Check out the companies making headlines in midday trading: Hewlett Packard Enterprise — The cloud services company saw shares jump 5.1% after news that Elliott Management has taken a $1.5 billion stake in the company. Elliott Management hopes to engage the company in discussions on how to improve shareholder value, a person familiar with the matter told CNBC. Boeing — The aerospace stock fell 2.4% on the heels of Bloomberg, citing people familiar with the matter, reporting that Beijing ordered Chinese airlines not to take any further Boeing plane deliveries and halt purchases of aircraft equipment from U.S. companies. Bank of America — Shares jumped 3.6% after Bank of America reported first-quarter results that exceeded analysts’ expectations as net interest income and trading revenue outperformed. The bank posted earnings of 90 cents per share on revenue of $27.51 billion. Analysts polled by LSEG had called for earnings of 82 cents per share on revenue of $26.99 billion. Albertsons — The grocery store stock dropped around 7.6% after Albertsons issued full-year earnings guidance that was below expectations. The company estimates adjusted earnings between $2.03 and $2.16 per share, while analysts polled by FactSet expected $2.28 per share. Albertsons still exceeded earnings and revenue forecasts for its fiscal fourth quarter. Citigroup — The bank stock advanced nearly 4% after it reported better-than-expected results, driven by gains at its fixed income and equities trading units. Citi reported earnings of $1.96 per share on revenue of $21.50 billion. Analysts estimated the bank would earn $1.85 per share on $21.29 billion in revenue. Netflix — The streaming platform popped 4.8% after The Wall Street Journal reported Netflix executives shared growth targets at an annual business review meeting last month that included achieving a $1 trillion market capitalization and doubling its revenue by 2030. Rocket Lab — Shares of the space-tech developer jumped 10.1% after announcing new deals for hypersonic craft with the U.S. Air Force and U.K. Ministry of Defense. Coty — The beauty company declined almost 8.5% after Bank of America downgraded shares to underperform from buy amid weakness in consumer spending. Mobileye — The autonomous driving company dropped 4.5%. Barclays lowered its rating on shares to equal weight from overweight, citing headwinds from tariffs, overhangs on auto tech investment and risks to consumers. Howmet Aerospace — The aircraft manufacturer pulled back around 2.4% after Wells Fargo downgraded the stock to equal weight from overweight. The firm cited an expensive valuation and lower likelihood of beats and raises as the economy weakens. Dow — Shares of the chemical company dropped about 4.1% after Bank of America downgraded the stock to underperform from buy. The firm said Dow is facing a “perfect storm” of negative factors, including a slowing economy and higher trade barriers. — CNBC’s Lisa Kailai Han, Pia Singh, Yun Li and Sean Conlon contributed reporting. Get Your Ticket to Pro LIVE Join us at the New York Stock Exchange! Uncertain markets? Gain an edge with CNBC Pro LIVE , an exclusive, inaugural event at the historic New York Stock Exchange. In today’s dynamic financial landscape, access to expert insights is paramount. As a CNBC Pro subscriber, we invite you to join us for our first exclusive, in-person CNBC Pro LIVE event at the iconic NYSE on Thursday, June 12. Join interactive Pro clinics led by our Pros Carter Worth, Dan Niles and Dan Ives, with a special edition of Pro Talks with Tom Lee. You’ll also get the opportunity to network with CNBC experts, talent and other Pro subscribers during an exciting cocktail hour on the legendary trading floor. Tickets are limited!