Five Below's stock experienced a significant post-market decline of 12.87% on Wednesday, following the release of its first-quarter fiscal 2026 financial results.

The discount retailer reported adjusted earnings per share of $2.22, significantly exceeding analyst expectations of $1.77, while revenue of $1.29 billion also topped estimates. The company additionally raised its full-year sales and earnings per share guidance.

Market analysts attribute the sharp decline to a classic "sell-the-news" reaction, where investors who had bid up the share price in anticipation of strong results decided to lock in profits once the earnings were officially released. This movement was part of a broader pattern observed in after-hours trading, where several other companies reporting solid results also saw their shares fall.