TRANSALTA CORP (TAC) Most Active Options
The 7 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 Oct 12, 2026, 3:55 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 | 39d | $0.25 | 52.3% | 24 | 0.23 | 3,531 | 3 | 0.7× avg |
| TAC $13 call | Oct 16, 2026 | 4d | $0.47 | 68.8% | 0 | 0.52 | 394 | 2 | 2.0× avg |
| TAC $12 call | Oct 16, 2026 | 4d | $1.55 | 94.9% | 100 | 0.80 | 196 | 1 | 1.0× avg |
| TAC $14 call | Nov 20, 2026 | 39d | $0.55 | 40.1% | 12 | 0.32 | 255 | 1 | 0.1× avg |
| TAC $14 call | Dec 18, 2026 | 67d | $0.56 | 41.2% | 14 | 0.38 | 399 | 1 | 0.1× avg |
| TAC $10 call | Nov 20, 2026 | 39d | $3.20 | 57.7% | 57 | 0.93 | 665 | 1 | 0.5× avg |
| TAC $14 call | Oct 16, 2026 | 4d | $0.05 | 152.4% | 100 | 0.35 | 61 | 1 | 1.0× 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 39 days, with 3 contracts traded. Calls dominate the most-active list (7 of the top 7), showing where trading interest concentrates.
Explore the payoff profile of option on TAC for free
Build multi-leg TAC strategies, visualize payoffs, and scan the full US options universe with OptiView.
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 3 contracts traded as of Oct 12, 2026.
How does OptiView rank the most active TAC options?
The table lists the 7 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.