Unusual total active option classes on open include: Hut 8 Mining (HUT), Bitfarms (BITF), Futu Holdings (FUTU), Workday (WDAY), NovaDel Pharma (NVDL), Enphase Energy (ENPH), American Airlines (AAL), iShares Silver Trust (SLV), Sunrun (RUN), and Virgin Galactic (SPCE).