Constellation Energy (CEG) priced an underwritten secondary offering of 11 million shares at $281 apiece, it said Monday.

Shares were down 6%, with intraday trading volume rising to nearly 6.7 million from the stock's daily average of about 3.1 million.

Deutsche Bank downgraded AST SpaceMobile (ASTS) to hold from buy while cutting its price target to $106 from $117.

Shares of AST were down 6%, with intraday trading volume rising to over 20 million from a daily average of about 18.6 million.

Nvidia (NVDA) has unveiled an artificial intelligence chip, RTX Spark, to power Microsoft (MSFT) Windows personal computers. RTX Spark marks Nvidia's formal entry into the consumer PC processor market, a Wedbush Securities note said on Monday. The foray could hurt Intel (INTC) in particular, Wedbush analyst Matt Bryson wrote in the note.

Shares of Intel slipped 3.3%, with intraday trading volume rising to over 95.1 million from a daily average of about 120.6 million.

Price: 106.55, Change: -6.86, Percent Change: -6.05