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ALA – AltaGas Ltd.

Last update: August 31, 2025 at 11:52 a.m.   (Real-time)

  • Last price: 40.710
  • Net change: -0.110
  • Bid price: 40.580
  • Ask price: 40.840
  • 30-day historical volatility: 13.38%
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: 8,462
Volume: 19
Open interest: 1,819
Volume: 39
September 5, 2025 (Weekly) 2.67 2.80 2.80 0 0 0 38.00 0 0.07 0.07 0 0 0
September 5, 2025 (Weekly) 2.17 2.30 2.30 0 0 0 38.50 0 0.07 0.07 0 0 0
September 5, 2025 (Weekly) 1.68 1.81 1.81 0 0 0 39.00 0 0.07 0.07 0 0 0
September 5, 2025 (Weekly) 1.20 1.34 1.34 0 0 0 39.50 0 0.10 0.10 0 0 0
September 5, 2025 (Weekly) 0.76 0.88 0.88 0 0 0 40.00 0.06 0.14 0.14 -0.06 0 20
September 5, 2025 (Weekly) 0.39 0.50 0.50 0 0 0 40.50 0.17 0.25 0.25 -0.07 0 15
September 5, 2025 (Weekly) 0.14 0.22 0.22 0 0 0 41.00 0.40 0.50 0.50 0 15 0
September 5, 2025 (Weekly) 0.02 0.05 0.05 -0.11 0 4 41.50 0.77 0.90 0.90 0 0 0
September 5, 2025 (Weekly) 0 0.02 0.02 0 10 0 42.00 1.23 1.38 1.38 0 0 0
September 5, 2025 (Weekly) 0 0.02 0.02 0 0 0 42.50 1.73 1.87 1.87 0 0 0
September 5, 2025 (Weekly) 0 0.02 0.02 0 2,130 0 43.00 2.23 2.37 2.37 0 0 0
September 5, 2025 (Weekly) 0 0.02 0.02 0 0 0 43.50 2.73 2.87 2.87 0 0 0
September 5, 2025 (Weekly) 0 0.06 0.06 0 0 0 44.00 3.20 3.40 3.40 0 0 0
September 12, 2025 (Weekly) 2.23 2.36 2.36 0 0 0 38.50 0.01 0.10 0.10 0 0 0
September 12, 2025 (Weekly) 1.75 1.88 1.88 0 0 0 39.00 0.03 0.13 0.13 0 0 0
September 12, 2025 (Weekly) 1.30 1.44 1.44 0 0 0 39.50 0.09 0.15 0.15 0 0 0
September 12, 2025 (Weekly) 0.89 1.01 1.01 0 0 0 40.00 0.16 0.25 0.25 0 0 0
September 12, 2025 (Weekly) 0.55 0.64 0.64 0 0 0 40.50 0.29 0.38 0.38 0 0 0
September 12, 2025 (Weekly) 0.28 0.36 0.36 0 0 0 41.00 0.51 0.62 0.62 0 5 0
September 12, 2025 (Weekly) 0.11 0.18 0.18 0 0 0 41.50 0.84 0.96 0.96 0 57 0
September 12, 2025 (Weekly) 0.02 0.09 0.09 0 0 0 42.00 1.24 1.42 1.42 0 10 0
September 12, 2025 (Weekly) 0 0.03 0.03 0 2,100 0 42.50 1.73 1.88 1.88 0 0 0
September 12, 2025 (Weekly) 0 0.02 0.02 0 0 0 43.00 2.23 2.38 2.38 0 0 0
September 12, 2025 (Weekly) 0 0.02 0.02 0 0 0 43.50 2.73 2.88 2.88 0 0 0
September 12, 2025 (Weekly) 0 0.02 0.02 0 0 0 44.00 3.20 3.40 3.40 0 0 0
September 26, 2025 (Weekly) 2.25 2.39 2.39 0 0 0 38.50 0.11 0.18 0.18 0 0 0
September 26, 2025 (Weekly) 1.79 1.91 1.91 0 0 0 39.00 0.17 0.25 0.25 0 0 0
September 26, 2025 (Weekly) 1.35 1.47 1.47 0 0 0 39.50 0.26 0.35 0.35 0 0 0
