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

Sandisk (SNDK) was 5% higher premarket, following a 7.4% rise at Friday's close. Micron Technology (MU) advanced by 3.5% in pre-bell hours, after a 2.3% increase in the previous session.

Situational Awareness increased its stakes in Micron and Sandisk in Q2, according to regulatory filings published Friday.

Nebius Group (NBIS) was 1.6% higher premarket, following an 8.9% increase at Friday's close.

SpaceX (SPCX) rose by 1.1% in premarket activity, reversing a 0.9% fall from the previous session.

Nvidia (NVDA) was up 0.4% hours before market open, swinging from a 0.1% decline at Friday's close.

DTE Energy (DTE) was 0.4% higher in pre-bell activity, following a 0.9% in the previous session.

Netflix (NFLX) advanced by 0.4% pre-bell, after a 0.1% decline Friday.

Reddit (RDDT) was 0.2% lower in premarket hours, swinging from a 13% in the previous session.