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

Webull (BULL) declined by 9.8% pre-bell, swinging from a 2.1% increase at Thursday's close.

Tesla (TSLA) fell by 6.3% in premarket activity, following a 0.1% decline from the previous session. The fall followed news over the weekend that Chief Executive Elon Musk plans to launch a new political party, sparking a fresh round of public sparring with US President Donald Trump.

Robinhood Markets (HOOD) was down 1.3% in pre-bell hours, after a 3.7% fall at Thursday's close.

DTE Energy (DTE) was 1.3% lower pre-bell, following a 1% increase from the previous session.

enCore Energy (EU) declined by 1% premarket, swinging from a 1.7% increase at Thursday's close.

Nvidia (NVDA) was 0.7% lower hours before market open, swinging from a 1.3% increase at Thursday's close.

Antero Midstream (AM) was down 0.1% pre-bell, after closing Thursday with a 0.8% decline.

Bucking the trend, UnitedHealth Group (UNH) was slightly higher premarket, following a 0.3% increase from the previous session.