| Upgrades & Downgrades History |
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| Date | Research Firm | Action | From | To |
|---|
| Sep 17, 2012 | Stifel Nicolaus | Downgrade | Buy | Hold | | Sep 5, 2012 | Needham | Downgrade | Buy | Hold | | Feb 27, 2012 | Dougherty & Company | Initiated | | Buy | | Sep 6, 2011 | Auriga | Initiated | | Hold | | Jun 28, 2011 | The Benchmark Company | Initiated | | Hold | | Apr 24, 2011 | Northland Securities | Initiated | | Outperform | | Apr 18, 2011 | Stifel Nicolaus | Initiated | | Buy | | May 13, 2010 | Merriman | Initiated | | Buy |
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| Current Month | Last Month | Two Months Ago | Three Months Ago |
|---|
| Strong Buy | 0 | 0 | 0 | 0 |
|---|
| Buy | 0 | 0 | 0 | 0 |
|---|
| Hold | 0 | 0 | 0 | 0 |
|---|
| Underperform | 0 | 0 | 0 | 0 |
|---|
| Sell | 0 | 0 | 0 | 0 |
|---|
|
Data provided by Thomson/First Call
Currency in USD. |