Profusa (PFSA) stock was down 45% on Thursday after its Q2 net loss widened.
Intraday trading volume stood at over 689,000, versus a daily average of about 1 million.
Rising Dragon Acquisition (RDAC) said Thursday it received a non-compliance notification from the Nasdaq exchange after the company's market capitalization stayed under the $35 million floor for 30 straight business days.
Shares were down roughly 29% while more than 221,000 shares were traded intraday, against a daily average of about 276,000.
Advance Auto Parts' (AAP) fiscal Q2 comparable sales declined unexpectedly amid weakness in the do-it-yourself channel, although the auto parts retailer lifted its full-year earnings outlook.
Shares fell about 26%, with over 11.5 million shares traded, compared with a daily average of nearly 1.9 million.
Price: $7.28, Change: $-6.29, Percent Change: -46.35%