| 日期 | 代碼 | 券商 | 原評等→升級後評等 | 新目標價 |
| 2011/1/28 | NOK | Morgan Keegan | Underperform >> Mkt Perform | $9.35 >> $11.50 |
| 2010/9/13 | NOK | Barclays Capital | Equal Weight >> Overweight | $10 >> $13 |
| 2010/9/10 | NOK | RBC Capital Mkts | Sector Perform >> Outperform | $12 >> $14 |
| 2010/7/23 | NOK | Wunderlich | Hold >> Buy | |
| 2010/5/28 | NOK | MKM Partners | Sell >> Neutral | |