SeaStar Medical’s stock more than doubles in 2 days to get back above the $1 level

Shares of SeaStar Medical Holding Corp.
ICU,
+43.96%
rocketed 45.3% on heavy volume in premarket trading Thursday, to take them back above the $1 mark for the first time in five months. Trading volume spiked to 21.4 million shares ahead of the open, to already match the full-day average. The Colorado-based medical devices company’s stock has more than doubled in two days, as it ran up a record 70.1% on record volume of 179.5 million shares on Wednesday after the U.S. Food and Drug Administration granted breakthrough device designation for the company’s device used with patients in intensive care units with acute kidney injury and chronic liver failure. Still, the stock has tumbled 81.2% year to date, while the S&P 500
SPX,
+0.02%
has gained 12.4%.