AMC Entertainment Holdings (NYSE:AMC) stock is up significantly in 2026, driven by record second-quarter revenue and a strong box office. The domestic box office recently hit a major summer milestone and is eyeing a yearly record, which could create more upside for the stock.

2026 Box Office Booms

Led by "Spider-Man: Brand New Day" and "The Odyssey," the 2026 summer box office season is setting record numbers not seen since the COVID-19 pandemic.

The season, which runs from the first Friday in May through Labor Day, is not officially over but is already the highest on record since the pandemic, according to Variety.

With $4.26 billion in domestic box office, 2026 is the highest since the pandemic and only the second to reach the $4 billion milestone, with 2023 hitting $4.04 billion, according to data from BoxOfficeMojo.