| 日期 | 代碼 | 券商 | 原評等→降級後評等 | 新目標價 |
| 2010/10/22 | FFIV | Barclays Capital | Overweight >> Equal Weight | $90 >> $95 |
| 2009/12/11 | FFIV | William Blair | Outperform >> Mkt Perform | |
| 2009/11/20 | FFIV | Auriga U.S.A | Buy >> Hold | 48 |
| 2009/10/16 | FFIV | Oppenheimer | Outperform >> Perform | |
| 2009/5/21 | FFIV | RBC Capital Mkts | Outperform >> Sector Perform | |