September 26, 2025 (Weekly) 0.97 1.07 1.07 0 0 0 40.00 0.39 0.49 0.49 0 0 0
September 26, 2025 (Weekly) 0.63 0.73 0.73 0 0 0 40.50 0.60 0.69 0.69 0 0 0
September 26, 2025 (Weekly) 0.38 0.47 0.47 0 0 0 41.00 0.86 0.97 0.97 0 0 0
September 26, 2025 (Weekly) 0.20 0.28 0.28 0 0 0 41.50 1.20 1.32 1.32 0 0 0
September 26, 2025 (Weekly) 0.09 0.17 0.17 0 15 0 42.00 1.60 1.73 1.73 0 0 0
September 26, 2025 (Weekly) 0.02 0.11 0.11 0 0 0 42.50 2.02 2.20 2.20 0 0 0
September 26, 2025 (Weekly) 0.01 0.09 0.09 0 0 0 43.00 2.51 2.66 2.66 0 0 0
September 26, 2025 (Weekly) 0 0.08 0.08 0 0 0 43.50 2.99 3.15 3.15 0 0 0
September 26, 2025 (Weekly) 0 0.07 0.07 0 0 0 44.00 3.45 3.65 3.65 0 0 0
October 3, 2025 (Weekly) 2.27 2.41 2.41 0 0 0 38.50 0.16 0.23 0.23 0 0 0
October 3, 2025 (Weekly) 1.81 1.94 1.94 0 0 0 39.00 0.23 0.30 0.30 0 0 0
October 3, 2025 (Weekly) 1.41 1.52 1.52 0 0 0 39.50 0.34 0.42 0.42 0 0 0
October 3, 2025 (Weekly) 1.03 1.12 1.12 0 0 0 40.00 0.47 0.57 0.57 0 0 0
October 3, 2025 (Weekly) 0.71 0.80 0.80 0 0 0 40.50 0.69 0.77 0.77 0 0 0
October 3, 2025 (Weekly) 0.46 0.54 0.54 0 0 0 41.00 0.94 1.04 1.04 0 0 0
October 3, 2025 (Weekly) 0.28 0.35 0.35 0 0 0 41.50 1.25 1.38 1.38 0 0 0
October 3, 2025 (Weekly) 0.16 0.22 0.22 0 0 0 42.00 1.64 1.77 1.77 0 0 0
October 3, 2025 (Weekly) 0.07 0.14 0.14 0 0 0 42.50 2.05 2.23 2.23 0 0 0
October 3, 2025 (Weekly) 0.02 0.10 0.10 0 0 0 43.00 2.52 2.68 2.68 0 0 0
October 3, 2025 (Weekly) 0 0.09 0.09 0 0 0 43.50 3.00 3.15 3.15 0 0 0
October 3, 2025 (Weekly) 0 0.08 0.08 0 0 0 44.00 3.45 3.65 3.65 0 0 0
October 10, 2025 (Weekly) 2.18 2.50 2.50 0 0 0 38.50 0.07 0.42 0.42 0 0 0
October 10, 2025 (Weekly) 1.71 2.05 2.05 0 0 0 39.00 0.13 0.49 0.49 0 0 0
October 10, 2025 (Weekly) 1.27 1.66 1.66 0 0 0 39.50 0.23 0.59 0.59 0 0 0
October 10, 2025 (Weekly) 0.91 1.33 1.33 0 0 0 40.00 0.37 0.79 0.79 0 0 0
October 10, 2025 (Weekly) 0.61 1.03 1.03 0 0 0 40.50 0.58 0.99 0.99 0 0 0
October 10, 2025 (Weekly) 0.36 0.79 0.79 0 0 0 41.00 0.84 1.30 1.30 0 0 0
October 10, 2025 (Weekly) 0.15 0.59 0.59 0 0 0 41.50 1.17 1.59 1.59 0 0 0
October 10, 2025 (Weekly) 0.01 0.42 0.42 0 0 0 42.00 1.58 1.99 1.99 0 0 0
October 10, 2025 (Weekly) 0 0.30 0.30 0 0 0 42.50 2.02 2.39 2.39 0 0 0
September 19, 2025 15.65 15.80 15.80 0 0 0 25.00 0 0.06 0.06 0 9 0
September 19, 2025 12.65 12.85 12.85 0 0 0 28.00 0 0.06 0.06 0 0 0
September 19, 2025 10.65 10.85 10.85 0 10 0 30.00 0 0.06 0.06 0 66 0
