The most-talked-about stocks in the Reddit subforum Wallstreetbets were mixed hours ahead of Monday's opening bell.

Rocket Lab (RKLB) was up 7.5% in premarket hours, after closing Friday with a 9.3% rise.

Nebius Group (NBIS) advanced by 2.9% hours before market open, following a 4.3% increase from Friday's session.

Alphabet (GOOG) was up 0.5% premarket, after a 3% rise from the previous session.

Nvidia (NVDA) rose by 0.4% in premarket hours, after closing Friday with a 1.2% increase.

UnitedHealth Group (UNH) was 0.3% higher pre-bell, following a 2.5% increase from the previous session.

Robinhood Markets (HOOD) fell by 4.9% pre-bell, reversing a 3.3% increase from the previous session.

Tesla (TSLA) declined by 2.8% premarket, swinging from a 3.7% increase at Friday's close.

Palantir Technologies (PLTR) was down 1.1% in pre-bell activity, after closing Friday with a 6.5% increase.