Air Canada (AC) shares advanced 6.1% to C$25.74 on 2026-07-28, marking the stock's best single-session move in 14 months and its highest close since December 6, 2024, on volume of 6.4 million shares — approximately 2x the average — while call options surged to 4,525 contracts.
The combination of elevated price gain, above-average volume (2x average at 6.4 million shares), and a surge in call option activity (4,525 contracts) indicates a notable shift in market participation for AC shares; heightened options activity is often associated with positioning or hedging events and may reflect broader sentiment shifts in the Canadian airline and travel sector, where fuel costs, currency exposure, and passenger demand are key fundamental linkages.