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

Intuitive Machines (LUNR) rose by 16.9% in pre-bell activity, reversing an 8.9% fall at Tuesday's close.

Rocket Lab (RKLB) was 7.7% higher premarket, after a 5.5% increase from the previous session.

AST SpaceMobile (ASTS) advanced by 6.1% in premarket hours, following a 13.1% rise from Tuesday's session.

Micron Technology (MU) was up 4.5% premarket, after a 19.3% rise from the previous session. Micron Technology's market capitalization eclipsed $1 trillion for the first time Tuesday after several bullish analyst reports.

Sandisk (SNDK) rose by 1.4% premarket, after closing Tuesday with a 7.5% increase.

Advanced Micro Devices (AMD) advanced by 1.3% pre-bell, following a 7.8% increase at Tuesday's close.

Nvidia (NVDA) was 0.1% higher hours before market open, swinging from a 0.2% decline at Tuesday's close.

Bucking the trend, Microsoft (MSFT) was 0.4% lower in premarket activity, after closing Tuesday with a 0.6% decline.