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

Nike (NKE) was 0.9% higher in pre-bell activity, after a 4% decline from Monday's session.

Sandisk (SNDK) fell by 6.1% premarket, swinging from an 8.9% rise at Monday's close.

Micron Technology (MU) declined by 5.2% in pre-bell hours, reversing a 4.1% increase from the previous session.

SpaceX (SPCX) was down 2.5% pre-bell, following a 4.5% rise from Monday's session.

Nebius Group (NBIS) fell by 2.3% in pre-bell activity, after a 3.2% decline from the previous session.

Nvidia (NVDA) was declined by 2.1% hours before market open, after closing Monday with a 0.1% fall.

Meta Platforms (META) was 0.7% lower in premarket activity, after a 3.5% decline from the previous session.

Reddit (RDDT) fell by 0.7% pre-bell, following a 7.6% fall at Monday's close.