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Pulse Biosciences (NASDAQ: PLSE) shares advanced 8.10% to $32.71, likely on clinical or regulatory progress in its pulsed field ablation or related pipeline programs.
Microalliance Group (OTC: MALG) shares surged 224.54% to $1.76, an extreme move typical of low-float, low-volume OTC and microcap stocks.
Arrowhead Pharmaceuticals (NASDAQ: ARWR) shares rose 21.67% to $90.67, benefiting from ongoing positive momentum around the commercial launch of REDEMPLO (plozasiran) for familial chylomicronemia syndrome.
Super Micro Computer (NASDAQ: SMCI) shares surged 20.48% to $30.72 after preliminary Q4 results showed a record backlog with new AI server orders exceeding $60 billion and raised gross margin guidance to 15-17%.
Novagold Resources (NYSE American: NG) shares rose 11.28% to $6.27 amid broader interest in resource and mining stocks.
LB Pharmaceuticals (NASDAQ: LBRX) shares rose 11.14% to $35.91, with the gain likely stemming from pipeline progress, clinical updates, or positive sentiment in the biotech sector.
Penske Automotive Group (NYSE: PAG) shares rose 10.15% to $215.01, one of the day's notable gainers, likely driven by strong automotive retail trends, vehicle sales data, or sector momentum in consumer discretionary and auto names.
ArriVent BioPharma (NASDAQ: AVBP) shares advanced 9.84% to $31.04, a move consistent with pipeline momentum or clinical data updates typical for development-stage companies in oncology or related areas.
Vertex shares are tumbling further and touching fresh 52-week lows, extending a sharp two-day decline sparked by Morgan Stanley's downgrade to Equalweight from Overweight and a price target cut to $15 from $19.
ERock (EROC) shares fell about 7% despite J.P. Morgan reiterating a Buy rating and $24 price target, as investors continue to weigh the post-IPO stock's ongoing volatility against bullish long-term analyst sentiment tied to its exposure to AI data center power demand.
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