Alaska Air Group's stock experienced a significant after-hours plunge of 5.41% on Tuesday, following the regular trading session.

The sharp decline appears linked to investor apprehension ahead of the company's second-quarter earnings report, which was scheduled for release after the market close. Analysts had forecast the airline to report a quarterly loss of 99 cents per share, a stark reversal from a profit of $1.78 per share in the same period last year. This anticipated loss follows a worse-than-expected first-quarter performance where the company suspended its financial guidance.

Market sentiment was further indicated by options activity, which implied an expected 6.6% move in the share price following the earnings announcement, reflecting high uncertainty among traders regarding the results.