Market Insider

Midday movers: Barclays, Pfizer, Twitter & More

NYSE EuroNext flag hangs outside the NYSE.
Adam Jeffery | CNBC

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

Barclays - The London-based bank fell after a collapse in its investment banking unit pressured first-quarter profits.

Delta Air Lines - The carrier rose after announcing a $2 billion share buyback and boosting its quarterly dividend 50 percent to 9 cents a share.

Discovery Communications - The media company fell after its first-quarter revenue came in below estimates.

Hillshire Brands - The packaged meat company moved higher after posting better-than-expected third-quarter results.

Martha Steward Living Omnimedia - The media and merchandising company fell as weakness in its publishing and broadcasting segments continued in the first quarter and overall revenue declined.

Nvidia - The graphics processing units manufacturer declined after reporting quarterly results above estimates but failed to provide a forecast for the current quarter.

Office Depot - The retailer rose after posting better-than-expected quarterly earnings and saying it will close at least 400 stores.

Pfizer - The pharmaceutical company declined as AstraZeneca laid out its defense against its rival's $106 billion takeover offer by predicting sales would rise by three quarters over the next decade.

Twitter - The social media company plummeting as its six-month lock-up period that had restricted the sale of 82 percent of its outstanding stock ended.

Wellcare Health Plans - The provider of managed care services gained after its first-quarter profit more than doubled on stronger revenue and increased membership.

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—By CNBC's Rich Fisherman.

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