US equity markets witnessed sharp divergences on Tuesday, with extreme gains and losses concentrated largely in small-cap and micro-cap stocks, while heavyweights and key indices traded mixed amid cautious investor sentiment.
Top Gainers
Among the biggest advancers, BCARW (D. Boral ARC Acquisition) led the rally, surging over 214%, followed by XAIR (Beyond Air Inc.), which jumped 150%. Other notable gainers included THH (TryHard Holdings) up 138%, AHMA (Ambitions Enterprise Management) rising nearly 134%, and ICUCW (SeaStar Medical Holding) gaining over 93%. The sharp moves indicate heightened speculative activity and stock-specific triggers.
Steep Decliners
On the downside, LEXXW (Lexaria Bioscience) plunged 80%, marking the steepest fall of the session. CODX (Co-Diagnostics) declined over 60%, while MTEN (Mingteng International) fell 56%. SGN (Signing Day Sports) and BFLY (Butterfly Network) also posted heavy losses of more than 50% and 49%, respectively.
Most Active by Share Volume
Trading activity remained elevated in select counters. Beyond Air (XAIR) topped the volume charts with over 401 million shares traded, closing at $2.19. It was followed by Oriental Culture Holding (OCG), SOXS, ASST, and MTEN, reflecting strong retail participation and short-term trading interest.
Most Active by Dollar Volume
In terms of dollar turnover, SPDR S&P 500 ETF (SPY) remained the most active, closing slightly lower at $693.87. NVIDIA (NVDA) gained 0.47% to $185.81, bucking the broader cautious tone. Meanwhile, Tesla (TSLA), Invesco QQQ (QQQ), and Microsoft (MSFT) ended the session in the red, with Microsoft slipping over 1.3%.
