Check out the companies making headlines in midday trading. Plug Power — The hydrogen fuel cell developer jumped 24% after signing a deal to issue up $525 million in secured debentures. The company also issued first-quarter guidance of between $130 million to $134 million, compared with LSEG consensus of $131.6 million. NIO — The Chinese electric vehicle stock popped 5% after Citi added an upside 30-day catalyst watch on the name. Analyst Jeff Chung said that he expects NIO to launch new models much earlier than consensus had expected. ADMA Biologics — The biotech stock climbed 10% after gaining FDA approval of its innovative yield enhancement production process in the U.S. This process can increase production yields by 20% from the same starting plasma volume. Nvidia — The chipmaker shed more than 3% after The Wall Street Journal reported that Huawei Technologies will be soon testing its newest AI processor, which the company hopes could be a competitor to some of Nvidia's products. Peloton — Shares advanced 5% on the back of Truist's upgrade to buy from hold. Truist said the company has cleaned up the "BS" and should start to see a gradual recovery from improving fundamentals. Boeing — Shares of the airplane manufacturer gained about 2% after Bernstein upgraded the stock to outperform from market perform. Analyst Douglas Harned said Boeing "should be on a much firmer path than in 2023" as the company makes progress from scrutiny and supply chain concerns. Boeing is recovering from the 2024 Alaska Airlines controversy, as well as two Boeing 737 Max plane crashes prior to that, the analyst said. Progressive — The insurance stock rose 1% after an upgrade to buy from neutral at Bank of America. Progressive has upside after its recent stock price decline and strong March results, the investment firm said, as it reversed a downgrade earlier this month by the same analyst. On Holdings — Shares of the Swiss athletic shoe company jumped more than 2% on the back of Citi's upgrade to buy from neutral. The firm said On is one of the best positioned to navigate the tariff uncertainty. Cognex — The machine vision systems manufacturer added more than 2% following an upgrade to buy from hold at TD Cowen. Zscaler — Shares popped 1% after BNP Paribas upgraded the cloud security stock to an outperform rating from neutral. BankUnited — The regional bank stock fell 2%. BankUnited disappointed expectations for net interest income, reporting $233.1 million compared to the $239.9 million anticipated by analysts polled by FactSet. Its net interest margin of 2.81% fell below the consensus estimate of 2.86%, reflecting the "impact of declining rates on a modestly asset sensitive balance sheet," the company said. On the other hand, earnings 78 cents per share topped the expected 75 cents per shar. — CNBC's Alex Harring, Hakyung Kim, Sarah Min, Jesse Pound and Pia Singh contributed reporting.