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

Reddit (RDDT) advanced by 5.6% premarket, set to extend Thursday's 1.9% rise. Reddit reported that it swung to Q1 earnings as revenue increased during the first quarter.

Strategy (MSTR) rose by 1.5% pre-bell, after closing Thursday up less than 0.5%.

Nvidia (NVDA) was 1.2% higher hours before market open, following a 2.5% increase from the previous session.

Tesla (TSLA) was up 0.5% in premarket hours, swinging from a 0.6% decline at Thursday's close.

Robinhood Markets (HOOD) advanced by 0.4% in pre-bell activity, swinging from a 5.1% fall at Thursday's lose.

Microsoft (MSFT) was 0.4% higher premarket, following a 7.6% rise at Thursday's close.

Apple (AAPL) was down 3% hours before market open, reversing a 0.4% increase from the previous session.

Amazon.com (AMZN) declined by 1.3% pre-bell, swinging from a 3.1% rise at Thursday's close.