Week of May 13, 2013

Date	Open	High	Low	Close	Volume
May 13, 2013	6.34	6.35	6.34	6.34	1,024,830
May 14, 2013	6.34	6.35	6.33	6.34	3,162,653
May 15, 2013	6.32	6.35	6.32	6.33	1,882,888
May 16, 2013	6.33	6.35	6.33	6.33	1,824,687
May 17, 2013	6.34	6.34	6.32	6.33	996,527

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Year End Stock Prices

The historical stock information provided is for informational purposes only and is not intended for trading purposes. The historical stock information is provided by Mergent, a third party service, and Power-One, Inc. does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.