Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and Nasdaq Stock Market:
Western Digital Corp., up $4.67 at $34.68
The world's largest maker of hard drives is buying Hitachi Global Storage Technologies, the third largest, for $4.3 billion in cash and stock.
Brinker International Inc., up $1.03 at $24.85
UBS upgraded the owner of Chili's, saying sales have stabilized and the company may be able to achieve its longterm profit goals.
St. Joe Co., down $1.18 at $26.24
The real estate developer elected its largest shareholder as the new chairman and a former chairman as temporary CEO amid company turmoil.
Ciena Corp., down $2.83 at $25.98
Acquisition costs deepened the networking equipment maker's loss in its most recent quarter, and weighed on its outlook for the current period.
FirstMerit Corp., up 13 cents at $16.80
A Stifel Nicolaus analyst raised the community bank's stock rating because of a recent sell-off in the shares.
Accuray Inc., down $1.01 at $9
The maker of the CyberKnife robotic system for treating tumors is buying radiation therapy company TomoTherapy Inc. for about $227 million in cash and stock.
Starbucks Corp., up 48 cents at $33.60
The Wall Street Journal quoted CEO Howard Schultz as saying the coffee company was looking for acquisitions to expand its consumer-products business.
James River Coal Co., up $2.96 at $23.21
A Brean Murray Carret analyst said a $475 million acquisition will double the coal miner's size for a reasonable price.