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

Strategy (MSTR) was 4.1% higher in premarket activity, reversing a 4.1% fall from the previous session.

Nvidia (NVDA) was up 0.1% hours before market open, swinging from a 0.5% decline at Tuesday's close.

AST SpaceMobile (ASTS) fell by 4.2% in premarket activity, after a 7.2% increase from the previous session.

Rocket Lab (RKLB) was 3.6% lower premarket, swinging from a 10.1% increase at Tuesday's close.

Nebius Group (NBIS) declined by 2.1% in pre-bell hours, after a nearly 8% increase from the previous session.

Micron Technology (MU) was down 1.4% pre-bell, following a 10% rise from Tuesday's session.

Amazon.com (AMZN) was 0.3% lower premarket, swinging from a 3.4% increase from the previous session.

Tesla (TSLA) declined by 0.1% in pre-bell hours, after closing Tuesday with a 4.1% fall.