Stocks that moved substantially or traded heavily on Monday:
General Electric Co., up $1 to $28.94
The industrial conglomerate said CEO Jeffrey Immelt will step down in August after 16 years.
Apple Inc., down $3.56 to $145.42
Technology companies, particularly big names, took further losses following Friday's drop.
ConocoPhillips, up 90 cents to $45.72
Energy companies rose with the price of oil Monday.
AT&T Inc., up 28 cents to $39.07
Phone companies and other sectors that have underperformed the market climbed on Monday.
PG&E Corp., down $1.08 to $67.33
Companies that have done well this year, including utilities, slumped as investors looked for the next strong performers.
Ascena Retail Group Inc., up 19 cents to $2.39
Smaller-company stocks did better than the remainder of the market Monday.
Coherus BioSciences Inc., down $4.92 to $15.73
The Food and Drug Administration wants more data on the company's version of Amgen's anemia drug Neulasta.
Golden Entertainment Inc., up $3.07 to $20
The gaming services company said it will buy American Casino and Entertainment Properties for $850 Million.