| UPGRADES & DOWNGRADES HISTORY |
| Date | Research Firm | Action | From | To | | 12-May-09 | Roth Capital | Upgrade | Hold | Buy | | 20-Nov-08 | Roth Capital | Downgrade | Buy | Hold | | 10-Jul-08 | Northland Securities | Downgrade | Outperform | Market Perform | | 12-Sep-07 | Northland Securities | Upgrade | Market Perform | Outperform | | 27-Jul-07 | McAdams,Wright,Ragen | Upgrade | Hold | Buy | | 19-Jul-07 | Matrix Research | Downgrade | Hold | Strong Sell | | 18-May-07 | Cathay Financial | Initiated | | Outperform | | 10-Nov-06 | McAdams,Wright,Ragen | Initiated | | Buy | | 31-May-06 | Canaccord Adams | Initiated | | Buy | | 24-Aug-05 | McAdams,Wright,Ragen | Downgrade | Buy | Hold |
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| Current Month | Last Month | Two Months Ago | Three Months Ago | | Strong Buy | 2 | 2 | 2 | 2 | | Buy | 2 | 2 | 2 | 2 | | Hold | 0 | 0 | 0 | 0 | | Underperform | 0 | 0 | 0 | 0 | | Sell | 0 | 0 | 0 | 0 |
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