06:35 AM EDT, 08/29/2025 (MT Newswires) -- The most-talked-about stocks in the Reddit subforum Wallstreetbets were mostly lower hours before Friday's opening bell.

Opendoor Technologies ( OPEN ) rose by 1.6% pre-bell, after closing Thursday with a 6.2% increase.

Webull ( BULL ) advanced by 1.5% premarket, following a 1.6% increase at Thursday's close.

Marvell Technology ( MRVL ) declined by 14.7% premarket, reversing a 3.3% increase from the previous session. The company reported in-line earnings per share and sales in fiscal Q2, while the bottom end of its Q3 EPS guidance missed market expectations.

Snowflake (SNOW) was 1.2% lower hours before market open, swinging from a 20.3% rise at Thursday's close.

Palantir Technologies ( PLTR ) fell by 1.2% in pre-bell activity, reversing a 0.9% increase from Thursday's session.

Nvidia ( NVDA ) was down 1.1% premarket, after a 0.8% decline from the previous session.

Tesla (TSLA) declined by 0.9% in pre-bell hours, following a 1% fall at Thursday's close.

Alphabet (GOOG) was 0.3% lower premarket, swinging from a 2% increase at Thursday's close.