Take a look at some of Tuesday's midday movers:
American Airlines Group - The carrier fell after reporting flat year-over-year traffic in August.
Apple - The supplier of consumer technology gained in heavy trading volume ahead of its product releases.
Barnes & Noble - The bookseller posted a narrower-than-expected first-quarter loss.
Chevron -The oil producer fell after Bank of America downgraded the stock to underperform from neutral.
Delphi Automotive - The manufacturer of auto parts advanced after the company said CEO Rodney O'Neal would retire in March and be replaced by CFO Kevin Clark.
Francesca's Holdings - The apparel and accessories company declined after cutting its earnings outlook for the year.
FuelCell Energy - The manufacturer of fuel-cell power plants dropped after reporting a 20 percent decrease in third-quarter sales.
McDonald's - The fast-food chain fell after reporting weaker-than-expected August sales.
Mobileye - The maker of collision-avoidance technology surged after Citigroup raised its price target.
Netflix - The streaming-video service advanced after RBC Capital Markets repeated an outperform rating.
Tenet Healthcare - The provider of healthcare services jumped after Deutsche Bank added the stock to its short-term buy list.
—By CNBC's Rich Fisherman.
Questions? Comments? Email us at email@example.com