The following stocks were among those that moved substantially or traded heavily Friday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE:

Alcoa Inc., up $1.11 to $14.61

A JPMorgan analyst boosted his profit estimates on the aluminum maker because he expects metal prices will rise next year.

Christopher and Banks Corp., up $1.62 to $7.64

Better merchandise assortment and lower prices prompted the women's apparel retailer to post a rosy outlook.

IMS Health Inc., down $1.31 to $20.05

The Senate introduced legislation that would effectively ban pharmaceutical data mining, potentially harming the company's business.

Delta Air Lines Inc., up $1.37 to $11.25

Oil prices that dipped below $70 and economic data that pointed at a stronger U.S. consumer drove airline shares higher.

National Semiconductor Corp., down 55 cents to $14.73

The chip maker's quarterly results beat Wall Street expectations, but analysts worried about losses in market share.

NCR Corp., up 93 cents to $10.72

An analyst said the ATM and self-serve kiosk maker would get a sales boost from making kiosks for video chain Blockbuster.

Macy's Inc., up $1 to $17.02

The department store was one of the biggest retail-sector gainer after an unexpectedly strong governemtn report on November sales.

NASDAQ

SIGA Technologies Inc., down $2.08 to $5.24

The biotechnology company's dilutive $20 million common stock offering meant to fund general corporate purposes drove shares lower.