Lowe's, Macy's, Xpeng rise premarket; Palo Alto, Zoom fall

Investing.com -- U.S. stock futures traded largely flat Tuesday, as investors reacted with caution ahead of more speeches from Federal Reserve officials about the potential for future interest rate cuts.

Here are some of the biggest premarket U.S. stock movers today:

• Lowe’s (NYSE:LOW) stock rose 2.1% after the home improvement retailer reported first-quarter net sales that topped expectations, boosted by growth in its online offerings and services for professionals.

• Palo Alto Networks (NASDAQ:PANW) stock fell 8% after the cybersecurity firm’s latest billings forecast disappointed elevated expectations, with the company facing weakness in spending by clients concerned by an uncertain economic environment.

• Macy’s (NYSE:M) stock rose 3.9% after the department store’s first-quarter earnings topped expectations, raising its full-year earnings expectations as it saw early signs of momentum in its turnaround strategy.

• Nvidia (NASDAQ:NVDA) stock rose 0.6%, continuing the previous session’s positive tone with investors largely expecting yet another strong earnings display from the AI chip titan on Wednesday.

• Xpeng (NYSE:XPEV) stock rose 5.4% after the Chinese electric-vehicle maker reported better-than-expected first-quarter numbers, despite the very competitive market.

• Peloton (NASDAQ:PTON) stock fell 3.1% after Bloomberg reported the integrated fitness company launched a $1 billion loan to refinance existing debt.

• Zoom (NASDAQ:ZM) stock fell 2.9% after the video conferencing giant--a pandemic-era favorite--unveiled a broadly cautious outlook for its current quarter and fiscal year.

• AstraZeneca (NASDAQ:AZN) ADRs rose 1.1% after the pharmaceutical giant announced it now expects to post $80 billion in total revenue by the beginning of the next decade, after sales of $45.8 billion in 2023.