The Nasdaq 100 fell in midday trading Wednesday as investors reacted to news that sales of existing homes fell in March and watched as oil prices continued to climb higher.
The index, which includes 100 of the largest nonfinancial securities listed on the Nasdaq Stock Market, fell 6.14 points to 1,984.47 in midday trading. The broader Nasdaq composite fell 4.57 points to 2,478.74.
Shares of Cognizant Technology Solutions Corp. fell $3.26, or 9.7 percent, to $30.48. The information technology and outsourcing company guided its second-quarter profit below Wall Street's expectations.
Shares of Infosys Technologies Ltd. lost $1.95, or 4.3 percent, to $43.85.
Shares of truck maker Paccar Inc. shed $1.59, or 3.2 percent, to $48.21.
On the gaining side, shares of Cephalon Inc. jumped $3.35, or 5.6 percent, to $63.45. Analysts said Wednesday the drug maker may eventually convince the Food and Drug Administration to let it use its pain drug Fentora for non-cancer pain.
Shares of Hologic Inc. gained 75 cents, or 3.4 percent, or $22.85.
Shares of Liberty Global Inc. increased 78 cents, or 2.2 percent, to $36.90.