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

EnCore Energy (EU) was up 3.7% premarket, after a 6.9% fall from the previous session.

Micron Technology (MU) advanced by 3.2% pre-bell, swinging from a decline of nearly 8% at Tuesday's close.

AST SpaceMobile (ASTS) rose by 3.1% in premarket activity, after closing Tuesday with a 6.6% increase.

Nvidia (NVDA) was 1.3% higher in pre-bell hours, reversing a 1.3% decline from Tuesday's session.

Antero Midstream (AM) advanced by 0.4% premarket, swinging from a 0.4% decline at Tuesday's close.

Palantir Technologies (PLTR) rose by 0.8% pre-bell, after a 1.4% increase from Tuesday's session.

CrowdStrike Holdings (CRWD) was 0.6% higher in premarket activity, after closing Tuesday with a 1.7% rise.

Microsoft (MSFT) was up 0.1% hours before market open, following a 1.4% increase from the previous session.