| Upgrades & Downgrades History |
|---|
| Date | Research Firm | Action | From | To |
|---|
| Apr 7, 2013 | Needham | Initiated | | Buy | | Jan 15, 2013 | The Benchmark Company | Initiated | | Buy | | Sep 26, 2012 | Chardan Capital Markets | Initiated | | Buy |
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| No recommendation trend available for PERI |
Currency in USD. |