U.S. stock futures wavered Monday, suggesting major indexes will hover close to record highs after the S&P 500 posted its biggest weekly advance since February.

Futures for the broad market gauge, which closed Friday at its 31st all-time high of the year, drifted between muted gains and losses. Contracts on the Dow Jones Industrial Average edged 0.1% lower. Futures for the Nasdaq-100 ticked up 0.2%, pointing to modest gains for technology stocks.

Shares have marched higher since mid May, boosted by a robust economic recovery, the prospect of further fiscal stimulus and low bond yields that prompted investors to snap up stocks. Some investors are nonetheless concerned the market could hit a rough patch amid signs that growth has peaked as well as jitters over the outlook for inflation and monetary policy.