Regencell Bioscience stock price jumps again: RGC up 16% premarket after 40% surge
Regencell Bioscience shares jumped 16.3% to $35.77 in premarket trading Friday after a 40.4% surge Thursday, with no new company announcements. Thursday’s rally saw heavy volume and wide price swings, closing at $30.77. The company’s filings warn of “extreme price and volume fluctuations” and note it has no saleable products or revenue. Market cap reached about $15.2 billion as of Friday.