Social Buzz: Wallstreetbets Stocks Mixed Premarket Friday; SpaceX to Advance, Moderna to Decline

06:36 AM EDT, 10/23/2026 (MT Newswires) -- The most-talked-about stocks in the Reddit subforum Wallstreetbets were mixed hours before Friday's opening bell. SpaceX (SPCX) rose 2.4% pre-bell, swinging from a 9.1% decline at Thursday's close. Nebius Group (NBIS) advanced by 1.8% premarket, after a 7.2% fall from the previous session. Micron Technology (MU) was 1.8% higher pre-bell, swinging from a 6.3% decline at Thursday's close. Nvidia (NVDA) was up 0.5% in pre-bell hours, following a 4.4% fall from Thursday's session. Moderna (MRNA) fell 4.5% in premarket activity, after closing Thursday with a 17.6% decline. Moderna and Merck (MRK) shares were weighed down by reports of a possible leak of data on the companies' highly anticipated personalized melanoma vaccine. Western Digital (WDC) declined by 1.5% hours before market open, following a 6.4% fall from Thursday's session. Bloom Energy (BE) was down 1.3% pre-bell, following an 8.7% fall at Thursday's close. Meta Platforms (META) was 0.6% lower in premarket hours, after falling nearly 7% in the previous session.