06:55 AM EDT, 05/13/2025 (MT Newswires) -- The most-talked-about stocks in the Reddit subforum Wallstreetbets were mixed hours before Tuesday's opening bell.

AST SpaceMobile ( ASTS ) fell by 3.4% in premarket hours, swinging from a 5.4% increase at Monday's close.

Tesla (TSLA) was down 1% pre-bell, after closing Monday with a 6.8% rise.

Palantir Technologies ( PLTR ) was 0.7% lower premarket, swinging from a 1% increase at Monday's close.

Alphabet (GOOG) declined by 0.3% in pre-bell activity, following a 3.4% increase from Monday's session.

Antero Midstream ( AM ) was down 0.1% in premarket hours, swinging from a 0.7% rise at Monday's close.

Strategy (MSTR) advanced by 1.1% pre-bell, swinging from a 2.7% decline at Monday's close.

UnitedHealth Group ( UNH ) was 0.5% higher hours before market open, reversing a 0.5% decline from the previous session.

Nvidia ( NVDA ) was up 0.1% premarket, after closing Monday with a 5.4% increase.