Transalta Corp
Transalta Corp (TAC) Options Open Interest
TAC options open interest is 28,824 contracts. The 2-week average daily volume is 387 contracts across the chain.
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Monitoring TAC open interest helps you see where real money is positioned on Transalta Corp's options and which strikes are attracting the most commitment from traders. Transalta Corp's open interest reflects the total number of outstanding contracts that have not been closed or exercised, making it a powerful gauge of liquidity, conviction, and potential support and resistance zones. Use our scanner to monitor TAC options open interest in real time and find the strikes that matter.
Open interest is distinct from volume: volume counts how many contracts are traded in a session, while open interest counts how many remain open at the end of the day. Rising TAC options open interest alongside rising volume suggests new positions are being built, while falling open interest signals positions are being closed. Heavy open interest at specific strikes often acts as a magnet near expiration and can hint at where dealers and large traders expect Transalta Corp to settle.
TransAlta Corporation owns, operates, and develops a diverse fleet of electrical power generation assets in Canada, the United States, and Australia. It operates through four segments: Hydro, Wind and Solar, Gas, and Energy Transition. owns and operates hydro, wind and solar, natural gas-fired, and coal-fired facilities. The company also engages in wholesale trading of electricity and other energy-related commodities and derivatives; and related mining operations and natural gas pipeline operations. It serves municipalities, medium and large industries, businesses, and utility customers. The company was founded in 1909 and is headquartered in Calgary, Canada.
Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where TAC open interest is concentrated. Our scanner maps Transalta Corp's open interest across every strike and expiry, flags unusual buildups, and lets you drill into the contracts that institutional money is actually holding. Trade Transalta Corp's options open interest as the signal it is, not as an afterthought.
| 12.00 | 0.40 | 0.60 | 0.50 | 43% | +0.5098 | 109 |
| 14.00 | — | 0.35 | 0.35 | 82% | +0.2580 | 25 |
| 13.00 | 0.05 | 0.25 | 0.15 | 40% | +0.2234 | 22 |
| 15.00 | — | 0.10 | 0.10 | 67% | +0.1088 | 10 |
| 5.00 | 6.50 | 8.60 | 7.55 | 360% | +0.9206 | 0 |
| 12.00 | 0.40 | 0.55 | 0.48 | 37% | -0.4946 | 214 |
| 9.00 | — | 0.75 | 0.75 | 178% | -0.1968 | 23 |
| 13.00 | 0.65 | 1.30 | 0.98 | 5% | -1.0000 | 1 |
| 5.00 | — | 0.75 | 0.75 | 391% | -0.0848 | 0 |
| 6.00 | — | 0.75 | 0.75 | 324% | -0.1060 | 0 |
As of September 22, 2026
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