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

Rocket Lab (RKLB) rose by 3.6% premarket, following a 3.4% increase from Friday's session

SpaceX (SPCX) advanced by 2.5% in pre-bell activity, after closing Friday with a 15.8% increase.

AST Spacemobile (ASTS) was up 0.6% in premarket hours, following a 6.8% rise from Friday's session.

Nebius Group (NBIS) rose by 0.5% pre-bell, swinging from a 1% fall at Friday's close.

Sandisk (SNDK) advanced by 0.6% premarket, following a 3.7% decline from Friday's session.

Hertz Global Holdings (HTZ) was 0.4% higher hours before market open, after a 12.4% rise from the previous session.

Micron Technology (MU) was flat premarket, swinging from a 0.4% decline at Friday's close.

DTE Energy (DTE) was marginally advancing pre-bell, after a 0.1% decline from the previous session.