NEW YORK (AP) -- Stocks that moved substantially or traded heavily Friday on the New York Stock Exchange and Nasdaq Stock Market:
Navistar International Corp., down $4.37 at $24.42
Investors worried that getting a crucial new engine approved by federal regulators would add to the engine and truck maker's costs.
Salesforce.com Inc., down $6.67 at $135.75
Shares of the business software maker fell after a weak forecast from Informatica, another business software supplier.
Christopher & Banks Corp., down 13 cents at $1.36
The women's clothing retailer rejected a $64.2 million buyout offer from investment firm Aria Partners.
Informatica Corp., $11.98 at $31.39
Several analysts downgraded the business software company after it said the weak economy, especially in Europe, hurt second-quarter results.
Seagate Technology PLC, down 13 cents at $24.96
The company cut its guidance for the three months ended in June because it shipped fewer hard drives than expected.
LaCrosse Footwear Inc., up $8.91 at $19.89
Japanese sneaker and shoe retailer ABC-MART is buying the work-boot maker for about $138 million.
A123 Systems, Inc., down 14 cents at $1.16
The electric car battery maker is selling 7.7 million shares to existing investors, landing it about $9 million in much-needed cash.
Acme Packet Inc., down $2.66 at $15.74
The phone and data network equipment maker forecast disappointing second-quarter results, hurt by soft demand in North America.