TRANSALTA CORP (TAC) Most Active Options
The 19 most actively traded TRANSALTA CORP (TAC) option contracts at the latest daily snapshot, ranked by volume. Each row shows the contract's price, implied volatility, delta, open interest, and how today's volume compares with its own 30-day average — click a contract to analyze it in the OptiView platform.
Data as of Jul 10, 2026, 8:00 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.
Most Active TAC Contracts
| Contract | Expiration | DTE | Last | IV | IV rank (30d) | Delta | Open interest | Volume | vs 30d avg |
|---|---|---|---|---|---|---|---|---|---|
| TAC $15 call | Nov 20, 2026 | 133d | $1.47 | 48.3% | 41 | 0.50 | 4,144 | 532 | 34.7× avg |
| TAC $15 call | Aug 21, 2026 | 42d | $0.73 | 49.5% | 51 | 0.41 | 4,711 | 358 | 17.1× avg |
| TAC $17 call | Nov 20, 2026 | 133d | $0.85 | 50.7% | 38 | 0.34 | 1,870 | 150 | 2.1× avg |
| TAC $20 call | Nov 20, 2026 | 133d | $0.40 | 53.6% | 28 | 0.19 | 4,046 | 76 | 8.7× avg |
| TAC $16 call | Dec 18, 2026 | 161d | $1.25 | 48.1% | 31 | 0.43 | 293 | 20 | 0.3× avg |
| TAC $15 call | Jul 17, 2026 | 7d | $0.14 | 53.4% | 32 | 0.25 | 1,171 | 18 | 1.3× avg |
| TAC $15 call | Dec 18, 2026 | 161d | $1.67 | 56.4% | 65 | 0.53 | 217 | 10 | 0.7× avg |
| TAC $18 call | Dec 18, 2026 | 161d | $0.93 | 50.8% | 22 | 0.31 | 24 | 4 | 0.5× avg |
| TAC $14 call | Nov 20, 2026 | 133d | $1.90 | 57.4% | 69 | 0.60 | 115 | 4 | 12.0× avg |
| TAC $16 call | Nov 20, 2026 | 133d | $1.24 | 55.4% | 51 | 0.44 | 59 | 4 | 0.1× avg |
| TAC $10 call | Aug 21, 2026 | 42d | $4.48 | 94.8% | 22 | 0.90 | 12 | 3 | 25.8× avg |
| TAC $14 put | Jul 17, 2026 | 7d | $0.14 | 38.5% | 0 | -0.37 | 6 | 3 | 4.0× avg |
| TAC $13 call | Nov 20, 2026 | 133d | $2.35 | 48.6% | 47 | 0.69 | 505 | 3 | 10.8× avg |
| TAC $10 call | Nov 20, 2026 | 133d | $4.80 | 60.5% | 24 | 0.88 | 750 | 2 | 0.9× avg |
| TAC $12 call | Sep 18, 2026 | 70d | $2.85 | 63.5% | 65 | 0.78 | 41 | 1 | 17.0× avg |
| TAC $15 put | Aug 21, 2026 | 42d | $1.30 | 48.8% | 19 | -0.59 | 3 | 1 | 9.3× avg |
| TAC $14 call | Dec 18, 2026 | 161d | $2.05 | 52.0% | 55 | 0.60 | 278 | 1 | 3.0× avg |
| TAC $12 call | Aug 21, 2026 | 42d | $3.20 | 64.6% | 66 | 0.81 | 24 | 1 | 17.0× avg |
| TAC $13 call | Sep 18, 2026 | 70d | $2.15 | 52.3% | 53 | 0.70 | 325 | 1 | 17.0× avg |
Ranked by volume at the latest daily snapshot. "vs 30d avg" compares today's volume with the contract's own 30-day average.
The most active TAC contract today is the $15 call expiring in 133 days, with 532 contracts traded. Calls dominate the most-active list (17 of the top 19), showing where trading interest concentrates. One of these contracts is running well ahead of the usual daily volume.
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TAC Options FAQ
Which TAC option contract is most active today?
The most traded TAC contract is the $15 call expiring Nov 20, 2026, with 532 contracts traded as of Jul 10, 2026.
How does OptiView rank the most active TAC options?
The table lists the 19 TAC contracts with the highest volume at the latest daily snapshot, alongside price, implied volatility, delta, open interest, and each contract's volume versus its own 30-day average.
Methodology. IV rank compares the current 30-day at-the-money implied volatility with its highest and lowest values over the past 52 weeks. Max pain is the strike that minimizes the total payout to option holders at expiration. The call and put walls are the strikes carrying the largest call and put open interest across all expirations. Net gamma exposure (GEX) is measured from the dealer perspective. All statistics are derived from delayed OPRA options data.
Options trading involves significant risk, and losses can exceed your initial investment. Always consult a licensed financial professional before making investment decisions. OptiView does not provide financial advice; all figures on this page are descriptive statistics, not recommendations.