Check out which companies are making headlines before the bell:
Caterpillar – The heavy equipment maker missed estimates by 20 cents with adjusted quarterly profit of $1.35 per share, although revenue was above analyst projections. The company has also reduced its sales and revenue outlook because of the decline in oil prices.
3M – 3M beat estimates by a penny with quarterly profit of $1.81 per share, thought revenue was very slightly below forecasts.
DuPont – The chemical company matched estimates with earnings of 71 cents per share, but revenue and its full year forecast were shy of consensus. DuPont said its 2015 outlook includes a 60 cent negative impact from currency effects. Separately, DuPont said it would buy back up to $4 billion in stock, using the proceeds from the spinoff of its performance chemicals business.
Procter & Gamble – The company's adjusted quarterly profit of $1.06 per share missed estimates by $1.13, with revenue below estimates as well. The consumer products giant is experiencing "significant" negative currency impact, which will hurt its sales and revenue during 2015.
Pfizer – The drug maker beat estimates by one cent with adjusted quarterly profit of $54 cents per share, with revenue also above estimates. However, it issued lower than expected 2015 guidance because of patent losses and a stronger dollar.
TE Connectivity – CommScope is reportedly near a deal to buy TE's networking equipment business from TE for about $3 billion, according to the Wall Street Journal.
Lexmark – The printer maker posted a mixed quarter, missing estimates by three cents with adjusted profit of $1.11 per share, but with revenues well above estimates. However, current quarter and full year guidance falls short of Street forecasts. Lexmark has been negatively impacted by higher than expected tax rates and currency fluctuations.
American Airlines Group – The airline reported adjusted quarterly profit of $1.52 per share, two cents above estimates, though revenue was slightly short of consensus.
Corning – The company reported adjusted quarterly profit of 45 cents per share, seven cents above estimates, with revenue also beating forecasts. Corning's results have been helped by stronger demand for its LCD glass, among other factors.
Microsoft – Microsoft quarterly profit of 71 cents per share, in line with estimates, with revenue ahead of consensus. Of more concern to investors is a forecast for slower than expected increase in cloud-based revenue, as well as a drop in commercial licensing sales.
United Technologies – United Technologies reported quarterly profit of $1.62 per share, in line with estimates, with revenue very slightly below analyst forecasts. The industrial conglomerate did cut its full year outlook, due to the effects of a stronger dollar.
Dunkin' Brands – Dunkin' cut its 2015 full-year forecast to $1.83 to $1.87 per share from the prior $1.88 to $1.91, below the consensus forecast of $1.91. The restaurant chain also announced a new $700 million share buyback program.
Texas Instruments – Texas instruments earned 69 cents per share for its latest quarter, matching estimates, with revenue also in line. The chip maker's results are being helped by increasing business from automakers.
Google – The company is about to launch its Google Fiber high speed internet service in four more cities, according to The Wall Street Journal. Google will expand the service into Atlanta, Charlotte, Raleigh-Durham, and Nashville, with an announcement expected within days.
Facebook – Facebook suffered a temporary outage early this morning, and said that an internal software error was responsible. It rejected claims from a hacker group which claimed responsibility for the outage.
Informatica – Activist investor Elliott Management has taken an eight percent stake in the software maker, according to an SEC filing, and Reuters reports Elliott may push for a sale of the company.
—By CNBC's Peter Schacknow
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