Tesla, Alphabet, Visa fall premarket; AT&T, Texas Instruments rise

Investing.com -- U.S. stock futures fell Wednesday, with disappointing results from a couple of tech giants hitting sentiment in the early days of the new earnings season.

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

• Tesla (NASDAQ:TSLA) stock slumped 8.6% after the electric vehicle manufacturer after its second-quarter earnings missed estimates amid falling vehicle sales, and profit margins fell to a five-year low.

• Alphabet (NASDAQ:GOOGL) stock fell 3.7% after the tech giant’s expenses rose substantially year-on-year amid continued expenditure on AI development - a trend that is expected to eat into profit margins in the coming quarters.

• Trump Media & Technology (NASDAQ:DJT) stock fell 3.2% after a new poll saw likely Democratic presidential candidate Kamala Harris leading Republican nominee Donald Trump in the race for the White House.

• Visa (NYSE:V) stock fell 3.3% after the credit card giant’s third-quarter revenue growth fell short of expectations as steep borrowing costs limited consumer spending.

• Texas Instruments (NASDAQ:TXN) stock rose 2.2% after the chipmaker reported a solid earnings beat for the second quarter, with adjusted earnings per share surpassing the estimates.

• AT&T (NYSE:T) stock rose 3% after the telecoms giant exceeded market expectations for wireless subscriber additions in the second quarter, as its higher-tier unlimited plans attracted customers.

• Enphase Energy (NASDAQ:ENPH) stock rose 3.7% after the solar inverter maker beat expectations for second-quarter operating profit, driven by a recovery in demand in the United States.

• Boston Scientific (NYSE:BSX) stock rose 0.8% after the medical devices manufacturer beat second-quarter profit expectations on a hefty rise in sales of its products to treat cardiovascular problems.

• Deutsche Bank (ETR:DBKGn) (NYSE:DB) stock fell 4.9% after the German lender posted its first loss in four years in the second quarter after setting aside well over $1 billion as a provision for an investor lawsuit, scuppering plans for a stock buyback.