NEW YORK, January 1, 2026, 10:46 ET — Market closed.
- Regencell Bioscience Holdings last closed down 8.3% at $21 on Dec. 31
- The company’s investor updates show no new press release since Oct. 31
- U.S. stocks are shut for New Year’s Day; macro data hits before trading resumes
Regencell Bioscience Holdings’ shares last closed down 8.3% at $21 on Wednesday, just before U.S. markets shut for the New Year’s Day holiday. 1
The latest swing underlined the stock’s extreme volatility: Nasdaq data show a 52-week range spanning roughly $0.09 to $83.60. 2
That matters now because the move came without an obvious company-specific catalyst in the past day, leaving traders to focus on liquidity and positioning into the first session after the holiday. The company’s investor-relations site lists its most recent press release as Oct. 31. 3
Trading was wide on the day. The stock ranged from $21.00 to $23.23 and closed at the low, with about 173,000 shares traded, market data show. 4
Volume ran below its recent average, a reminder that relatively small orders can move the stock sharply when participation is light. The shares also remain above key moving-average levels tracked by market technicians, which some traders use as a rough read on trend. 5
Regencell, based in Hong Kong, says it is developing Traditional Chinese Medicine (TCM) treatments — herbal-based therapies rooted in Chinese medical practice — for neurocognitive conditions including ADHD and autism spectrum disorder. 6
Market data trackers put Regencell’s equity value at roughly $10.4 billion, with about 494 million shares outstanding. 6
The company’s most recent annual report on Form 20-F — the SEC filing used by foreign private issuers — was filed on Oct. 31, SEC records show. 7
Regencell last year carried out a 38-for-1 forward stock split, which increases the number of shares while lowering the price per share, in a move it said required no action by shareholders. 8
Before trading resumes, investors will parse a fresh read on U.S. factory activity: the ISM manufacturing PMI, a survey-based gauge of manufacturing conditions, is due at 10 a.m. ET on Friday. 9
Construction spending data are also scheduled for 10 a.m. ET the same day, according to an economic calendar, and can move rates and the dollar — inputs that often ripple through equities. 10
Next week brings heavier macro catalysts, led by the U.S. jobs report for December on Jan. 9 and the consumer price index on Jan. 13, Labor Department schedules show. 11
