U.S. stocks traded mixed this morning, with the Dow Jones dropping around 50 points on Tuesday.

Following the market opening Tuesday, the Dow traded down 0.17% to 33,004.98 while the NASDAQ fell 0.18% to 12,513.83. The S&P, however, gained, 0.05% to 4,157.55.

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Leading and Lagging Sectors

Energy shares climbed 1.4% on Tuesday. Meanwhile, top gainers in the sector includedTETRA Technologies, Inc.(NYSE:TTI), up 13% andCVR Energy, Inc.(NYSE:CVI) up 12%.

In trading on Tuesday, consumer discretionary shares fell by 0.4%.

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Pfizer Inc.(NYSE:PFE) posted upbeat results for its first quarter on Tuesday.

Pfizer...