Wall Street's meme-stock madness extended to more companies Tuesday, with
$ProKidney(PROK.US)$ and other names rising more than 25% despite no apparent news.
ProKidney -- a volatile biotech that's developing kidney-disease treatments – gained 33.8% to close at $4.12 even though the company had no news or other no obvious catalysts for the rally.
The stock has had a volatile history ever since going public in 2...