Earnings report

— Companies reporting quarterly earnings Tuesday included:

Amazon.com Inc., a profi t of $97 million, or 21 cents a share, down from $177 million, or 38 cents a share, a year ago. Revenue grew 22 percent to $21.27 billion. Shares fell $15.69 to close at $260.35.

D.R. Horton Inc., the homebuilder, a profit of $66.3 million, or 20 cents a share, up from $27.7 million, or 9 cents a share, a year ago. Revenue rose to $1.23 billion. Shares rose $2.51 to close at $23.82.

Pfi zer Inc., the drugmaker, a profit of $6.32 billion, or 85 cents a share, up from $1.44 billion, or 19 cents a share, a year ago. Revenue fell 7 percent to $15.1 billion. Shares rose 86 cents to close at $27.70.

Valero Energy Corp., the world’s largest independent refiner by processing capacity, a profit of $1.01 billion, or $1.82 a share, up from $45 million, or 8 cents a share, a year ago. Revenue rose less than 1 percent to $34.7 billion.

Business, Pages 26 on 01/30/2013

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