Check out the companies making headlines midday Monday:
Apple — Shares rallied 3.5% as its long-awaited 4-for-1 stock split took effect. That gain made the tech giant the best-performing Dow component and put the stock up more than 30% since the split was announced July 30.
Tesla — The stock popped more than 8% in the final day of August as investors snapped up the popular electric car company on the back of a 5-for-1 stock split announced earlier this month.
Virgin Galactic — A Cowen analyst initiated Virgin Galactic with an outperform rating, sending the stock up 0.5%. In a note to clients, the analyst said Virgin Galactic "is uniquely positioned to benefit from the growing consumer interest toward luxury experiences, especially among high-net-worth individuals."
Walmart — Shares of the retailer slipped over 3% following a downgrade to hold at R5 Capital. "We see a more muted outlook for sales over the next 12 months," the firm said on Monday. R5 Capital has a $147 target on the stock, which is abut 9% above where it currently trades.
Beyond Meat — Beyond Meat gained more than 2% after Citi upgraded the alternative meat company to neutral from sell. The bank said it expect more food-service operators to add plant-based meat offerings to their menus, and Beyond Meat will get more market share over time both in the U.S. and overseas. The stock has soared more than 75% this year amid a surge in demand.
Rackspace Technology — Shares of the cloud company jumped 5.7% after a host of Wall Street firms initiated coverage on the stock. Goldman Sachs, Barclays, Deutsche Bank, BMO Capital markets and Evercore ISI all gave the company buy-equivalent ratings. "We expect RXT to sustain 20%+ FCF growth in a consistent manner driven by high single digit sales growth, stable to modestly improving margins and lower capex," Evercore ISI said in a note to clients.
Alexion Pharmaceuticals — The health care stock popped 7.8% after SVB Leerink said in a note that the company was well positioned for industry competition for treatments for a rare blood disease. The firm said that Alexion's market valuation is "significantly underappreciated" and could be a takeover target for larger pharmaceutical companies.
Amazon — Amazon shares rose 2% after the Federal Aviation Administration approved the e-commerce giant's plans to operate a fleet of drones for its Prime Air delivery service.
—CNBC's Pippa Stevens, Yun Li, Michael Bloom and Jesse Pound contributed to this report.