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.
The latest swing underlined the stock’s extreme volatility: Nasdaq data show a 52-week range spanning roughly $0.09 to $83.60.
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.
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.
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.
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.
Market data trackers put Regencell’s equity value at roughly $10.4 billion, with about 494 million shares outstanding.
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.
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.
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.
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.
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.
Related articles: Biotechnology