September 19, 2025 8.65 8.85 8.85 0 20 0 32.00 0 0.06 0.06 0 51 0
September 19, 2025 7.65 7.85 7.85 0 0 0 33.00 0 0.06 0.06 0 0 0
September 19, 2025 6.65 6.85 6.85 0 47 0 34.00 0 0.06 0.06 0 1 0
September 19, 2025 5.65 5.85 5.85 0 0 0 35.00 0 0.07 0.07 0 15 0
September 19, 2025 4.65 4.85 4.85 0 30 0 36.00 0 0.08 0.08 0 5 0
September 19, 2025 3.70 3.85 3.85 0 27 0 37.00 0 0.10 0.10 0 56 0
September 19, 2025 2.71 2.85 2.85 0 234 0 38.00 0.05 0.13 0.13 0 20 0
September 19, 2025 2.23 2.37 2.37 0 0 0 38.50 0.07 0.16 0.16 0 0 0
September 19, 2025 1.76 1.90 1.90 0 8 0 39.00 0.13 0.19 0.19 0 27 0
September 19, 2025 1.32 1.45 1.45 0 10 0 39.50 0.21 0.27 0.27 0 0 0
September 19, 2025 0.92 1.02 1.02 0 29 0 40.00 0.33 0.41 0.41 0 10 0
September 19, 2025 0.59 0.67 0.67 -0.05 0 11 40.50 0.52 0.61 0.61 0 0 0
September 19, 2025 0.33 0.40 0.40 -0.02 149 4 41.00 0.80 0.90 0.90 -0.11 10 2
September 19, 2025 0.16 0.23 0.23 0 10 0 41.50 1.14 1.25 1.25 0 0 0
September 19, 2025 0.05 0.12 0.12 0 131 0 42.00 1.53 1.71 1.71 0 39 0
September 19, 2025 0.02 0.08 0.08 0 0 0 42.50 2.01 2.15 2.15 0 2 0
September 19, 2025 0 0.07 0.07 0 1,641 0 43.00 2.49 2.63 2.63 0 0 0
September 19, 2025 0 0.07 0.07 0 0 0 43.50 2.98 3.15 3.15 0 0 0
September 19, 2025 0 0.06 0.06 0 77 0 44.00 3.45 3.65 3.65 0 0 0
September 19, 2025 0 0.07 0.07 0 50 0 45.00 4.45 4.65 4.65 0 0 0
September 19, 2025 0 0.06 0.06 0 0 0 46.00 5.45 5.65 5.65 0 0 0
October 17, 2025 7.65 7.85 7.85 0 0 0 33.00 0.01 0.08 0.08 0 0 0
October 17, 2025 6.65 6.85 6.85 0 0 0 34.00 0.01 0.09 0.09 0 5 0
October 17, 2025 5.65 5.85 5.85 0 0 0 35.00 0.02 0.11 0.11 0 0 0
October 17, 2025 4.70 4.85 4.85 0 0 0 36.00 0.02 0.15 0.15 0 8 0
October 17, 2025 3.70 3.85 3.85 0 0 0 37.00 0.10 0.17 0.17 0 12 0
October 17, 2025 2.76 2.91 2.91 0 5 0 38.00 0.17 0.24 0.24 0 93 0
October 17, 2025 1.89 2.02 2.02 0 21 0 39.00 0.32 0.39 0.39 0 79 0
October 17, 2025 1.15 1.24 1.24 0 0 0 40.00 0.60 0.67 0.67 0 2 0
October 17, 2025 0.60 0.67 0.67 0 1 0 41.00 1.05 1.14 1.14 0 61 0
October 17, 2025 0.25 0.32 0.32 0 85 0 42.00 1.70 1.83 1.83 0 2 0
October 17, 2025 0.09 0.16 0.16 0 10 0 43.00 2.54 2.71 2.71 0 1 0
October 17, 2025 0.01 0.10 0.10 0 9 0 44.00 3.50 3.65 3.65 0 0 0
October 17, 2025 0 0.08 0.08 0 0 0 45.00 4.45 4.65 4.65 0 0 0
October 17, 2025 0 0.07 0.07 0 0 0 46.00 5.45 5.65 5.65 0 0 0
November 21, 2025 7.65 7.85 7.85 0 0 0 33.00 0.02 0.14 0.14 0 0 0
November 21, 2025 6.70 6.90 6.90 0 0 0 34.00 0.03 0.17 0.17 0 0 0
