Take a look at some of Tuesday's midday movers:
Homebuilders, including Toll Brothers, Lennar, DR Horton, Pulte and Hovnanian, rose as October housing starts rose to their highest rate in four years.
Mosaic gained ground on a rumor that it has hired JP Morgan to explore strategic alternatives due to foreign interest in the company.
Cooper Tire & Rubber fell on reports Apollo Tyres has "put on hold" its plans to acquire the company.
Schiff Nutrition fell after Bayer decided not to top Reckitt Benckiser's $1.4 billion, $42 a share bid for the vitamin maker.
Medtronic rose on signs its key heart and spine markets were improving. Its second-quarter earnings matched analysts expectations.
Shoe Carnival slumped after the footwear retailer predicted current quarter earnings below Street forecasts.
Sturm Ruger moved higher after the firearm's maker unveiled a special dividend of $4.50 a share.
Patterson Companies moved lower after the medical supply company's second-quarter earnings fell 7 percent on slowing sales growth. It also lowered its full-year earnings estimate.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
Questions? Comments? Email us at firstname.lastname@example.org
These tech names could be set to break out, and many of them are still below their 15-year-old, all-time highs.
Names on the move ahead of the open.
Stocks could stay on cruise control, with auto sales as a potential catalyst, as traders watch for another new high in the Nasdaq.
Check out which companies are making headlines after the bell Monday: Caesars, Palo Alto, Mylan & more.
Patti Domm is CNBC Executive Editor, News, responsible for news coverage of the markets and economy.
A CNBC reporter since 1990, Bob Pisani covers Wall Street from the floor of the New York Stock Exchange.
CNBC's Senior Personal Finance Correspondent
JeeYeon Park is a writer for CNBC.com. Follow her on Twitter: @JeeYeonParkCNBC
Rick Santelli joined CNBC Business News as an on-air editor in 1999, reporting live from the floor of the Chicago Board of Trade.
Senior Producer at CNBC's Breaking News Desk.