Midday movers: Aetna, Ocwen Financial, GoPro & more

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Scott Mlyn | CNBC

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

Aetna - The health insurer rose after saying it expects to add more Medicare and public-exchange members in its current quarter than first projected.

Ocwen Financial - The mortgage servicer plummeted after the Los Angeles Times reported California is looking to suspend its license.

GoPro - The maker of wearable cameras dropped after Seeking Alpha reported Apple was granted a patent for a sports camera.

KB Home - The home builder dropped after saying it expects softer demand in the fourth quarter to dent gross margins. Lennar, DR Horton, PulteGroup and Toll Brothers also fell.

Merck & Co. - The pharmaceutical company gained after saying said it expects its experimental hepatitis C treatment to have favorable positions on the preferred drug lists of pharmacy benefit managers.

Pharmacyclics - The drug developer jumped after its initial fourth-quarter sales and 2015 guidance topped expectations.

Tilly's - The specialty retailer gained after raising its fourth-quarter earnings outlook above expectations.

Freeport-McMoRan - The miner slid as copper prices declined to a five-year low.

Goodyear Tire & Rubber - The company fell after lowering its 2014 earnings guidance.

Amazon.com - The online retailer edged higher after signing director Woody Allen to write and direct a television services for its video-streaming service. Citigroup also upgraded the stock to buy from neutral.

ChannelAdvisor - The software-as-a-service provider dropped after reducing its revenue estimate for the fourth quarter.

(See CNBC's Market Insider Blog)

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