November 21, 2025 5.70 5.90 5.90 0 0 0 35.00 0.10 0.18 0.18 0 0 0
November 21, 2025 4.75 4.95 4.95 0 0 0 36.00 0.14 0.25 0.25 0 52 0
November 21, 2025 3.85 4.00 4.00 0 0 0 37.00 0.25 0.32 0.32 0 4 0
November 21, 2025 3.00 3.15 3.15 0 30 0 38.00 0.37 0.46 0.46 0 0 0
November 21, 2025 2.21 2.33 2.33 0 62 0 39.00 0.57 0.67 0.67 -0.05 0 2
November 21, 2025 1.52 1.63 1.63 0 28 0 40.00 0.86 0.98 0.98 0 0 0
November 21, 2025 0.97 1.07 1.07 0 5 0 41.00 1.33 1.43 1.43 0 0 0
November 21, 2025 0.55 0.66 0.66 0 1 0 42.00 1.93 2.04 2.04 0 0 0
November 21, 2025 0.30 0.38 0.38 0 5 0 43.00 2.68 2.82 2.82 0 0 0
November 21, 2025 0.14 0.22 0.22 0 20 0 44.00 3.50 3.75 3.75 0 0 0
November 21, 2025 0.05 0.14 0.14 0 0 0 45.00 4.50 4.70 4.70 0 0 0
November 21, 2025 0.01 0.11 0.11 0 0 0 46.00 5.45 5.65 5.65 0 0 0
December 19, 2025 15.60 15.90 15.90 0 0 0 25.00 0 0.06 0.06 0 35 0
December 19, 2025 12.65 12.90 12.90 0 0 0 28.00 0.01 0.08 0.08 0 15 0
December 19, 2025 10.65 10.90 10.90 0 0 0 30.00 0.01 0.11 0.11 0 5 0
December 19, 2025 8.65 8.90 8.90 0 5 0 32.00 0.02 0.17 0.17 0 42 0
December 19, 2025 6.65 6.95 6.95 0 46 0 34.00 0.11 0.23 0.23 0 171 0
December 19, 2025 5.70 6.00 6.00 0 0 0 35.00 0.16 0.29 0.29 0 15 0
December 19, 2025 4.80 5.05 5.05 0 176 0 36.00 0.25 0.35 0.35 0 116 0
December 19, 2025 3.95 4.15 4.15 0 0 0 37.00 0.37 0.48 0.48 0 0 0
December 19, 2025 3.10 3.30 3.30 0 91 0 38.00 0.52 0.65 0.65 0 0 0
December 19, 2025 2.35 2.49 2.49 0 0 0 39.00 0.78 0.90 0.90 0 20 0
December 19, 2025 1.65 1.79 1.79 0 424 0 40.00 1.12 1.25 1.25 0 0 0
December 19, 2025 1.13 1.26 1.26 0 4 0 41.00 1.59 1.73 1.73 0 20 0
December 19, 2025 0.69 0.82 0.82 0 38 0 42.00 2.19 2.33 2.33 0 0 0
December 19, 2025 0.41 0.54 0.54 0 20 0 43.00 2.89 3.10 3.10 0 0 0
December 19, 2025 0.22 0.32 0.32 0 39 0 44.00 3.70 3.95 3.95 0 0 0
December 19, 2025 0.09 0.23 0.23 0 8 0 45.00 4.55 4.85 4.85 0 0 0
December 19, 2025 0.02 0.16 0.16 0 0 0 46.00 5.45 5.80 5.80 0 0 0
January 16, 2026 4.85 5.10 5.10 0 0 0 36.00 0.34 0.43 0.43 0 0 0
January 16, 2026 4.00 4.25 4.25 0 0 0 37.00 0.47 0.57 0.57 0 0 0
January 16, 2026 3.20 3.40 3.40 0 0 0 38.00 0.64 0.77 0.77 0 0 0
January 16, 2026 2.48 2.62 2.62 0 0 0 39.00 0.90 1.04 1.04 0 0 0
January 16, 2026 1.83 1.96 1.96 0 0 0 40.00 1.26 1.39 1.39 0 0 0
January 16, 2026 1.26 1.41 1.41 0 5 0 41.00 1.73 1.87 1.87 0 0 0
January 16, 2026 0.84 0.97 0.97 0 0 0 42.00 2.32 2.45 2.45 0 0 0
