Stocks indexes rose slightly on Monday as investors looked ahead to Twitter's highly-anticipated public offering later this week and the Labor Department's employment survey on Friday.
The Dow Jones industrial average rose 19 points, or 0.1 percent, to 15,634 points after the first 30 minutes of trading Monday. The Standard & Poor's 500 index was up one point at 1,763. The Nasdaq composite rose one point to 3,923.
Nine of the 10 industry groups in the S&P 500 rose, led by energy and consumer staples. Utilities were the one sector to decline.
Food distributor Sysco rose after earnings beat analyst estimates. Its stock rose $1.50, or 4.5 percent, to $34.06.
Kellogg rose $2.66, or 2.7 percent, to $63.95 after saying it will cut its workforce 7 percent after seeing weaker-than expected sales for the year.
BlackBerry plunged 85 cents, or 11 percent, to $6.92 after the company said it was calling off its effort to find a buyer and would replace its CEO. The smartphone maker has been losing customers to Apple's iPhones and phones that run Google's Android software.
Stocks in rose Europe. Germany's DAX and the CAC-40 in France both rose 0.4 percent. The FTSE 100 in Britain rose 0.6 percent. Japan and India's stock markets were closed for public holidays.
Prices for petroleum products fell. Benchmark West Texas Intermediate oil edged down 28 cents to $94.89.
The yield on the 10-year Treasury note fell to 2.60 percent from 2.62 percent.