Whirlpool –The appliance maker earned $2.62 per share for the second quarter, excluding certain items, falling short of estimates of $2.90. Revenue was also lower than analysts had been forecasting, and the company also cut its full-year forecast, due in part to customer inventory transitions in China.

Delta Air Lines –The airline beat estimates by a penny with quarterly profit of $1.04 per share, with revenue in line with estimates. The bottom line beat came as profit margins expanded by more than four points.

Boeing –The aerospace giant reported quarterly profit of $2.24 per share , excluding certain items, 23 cents above estimates, with revenue essentially in line. Boeing also raised its full-year forecast, as jet orders remained strong.

Check out which companies are making headlines before the bell:

Thermo Fisher Scientific–Thermo Fisher beat estimates by ten cents with quarterly profit of $1.72 per share, excluding certain items, with revenue beating consensus as well. The lab equipment maker benefited from recent acquisitions, and raised its full-year guidance.

Dick's Sporting Goods–The sporting goods retailer laid off more than 400 golf instructors, as its golf-related sales decline.

Dow Chemical–The chemical maker reported quarterly profit of 74 cents per share, beating estimates by two cents, with revenue beating consensus as well. Dow's results were helped by sales gains in all its segments, as well as actions to boost productivity.

PepsiCo–The beverage and snacks giant earned $1.32 per share for the second quarter, excluding certain items, with revenue beating estimates as well. The beat came despite a decline in North American carbonated drink sales.

Tupperware–The household goods maker matched estimates with earnings of $1.47 per share, but revenue was light, as is the company's current quarter and full-year earnings guidance. The company said it faces a number of challenges, including strong comparisons to a year ago and external challenges in the German market.

Biogen Idec–The drug maker earned $3.01 per share for the second quarter, 18 cents above estimates. It also saw revenue come in above analyst forecasts, and raised its full-year forecast on strong sales for its Tecfidera oral multiple sclerosis treatment.

Apple–The tech king reported fiscal third quarter earnings of $1.28 per share, five cents above estimates. However, revenue was shy of expectations, and more notably, sales of Apple's iPad were lower than analysts were forecasting.

Microsoft—The software giant reported quarterly profit of 58 cents per share, excluding certain items, two cents short of estimates, while revenue came beat estimates. Microsoft did see significant one-time costs as it incorporated its purchase of Nokia's handset business.

Electronic Arts—The company surprised Wall Street with a fiscal first quarter profit of 19 cents per share, excluding certain items. Analysts had been predicting a loss of four cents per share, and revenue was well above expectations as well. The video game producer was helped by strong sales of its UFC and Titanfall titles.

–The chipmaker beat estimates by four cents with second quarter profit of 65 cents per share, with revenue in line. The company is also planning to cut 2,500 jobs as it winds down its unit that sells mobile baseband chips.

Juniper Networks–Juniper reported second quarter profit of 40 cents per share, two cents above estimates, beating estimates by two cents. The networking equipment maker saw growth in both products and services.

Safeway–The supermarket operator was subpoenaed by the DEA, which is looking into record keeping related to controlled substances. Safeway said it does not expect to see any material adverse effect on company results.

Xilinx–The chipmaker beat estimates by a penny with first quarter profit of 62 cents per share, but revenue was short of estimates, and the chipmaker gave weak revenue guidance for the current quarter.

PetSmart– The pet supplies retailer hired JPMorgan Chase to advise it on strategic alternatives, according to Reuters. Reports last week had said PetSmart was interviewing several investment banks as it seeks to map out its future.

21st Century Fox–The media giant is not prepared to pay more than $90 to $95 per share in its quest to buy Time Warner, according to the Wall Street Journal. CNBC's David Faber has been reporting that Fox is not prepared to take on a considerable amount of debt to do the deal, and that Time Warner has been trying to make the case that it is worth $100 per share.

—By CNBC's Peter Schacknow

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