The most-talked-about stocks in the Reddit subforum Wallstreetbets were mostly higher hours before Friday's opening bell.

SpaceX (SPCX) rose by 4% in pre-bell activity, following a 4.2% fall from Thursday's session. SpaceX agreed to acquire a nationwide portfolio of licenses covering up to 14 megahertz of paired spectrum in the 800 MHz band to expand Starlink Mobile's coverage in the US.

Nebius Group (NBIS) was 2.8% higher in premarket activity, after closing Thursday with a 7.4% decline.

Micron Technology (MU) was up 1.9% premarket, swinging from a 4.8% decline at Thursday's close.

Sandisk (SNDK) rose by 1.8% in pre-bell hours, after a 4.9% fall from Thursday's session.

Applied Digital (APLD) advanced by 1.2% pre-bell, following a 0.2% increase from the previous session.

Microsoft (MSFT) was 1% higher in premarket activity, swinging from a 1.4% decline at Thursday's close.

Palantir Technologies (PLTR) was up 0.6% pre-bell, after a 2.4% increase from the previous session.

AST SpaceMobile (ASTS) fell by 2.8% hours before the market open, after a 6.1% decline from the previous session.