The tech sector was dragged down by lackluster sales from chipmaker Nvidia as the US stock market gave up early gains.
The company's sales were below expectations due to lower demand for gaming chips. The Philadelphia Semiconductor index lost more than 2%.
Semiconductor shortages still ravage supply chains despite the US trying to bulk up domestic production.
The Bureau of Labor Statistics will release its consumer price index for July on Wednesday.
Shortly after 4:30 p.m., the US index stood here. On Monday, the closing bell will be rung.
Retail investors may have caught a second wind as meme stocks are on the rise again. Bed Bath & Beyond jumped as much as 44% Monday.
Europe is struggling to fill a void left by Russia's invasion of Ukraine as the US exports large swathes of waste-wood pellets. Since the beginning of the year, exports of pellets have surpassed levels from the previous year.
The recent slump in oil prices could be reversed as demand increases and supply tightens.
West Texas Intermediate crude went up 2% to $90.85 a barrel, while international benchmark crude went up 1% to $96.33
The price of gold was higher. The yield on the 10-year Treasury declined.
There was a 3% increase in the price of the digital currency, to $23,853.87.