BTBT - NVAX GME AMC and RIOT among premarket gainers

Siebert Financial (SIEB) +453%.LM Funding America (LMFA) +101%.GameStop (GME) +75%.Koss Corporation (KOSS) +63%.Novavax (NVAX) +60% as its COVID-19 vaccine shows 89% efficacy in UK, 60% in South Africa.Catabasis Pharmaceuticals (CATB) +51% after announcing acquisition of Quellis Biosciences.AMC Entertainment Holdings (AMC) +44%.Bellicum Pharmaceuticals (BLCM) +38% on reporting FDA lifted clinical hold on BPX-601 phase 1/2 clinical trial.Lion Group Holding (LGHL) +36%.Express (EXPR) +38%.Bit Digital (BTBT) +29%.Property Solutions Acquisition (PSAC) +28% as Faraday Future to go public in SPAC deal.Viveve Medical (VIVE) +27%.McEwen Mining (MUX) +27% on updating deliverables in 2021 and financing activities.9 Meters Biopharma (NMTR) +24%.Naked Brand Group (NAKD) +21%.Marathon Patent Group (MARA) +20%.Riot Blockchain (RIOT) +21%.AeroCentury (ACY) +17%.Future FinTech Group (FTFT) +20%.Curis (CRIS) +20%.The9 Limited (NCTY) +20%.CEL-SCI Corporation (CVM) +19%.NeuroMetrix (NURO) +18% on Q4 results.Sino-Global Shipping America (SINO) +19%.Read: Robinhood resumes limited buys of squeeze stocks, limits crypto trading

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NVAX, GME, AMC and RIOT among premarket gainers