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

Hertz Global Holdings (HTZ) rose by 21.8% in pre-bell activity, after a 29.5% increase at Thursday's close.

Nebius Group (NBIS) was up nearly 4% premarket, following a 13.3% decline from the previous session.

Sandisk (SNDK) was 2.7% higher pre-bell, swinging from a 6.8% fall at Thursday's close.

SpaceX (SPCX) advanced by 1.6% premarket, after a 6.1% increase from Thursday's session.

Micron Technology (MU) was up 1.3% hours before market open, swinging from a 1.3% decline from the previous session.

Nvidia (NVDA) was 0.2% higher in premarket activity, reversing a 0.1% decline from Thursday's session.

Trade Desk (TTD) fell by 27.9% premarket, after a 6.8% decline at Thursday's close. Trade Desk reported a decline in Q2 adjusted earnings.

Microsoft (MSFT) declined by 0.6% pre-bell, following a 2.5% increase from the previous session.