Check out the companies making headlines in midday trading: JetBlue — Shares sank 13% after the airline said it plans to sell $400 million of five-year convertible senior notes. Hawaiian Electric Industries — Shares plummeted more than 16% after the utility said it does not yet have a financing plan for the $1.7 billion Maui windstorm and wildfire settlement payment. Hawaiian Electric also reported a consolidated net loss of $1.3 billion, or $11.74 per share, in the second quarter, including charges for goodwill impairment. Last year, the company posted a net income of $55.1 million during the period. KeyCorp — The Cleveland-based regional bank surged 13% after The Bank of Nova Scotia agreed to take a minority position, making KeyCorp the top performer in the S & P 500 on Monday. Under the terms of the deal, KeyCorp will receive about $2.8 billion in cash, while Scotiabank will eventually get a 14.9% stake in the lender. Monday.com — Shares surged about 12%, hitting a new 52-week high, after the Israel-based software company posted better-than-expected second-quarter results. Monday.com earned 94 cents per share, excluding items, on revenue of $236.1 million. Analysts polled by FactSet had estimated 56 cents per share on $229 million in revenue. Marathon Digital — The cryptocurrency miner fell about 7% after announcing a $250 million private debt offering of seven-year notes. Starbucks — The coffee chain jumped nearly 4% after The Wall Street Journal reported that activist investor Starboard Value, led by Jeff Smith, has built a stake. Starboard is urging Starbucks to take steps to boost its stock price, the Journal reported, citing unidentified people familiar with the matter. Qualcomm — This chipmaker lost about 2%. Wolfe Research downgraded Qualcomm to peer perform from outperform, citing the effect of Apple using its own internal modem. Robinhood — Shares of the online brokerage gained 2.5% after Piper Sandler upgraded it to overweight from neutral. Piper Sandler expects Robinhood to benefit from “continued growth in global retail & derivatives trading” and “generational wealth transfer from baby boomers to their children,” among others, in the long term. Par Technology — The restaurant technology stock added 1.8% following a Jefferies upgrade to buy from hold. The bank said Par now has scale and momentum supporting it. — CNBC’s Alex Harring, Samantha Subin, Yun Li, Jesse Pound and Michelle Fox contributed reporting.