January 16, 2026 0.54 0.65 0.65 0 0 0 43.00 3.00 3.20 3.20 0 0 0
January 16, 2026 0.32 0.44 0.44 0 5 0 44.00 3.80 4.00 4.00 0 0 0
January 16, 2026 0.19 0.28 0.28 0 0 0 45.00 4.55 4.90 4.90 0 0 0
January 16, 2026 0.09 0.20 0.20 0 0 0 46.00 5.50 5.85 5.85 0 0 0
February 20, 2026 4.15 4.40 4.40 0 0 0 37.00 0.54 0.72 0.72 0 0 0
February 20, 2026 3.35 3.60 3.60 0 0 0 38.00 0.75 0.94 0.94 0 0 0
February 20, 2026 2.67 2.83 2.83 0 0 0 39.00 1.04 1.23 1.23 0 0 0
February 20, 2026 2.03 2.22 2.22 0 0 0 40.00 1.41 1.61 1.61 0 0 0
February 20, 2026 1.46 1.64 1.64 0 0 0 41.00 1.89 2.05 2.05 0 0 0
February 20, 2026 1.00 1.22 1.22 0 0 0 42.00 2.45 2.63 2.63 0 0 0
February 20, 2026 0.68 0.88 0.88 0 0 0 43.00 3.10 3.30 3.30 0 0 0
February 20, 2026 0.44 0.62 0.62 0 0 0 44.00 3.90 4.10 4.10 0 0 0
February 20, 2026 0.28 0.43 0.43 0 0 0 45.00 4.70 4.95 4.95 0 0 0
February 20, 2026 0.15 0.31 0.31 0 0 0 46.00 5.50 5.90 5.90 0 0 0
March 20, 2026 10.60 10.95 10.95 0 9 0 30.00 0.04 0.25 0.25 0 5 0
March 20, 2026 8.65 9.00 9.00 0 0 0 32.00 0.16 0.31 0.31 0 17 0
March 20, 2026 6.75 7.15 7.15 0 4 0 34.00 0.30 0.45 0.45 0 49 0
March 20, 2026 5.90 6.20 6.20 0 0 0 35.00 0.41 0.53 0.53 0 10 0
March 20, 2026 5.00 5.35 5.35 0 50 0 36.00 0.53 0.68 0.68 0 150 0
March 20, 2026 3.45 3.70 3.70 0 130 0 38.00 0.92 1.10 1.10 0 400 0
March 20, 2026 2.14 2.32 2.32 0 47 0 40.00 1.62 1.79 1.79 0 10 0
March 20, 2026 1.18 1.34 1.34 0 171 0 42.00 2.65 2.86 2.86 0 0 0
March 20, 2026 0.56 0.72 0.72 0 2 0 44.00 4.00 4.25 4.25 0 0 0
March 20, 2026 0.37 0.53 0.53 0 15 0 45.00 4.80 5.10 5.10 0 0 0
March 20, 2026 0.24 0.37 0.37 0 0 0 46.00 5.65 5.95 5.95 0 0 0
March 20, 2026 0.01 0.14 0.14 0 0 0 50.00 9.40 9.75 9.75 0 2 0
June 19, 2026 10.55 11.00 11.00 0 0 0 30.00 0.12 0.40 0.40 0 0 0
June 19, 2026 6.95 7.30 7.30 0 0 0 34.00 0.47 0.69 0.69 0 10 0
June 19, 2026 6.10 6.40 6.40 0 0 0 35.00 0.61 0.84 0.84 0 6 0
June 19, 2026 5.25 5.60 5.60 0 5 0 36.00 0.77 1.05 1.05 0 0 0
June 19, 2026 3.75 4.10 4.10 0 15 0 38.00 1.25 1.56 1.56 0 0 0
June 19, 2026 2.51 2.85 2.85 0 56 0 40.00 1.97 2.31 2.31 0 0 0
June 19, 2026 1.52 1.85 1.85 0 42 0 42.00 3.00 3.35 3.35 0 4 0
June 19, 2026 0.82 1.14 1.14 0 45 0 44.00 4.30 4.65 4.65 0 0 0
June 19, 2026 0.60 0.90 0.90 0 0 0 45.00 5.00 5.40 5.40 0 0 0
June 19, 2026 0.46 0.70 0.70 0 0 0 46.00 5.85 6.20 6.20 0 0 0
June 19, 2026 0.06 0.29 0.29 0 0 0 50.00 9.40 9.85 9.85 0 0 0

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