Take a look at some of Monday's midday movers:
Bed Bath & Beyond - The home-decor retailer fell after Bank of America/Merrill Lynch downgraded the stock to underperform from neutral.
BlackBerry - The maker of wireless phones rose after receiving three Red Dot Awards for its product design.
Cinemark Holdings - The theater operator slipped after B. Riley downgraded its shares to neutral from buy.
Delta Air Lines - The carrier declined, extending losses that came last week with a disappointing traffic report for June.
Dish Network - The provider of pay-television services fell after Wunderlich Securities reiterated a hold rating on its shares.
GoPro - The maker of first-person-viewpoint cameras rebounded from its first losing session since going public.
GT Advanced Technologies - The solar and LED-equipment company dropped after UBS downgraded its shares to neutral from buy and Canaccord Genuity downgraded its shares to hold from buy.
Peabody Energy - The coal company fell after Deutsche Bank downgraded its shares to hold from buy.
PetSmart - The pet-supply retailer gained after saying in a regulatory filing that it would review changes to its capital structure to return more cash to shareholders.
Tesla Motors - The electric-car maker fell following a weekend incident in which a stolen Model S sedan crashed and caused a battery fire.
Tidewater - The provider of offshore-support services slid after Morgan Stanley downgraded its shares to underweight from overweight.
Williams-Sonoma - The home-products retailer advanced after Bank of America/Merrill Lynch upgraded its stock to buy from neutral.
Yum Brands - The operator of Taco Bell moved lower despite positive comments from RBC Capital.
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—By CNBC's Rich Fisherman.
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