NEW YORK (AP) -- Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and the Nasdaq Stock Market:
Navistar International Corp., up $1.21 to $37.55
The Pentagon awarded the truck and engine maker a contract modification worth nearly $7 million in a field service support role.
Puma Biotechnology Inc., up $7.43 to $110.10
The biotech company released an update on its experimental breast cancer drug, which Cowen & Co. analysts called "encouraging."
Herbalife Ltd., down $2.26 to $78.55
Investor Bill Ackman fired off a seven-page letter reiterating claims that the nutritional supplement company is a pyramid scheme.
Westmoreland Coal Co., up $1.75 at $17.37
The Colorado company is buying Canadian coal mining operations for $435 million, which could help it double its current coal production.
Supernus Pharmaceuticals Inc., up 98 cents to $8.38
Regulators approved the pulmonary arterial hypertension treatment that the drug maker helped develop with United Therapeutics.
CalAmp Corp., down $1.93 to $25.63
The wireless communications company issued a financial outlook that fell well short of what Wall Street had expected.
Tesla Motors Inc., up $7.86 to $151.41
The electric car company said that federal regulators reaffirmed the five-star safety rating of its 2014 Model S sedan.
Cracker Barrel Old Country Store Inc., up $1.99 to $112.38
The restaurant chain's largest shareholder is pushing the company to consider selling itself and may make a bid.