02:10 PM EDT, 07/20/2026 (MT Newswires) -- QumulusAI ( QMLS ) reported Monday the purchase of 1,632 Nvidia (NVDA) Blackwell B300 GPUs to meet demand for AI compute, with funding mainly through Technology Finance Corporation and USD.ai.

Shares of QumulusAI ( QMLS ) fell 33%, with intraday trading volume of over 316,000 versus a daily average of about 187,000.

Barclays downgraded Penguin Solutions ( PENG ) to underweight from equal weight, with a price target of $40.

Late Friday, Penguin said it has closed its offering of $750.0 million of 0.00% convertible senior notes due 2031.

Shares fell 11% as intraday trading volume jumped to over 4.2 million from a daily average of about 3.8 million.

Tempus AI ( TEM ) agreed to acquire Personalis ( PSNL ) for a total enterprise value of $1.5 billion. Needham downgraded Personalis ( PSNL ) shares to hold from buy.

Shares of Personalis ( PSNL ) slumped 12% as trading volume climbed up to over 9.5 million from a daily average of about 3.6 million.

Price: 9.63, Change: -4.65, Percent Change: -32.56