| UPGRADES & DOWNGRADES HISTORY |
| Date | Research Firm | Action | From | To | | 8-Jan-10 | Roth Capital | Initiated | | Buy | | 17-Nov-09 | Merriman | Initiated | | Buy | | 24-May-07 | Friedman Billings | Initiated | | Outperform | | 15-May-07 | Oppenheimer | Initiated | | Buy | | 8-Mar-07 | Punk, Ziegel & Co | Initiated | | Buy |
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| Current Month | Last Month | Two Months Ago | Three Months Ago | | Strong Buy | 1 | 2 | 2 | 2 | | Buy | 2 | 1 | 1 | 0 | | Hold | 0 | 0 | 0 | 0 | | Underperform | 0 | 0 | 0 | 0 | | Sell | 0 | 0 | 0 | 0 |
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