U.S. stock futures wobbled Tuesday, suggesting that the S&P 500 will hover close to its record at the opening bell following the long holiday weekend.

Futures tied to the S&P 500 wavered between tepid gains and losses. The broad market gauge edged lower on Friday after the Labor Department’s employment report showed the pace of hiring slowed significantly in August.

Nasdaq-100 futures ticked down 0.1% Tuesday, suggesting that large technology stocks will pull back when markets open.

Stocks have ground higher in recent weeks, lifted by strong corporate earnings and the economic recovery. But investors say they are now waiting to see if the Federal Reserve may delay plans to begin scaling back easy-money policies because of the risks from fresh Covid-19 outbreaks and concerns that growth may cool.

“People are seeing the slowdown in the economy and the outlook becoming somewhat more opaque and therefore it is understandable that people wouldn’t want to jump in and put money to work,” said Willem Sels, global chief investment officer at HSBC Private Bank. “There are valid concerns about Delta, about Chinese and global growth and inflation, and it is natural that people want more visibility,” he said.

Fresh data Tuesday showed that China’s exports unexpectedly jumped in August. Economists had been bracing for a slowdown in shipments after an outbreak of Covid-19 cases in the nation closed coastal ports and created new bottlenecks for shippers during the peak late-summer season.

Ahead of the New York market opening, Match Group surged over 14% after S&P Dow Jones Indices said the online dating company would be included in the S&P 500 index.

The yield on the benchmark 10-Year U.S. Treasury note ticked up to 1.367%, from 1.322% on Friday. Yields rise when bond prices fall. The bond market was also closed Monday for the Labor Day holiday.

In commodity markets, Brent crude, the international benchmark in energy markets, edged down 0.2% to $72.05 a barrel.

Stock futures suggested major Wall Street indexes would pause at the open.

Photo: Richard Drew/Associated Press

Overseas, the Stoxx Europe 600 edged down 0.3%.

Major stock markets in Asia mostly closed higher. Japan’s Nikkei 225 rose 0.9%, while in Hong Kong, the Hang Seng Index gained 0.7%. The Shanghai Composite Index rose 1.5%.

Write to Will Horner at William.Horner@wsj.com