Stocks making the biggest moves after hours: GameStop, Boot Barn, Blackberry and more

T. Rowe Price's David Giroux on whether he sees more value in U.S. or global stocks

Here are the stocks making notable moves in extended trading.

GameStop — Shares of the video game retailer jumped 6% in extended trading, continuing its recent trend of volatile moves amid a frenzy of retail trading. During Monday's regular trading hours, the stock traded up more than 100% and in negative territory within hours.

Boot Barn — Shares of the retailer slipped more than 2% after the company declined to give forward guidance within its quarterly earnings report, citing uncertainty regarding the pandemic. Boot Barn's results for its fiscal third quarter were in-line with previously announced preliminary results.

Bed Bath & Beyond, Blackberry — Some of the retail trader favorites from Monday's session continued to climb higher after the bell. Shares of Bed Bath & Beyond added nearly 4% in extended trading, while Blackberry jumped more than 7%.