Exhibit 99.1

Janus Investment Funds ("JIF")

|                                     |  |        |  |                                        |  | Lipper Rankings Based
on Total Returns as of 12/31/07
|------------------------------------ |  | ------ |  | -------------------------------------- |  | -----------------------------------------------------
|
|
|Growth Funds                         |  |        |  |                                        |  |                                                      
|Janus Twenty Fund(1)                 |  | Aug-97 |  | Large-Cap Growth Funds                 |  | 1                                                    
|Janus Fund                           |  | Oct-07 |  | Large-Cap Growth Funds                 |  | 41                                                   
|Janus Orion Fund                     |  | Jun-00 |  | Multi-Cap Growth Funds                 |  | 3                                                    
|Janus Research Fund                  |  | Jan-06 |  | Large-Cap Growth Funds                 |  | 5                                                    
|Janus Enterprise Fund                |  | Oct-07 |  | Mid-Cap Growth Funds                   |  | 22                                                   
|Janus Venture Fund(1)                |  | Jan-01 |  | Small-Cap Growth Funds                 |  | 18                                                   
|Janus Triton Fund                    |  | Jun-06 |  | Small-Cap Growth Funds                 |  | 9                                                    
|Core Funds                           |  |        |  |                                        |  |                                                      
|Janus Contrarian Fund                |  | Feb-00 |  | Multi-Cap Core Funds                   |  | 3                                                    
|Janus Growth and Income Fund         |  | Nov-07 |  | Large-Cap Core Funds                   |  | 26                                                   
|Janus Balanced Fund                  |  | Apr-05 |  | Mixed-Asset Target Alloc. Mod. Funds   |  | 4                                                    
|Janus Fundamental Equity Fund        |  | Nov-07 |  | Large-Cap Core Funds                   |  | 12                                                   
|INTECH Risk-Managed Stock Fund       |  | Feb-03 |  | Multi-Cap Core Funds                   |  | 49                                                   
|International/Global Funds           |  |        |  |                                        |  |                                                      
|Janus Overseas Fund(1)               |  | Jun-03 |  | International Funds                    |  | 1                                                    
|Janus Worldwide Fund                 |  | Jun-04 |  | Global Funds                           |  | 53                                                   
|Janus Global Technology Fund         |  | Jan-06 |  | Science & Technology Funds             |  | 22                                                   
|Janus Global Life Sciences Fund      |  | Apr-07 |  | Health/Biotechnology Funds             |  | 3                                                    
|Janus Global Research Fund           |  | Feb-05 |  | Global Funds                           |  | 3                                                    
|Janus Global Opportunities Fund      |  | Jun-01 |  | Global Funds                           |  | 41                                                   
|Value Funds                          |  |        |  |                                        |  |                                                      
|Janus Mid Cap Value FundInv(2)      |  | Aug-98 |  | Mid-Cap Value Funds                    |  | 20                                                   
|Janus Small Cap Value FundInv.(1,2) |  | Feb-97 |  | Small-Cap Core Funds                   |  | 26                                                   
|Income Funds                         |  |        |  |                                        |  |                                                      
|Janus Flexible Bond Fund             |  | May-07 |  | Intermediate Inv Grade Debt Funds      |  | 11                                                   
|Janus High-Yield Fund                |  | Dec-03 |  | High Current Yield Funds               |  | 67                                                   
|Janus Short-Term Bond Fund           |  | May-07 |  | Short Investment Grade Debt Funds      |  | 34                                                   
|Janus Federal Tax-Exempt Fund(1)     |  | Feb-05 |  | General Muni Debt Funds                |  | 99                                                   
|Asset Allocation Funds               |  |        |  |                                        |  |                                                      
|Janus Smart Portfolio-Growth         |  | Dec-05 |  | Mixed-Asset Target Alloc. Growth Funds |  | 2                                                    
|Janus Smart Portfolio-Moderate       |  | Dec-05 |  | Mixed-Asset Target Alloc. Mod. Funds   |  | 2                                                    
|Janus Smart Portfolio-Conservative   |  | Dec-05 |  | Mixed-Asset Target Alloc. Cons. Funds  |  | 1                                                    

|
|

|             |  | Percent of JIF Funds per Lipper Quartile based on Total Returns |  
|------------ |  | --------------------------------------------------------------- | -
|
|1st Quartile |  | 66.7                                                            | %
|2nd Quartile |  | 22.2                                                            | %
|3rd Quartile |  | 7.4                                                             | %
|4th Quartile |  | 3.7                                                             | %

Please consider the charges, risks, expenses and investment objectives carefully before investing. For a prospectus containing this and
other information, please call Janus at 1-800-525-1068 or download the file from janus.com. Read it carefully before you invest or send
money.

An investment in a money market fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to
preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.

Lipper,
a wholly-owned subsidiary of Reuters, provides independent insight on global collective investments including mutual funds, retirement funds, hedge funds, fund fees and expenses to the asset
management and media communities. Lipper ranks the performance of mutual funds within a classification of funds that have similar investment objectives. Rankings are historical with capital gains and
dividends reinvested and do not include the effect of loads. If an expense waiver was in effect, it may have had a material effect on the total return or yield for the period.

Data
presented reflects past performance, which is no guarantee of future results. Rankings referenced exclude money markets.

Notes:



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