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Midday movers: Allergan, McDonald's, Sotheby's & More

Traders work on the floor of the New York Stock Exchange in New York.
Getty Images
Traders work on the floor of the New York Stock Exchange in New York.

Take a look at some of Friday's midday movers:

Allergan - The Botox maker gained after Leering upgraded the stock to outperform from market perform.

Arista Networks - The network-switch maker rose after reporting better-than-expected second-quarter profits.

Hibbett Sports - The operator of sporting-goods stores declined after cutting its full-year earnings guidance.

McDonald's - The fast-food chain slid after reporting global sales dropped more than expected in July.

Medivation - The drug maker gained after hiking its full-year U.S. sales forecast for its prostate cancer drug.

Mercadolibre - The eBay of Latin America moved higher after posting better-than-expected quarterly earnings.

Mylan - The maker of generic drugs fell after RBC Capital downgraded its shares.

Post Holdings - The cereal maker dropped after cutting its earnings outlook for the year.

Salix Pharmaceuticals - The drug company dropped after reporting weaker-than-expected quarterly results.

Sotheby's - The auctioneer declined after tallying weaker-than-expected second-quarter results.

Tekmira Pharmaceuticals - The Canadian biotech firm surged after the Federal Drug Administration cleared its experimental Ebola drug for potential use.

Volcano - The medical-equipment maker fell after Oppenheimer downgraded the stock to market perform from outperform.

(See CNBC's Market Insider Blog)

—By CNBC's Rich Fisherman.

Questions? Comments? Email us at marketinsider@cnbc.com

  • Patti Domm

    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 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.