02:08 PM EDT, 07/16/2026 (MT Newswires) -- QumulusAI's ( QMLS ) common shares have begun trading on the Nasdaq Global Market under the ticker symbol "QMLS," according to a statement released Thursday.

Shares sank 59%, with intraday trading volume at more than 74,000.

AST SpaceMobile ( ASTS ) priced a private offering of $1 billion aggregate principal amount of 1.625% convertible senior notes due 2034, the company said late Wednesday.

Shares slumped 19% as intraday trading volume catapulted to over 36.5 million from a daily average of about 22.3 million.

ASP Isotopes ( ASPI ) said the company and its wholly owned subsidiary, Quantum Leap Energy, have entered into private exchange agreements with certain holders of the unit's outstanding convertible promissory notes, according to a statement released late Wednesday.

Under the terms, certain holders of QLE Notes have agreed to exchange about $109.2 million of QLE Notes for roughly 23.2 million shares of ASP common stock, representing almost 18% of ASP's common stock.

Shares of ASP declined 11%, with intraday trading volume rising to over 4.95 million from a daily average of roughly 4.90 million.

Price: 4.03, Change: -0.56, Percent Change: -12.12