Stocks making the biggest moves midday(1):

$Lockheed Martin(LMT.US)$
– Shares of the aerospace and defense contractor gained more than 2% on Tuesday after it beat Wall Street’s expectations in the first quarter and reaffirmed its full-year guidance. The company posted earnings of $6.61 per share on revenue of $15.13 billion. Analysts called for earnings of $6.06 per share and revenue of $15.03 billion, according to Refinitiv.
$PowerSchool(PWSC.US)$
– The educational technology stock added 3.5% after Goldman Sachs upgraded shares to buy from neutral. The firm said the company is a leader in the space and can drive growth through international expansion and cross-selling products.
$NVIDIA(NVDA.US)$
– The chipmaker saw shares rise more than 3% after HSBC gave them a double upgrade, saying investors aren’t fully pricing in Nvidia’s “incredible AI pricing power” into the stock. The company could extend its 85% year-to-date rally even further, according to HSBC.
$Chubb Ltd(CB.US)$
– Shares climbed 1% after Citi upgraded Chubb to buy from neutral. The Wall Street firm said the property and casualty brokerage is a buying opportunity, given its “incremental strength in reserves.” The firm expects Chubb’s “high-net-worth exposure skew is relatively more insulated from negative inflationary/economic risk.”
$Microsoft(MSFT.US)$
– The tech giant were down slightly with a 0.4% decline in midday trading. Microsoft stock closed about 1% higher on Monday following a weekend report from The New York Times that Samsung phones may move to switch their default search engine to Bing and away from Google.