Coca-Cola, General Motors and Philip Morris fall premarket; Northrop Grumman rises

Investing.com -- U.S. stock futures traded in a subdued manner Tuesday, as the quarterly earnings season kicks into top gear.

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

• Coca-Cola (NYSE:KO) stock fell 0.5% after the soft drinks giant grapples with tariff-driven headwinds, even while it reported better-than-expected second-quarter profit and said it expects to post adjusted per-share earnings growth at the high end of its prior guidance.

• General Motors (NYSE:GM) stock fell 3.6% after the auto giant’s second-quarter profit declined significantly from last year due to weaker performance in its crucial North American market.

• Northrop Grumman (NYSE:NOC) stock rose 3.3% after the defense company raised its annual profit forecast, betting on sustained demand for its military aircraft and defense systems as geopolitical tensions simmer.

• Philip Morris (NYSE:PM) stock fell 4.1% after the tobacco giant reported second-quarter revenue that came in below expectations despite strong growth in its smoke-free business.

• Rtx Corp (NYSE:RTX) stock fell 3.7% after the aerospace and defense company cut its full-year adjusted earnings per share guidance, despite reporting strong second-quarter results that exceeded expectations.

• Halliburton (NYSE:HAL) stock fell 0.2% after the oilfield services firm reported a fall in profit for the second quarter on Tuesday, hurt by weak North America demand.

• DR Horton (NYSE:DHI) stock rose 6.9% after the home construction company reported fiscal third-quarter earnings that surpassed expectations, delivering 23,160 homes during the quarter, exceeding the high end of its guidance range.

• Danaher (NYSE:DHR) stock fell 1.9% after the life sciences firm delivered stronger-than-expected second-quarter results and lifted its full-year profit outlook.

• U.S. coal miners Peabody Energy (NYSE:BTU) and Warrior Met Coal (NYSE:HCC) rose strongly as China’s coking coal prices surged amid market speculation about government inspections in major production hubs.

• Northern Trust (NASDAQ:NTRS) rose 2.7% following a report by Semafor that Goldman CEO David Solomon held talks about a $25 billion takeover of the wealth management firm earlier this year.

• NXP Semiconductors (NASDAQ:NXPI) stock fell 6.6% after the company reported a decline in sales for the second quarter, hurt by slow demand in the automotive market.

• Steel Dynamics (NASDAQ:STLD) stock fell 2.2% after the structured metal company’s second-quarter revenue fell short of expectations, adding that the trade uncertainty is still causing customers to hesitate before making purchases.

• Zions Bancorp (NASDAQ:ZION) stock rose 1.8% after Jefferies upgraded the regional lender to “hold” from “underperform“, citing its strong second-quarter performance.