 0 0 4.00 0 4 0 15.00 0 0 0.97 0 0 0
June 19, 2026 0 0 3.30 0 7 0 16.00 0 0 1.28 0 0 0
June 19, 2026 0 0 2.72 0 0 0 17.00 0 0 1.69 0 0 0
June 19, 2026 0 0 2.22 0 0 0 18.00 0 0 2.17 0 0 0
June 19, 2026 0 0 1.80 0 15 0 19.00 0 0 2.74 0 0 0
June 19, 2026 0 0 1.46 0 3 0 20.00 0 0 3.40 0 0 0
June 19, 2026 0 0 1.20 0 0 0 21.00 0 0 4.10 0 0 0
June 19, 2026 0 0 0.98 0 43 0 22.00 0 0 4.90 0 0 0
January 15, 2027 0 0 10.15 0 38 0 8.00 0 0 0.22 0 73 0
January 15, 2027 0 0 9.25 0 0 0 9.00 0 0 0.31 0 4,038 0
January 15, 2027 0 0 8.35 0 70 0 10.00 0 0 0.41 0 51 0
January 15, 2027 0 0 6.75 0 61 0 12.00 0 0 0.71 0 13 0
January 15, 2027 0 0 5.30 0 42 0 14.00 0 0 1.21 0 10,015 0
January 15, 2027 0 0 4.05 0 53 0 16.00 0 0 1.91 0 0 0
January 15, 2027 0 0 3.05 0 123 0 18.00 0 0 2.86 0 2 0
January 15, 2027 0 0 2.62 0 0 0 19.00 0 0 3.45 0 0 0
January 15, 2027 0 0 2.26 0 37 0 20.00 0 0 4.05 0 0 0
January 15, 2027 0 0 1.74 0 12 0 22.00 0 0 5.45 0 20 0
January 15, 2027 0 0 1.34 0 47 0 24.00 0 0 7.05 0 0 0
January 21, 2028 0 0 7.30 0 0 0 12.00 0 2.40 1.22 0 10 0
January 21, 2028 0 0 6.05 0 0 0 14.00 0 0 1.85 0 10 0
January 21, 2028 0 0 4.95 0 0 0 16.00 0 0 2.68 0 0 0
January 21, 2028 0 0 4.05 0 2 0 18.00 0 0 3.70 0 0 0
January 21, 2028 0 0 3.30 0 20 0 20.00 0 0 4.85 0 0 0
January 21, 2028 0 0 2.72 0 20 0 22.00 0 0 6.20 0 0 0