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

MongoDB (MDB) advanced by 24% in pre-bell activity, reversing a 1.1% fall from the previous session. Late Monday, the company reported higher fiscal Q3 non-GAAP net income and revenue, and raised its annual outlook.

Strategy (MSTR) rose by 2.1% premarket, swinging from a 3.3% decline at Monday's close.

Meta Platforms (META) advanced by 0.8% pre-bell, after closing Monday with a 1.1% drop.

Alphabet (GOOG) was 0.6% higher pre-bell, following a 1.6% decrease in the previous session.

Nvidia (NVDA) was up 0.6% in premarket hours, after a 1.7% rise Monday.

Nebius Group (NBIS) rose by 0.5% in pre-bell activity, following a 5.6% increase in the previous session.

Tesla (TSLA) advanced by 0.3% hours before market open, following a muted session Monday.

Antero Midstream (AM) was 0.2% higher in premarket activity, following a 0.7% increase Monday.