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

Opendoor Technologies (OPEN) rose by 4.3% in premarket activity, swinging from a 24.6% fall at Wednesday's close.

Apple (AAPL) advanced by 3.2% in pre-bell hours, following a 5.1% increase from the previous session. Apple said it is launching a $100 billion American Manufacturing Program to bring more of its supply chain and advanced manufacturing to the US.

Advanced Micro Devices (AMD) was up 2.5% premarket, swinging from a 6.4% decline at Wednesday's close.

Nvidia (NVDA) rose by 1.2% hours before market open, after closing Wednesday with a 0.7% increase.

Palantir Technologies (PLTR) was 1% higher premarket, following a 3.6% rise from the previous session.

Tesla (TSLA) advanced by 0.7% pre-bell, after a 3.6% rise at Wednesday's close.

UnitedHealth Group (UNH) was up 0.5% in premarket activity, swinging from a 2.1% fall at Wednesday's close.

Bucking the trend, AppLovin (APP) was 0.8% lower pre-bell, swinging from a 3.3% increase at Wednesday's close.