The Arkansas Index, a price-weighted index that tracks the largest public companies based in the state, fell 0.35 to 333.35 Monday.
"Despite a bank and bond market holiday and no major catalysts to fuel the market's direction, the major averages managed to continue last week's upward momentum amid a quiet trading day," said Bob Williams, senior vice president and managing director of Simmons First Investment Group Inc. in Little Rock.
Tyson Foods established a 52-week high and closed up about 1.5 percent on below-average volume, Williams said.
Murphy Oil fell 3 percent in active trading.
Total volume of the index was 15.3 million shares.
The index was developed by Bloomberg News and the Democrat-Gazette with a base value of 100 as of Dec. 30, 1997.
Business on 10/13/2015