Hospira, AGL, Chevron, Epizyme and Yahoo are big market movers

Energy Associated Press

Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market:

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NYSE

Hospira Inc., up 34 cents to $89.85

Pfizer Inc. received regulatory clearance to move forward with its $15.23 billion buyout of the injectable drug device maker.

Chevron Corp., down $3.64 to $72.12

The oil company and its peers saw shares fall as oil prices continue to decline, falling to their lowest point in over five years.

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Bank of America Corp., down 81 cents to $15.29

The bank holding company's stock was caught in the global downdraft triggered by the market a slump in China.

AGL Resources Inc., up $13.55 to $61.41

Southern Co. is buying the gas and electric utility for about $7.93 billion, creating the second-biggest utility in the U.S.

Cobalt International Energy Inc., up 74 cents to $7.98

The independent oil and gas exploration company is selling some oil assets for $1.75 billion.

Nasdaq

Epizyme Inc., up $1.53 to $17.46

The Food and Drug Administration accepted the biotechnology company's plan to begin studies of a potential cancer treatment.

Yahoo Inc., down $1.62 to $31.31

The Internet company's stock was partly undercut by a downturn in China's Alibaba Group, in which Yahoo holds a sizeable stake.

Weibo Corp., down $2.49 to $9.67

The Chinese social media company saw shares decline as the Chinese stock market plunged over fears of an economic slowdown.