Stock futures and global stock indexes fell as concerns mounted about Russia’s intensifying military campaign in Ukraine (live coverage). Russia’s central bank kept the Moscow stock market largely closed for a fifth straight day. Here’s what we’re watching in Friday’s trading:

• Splunk shares added 1.6% premarket. Private-equity firm Hellman & Friedman has taken a 7.5% stake in the software company worth about $1.4 billion, according to people familiar with the matter.
• Marvell Technology shares fell 2.9% premarket. The chip maker’s results beat Wall Street targets and revenue reached $1.34 billion, the third consecutive quarter of more than a billion dollars in revenue.
• Gap gained 7.4% premarket after the clothing retailer beat expectations with fourth-quarter results and annual forecast.
• Smith & Wesson Brands plunged 22% premarket after the gun maker reported an earnings miss for the holiday quarter as sales fell more than 30%.

• Broadcom climbed 3.1%. The chip and software company’s results and outlook topped Wall Street forecasts, and its share buybacks reached $2.7 billion out of a planned $10 billion for the year.
• Costco Wholesale slipped 2% after the warehouse retailer reported better-than-expected profit and sales in the second quarter.
• Travel stocks were having a rough day. Cruise operators Carnival and Royal Caribbean dropped 4.3% and 1.6% respectively, and Airbnb shed 2.8%. American Airlines fell 2.4% and United Airlines shed 2.2%.
• Electric-vehicle makers were also losing some juice. Tesla slipped 1%, China’s NIO fell 2.9%, Lucid Group was down 1.1% and Lordstown Motors shed 2.6%.
• Amazon.com edged down 1% premarket. The e-commerce giant has given the FTC a fast-approaching deadline to deliver a verdict on its proposed $6.5 billion acquisition of the MGM movie and television studio, a move that could make it difficult for the agency to challenge the deal before the tech giant completes it.

Chart of the Day

• Businesses are choosing to postpone or cancel equity-raising transactions as markets seesaw.

Write to James Willhite at james.willhite@wsj.com