EXHIBIT 11

                                 CD RADIO INC.
                        (A Development Stage Enterprise)
                       COMPUTATION OF NET LOSS PER SHARE




<TABLE>
<CAPTION>
                                                                                                                                 
                                                                                                                For the period   
                                              Three months ended                 Six months ended                 May 17,1990    
                                           --------------------------       --------------------------        (date of inception)
                                           June 30,          June 30,       June 30,           June 30,            to June 30,
                                             1996              1995           1996               1995                 1996
                                           --------          --------       --------           -------        -------------------
<S>                                        <C>              <C>           <C>                  <C>                 <C>
Net loss                                    ($687,026)       ($516,062)    ($1,203,909)         ($949,098)          ($16,909,174)
                                           ==========       ==========    ============         ==========          =============
Weighted average common              
     shares outstanding                     9,322,471        9,198,960       9,385,781          9,198,960              6,920,384
                                     
                                     
Net common shares issuable upon      
     the exercise of outstanding     
     options issued within one year  
     of initial public offering                     -                 -              -                 -                 388,365
                                           ----------      ------------   ------------         ---------           -------------
                                     
Weighted average common              
     shares outstanding                     9,322,471        9,198,960       9,385,781          9,198,960              7,308,750
                                           ==========       ==========    ============         ==========          =============
                                     
Net loss per common share            
     and common share equivalent               ($0.07)          ($0.06)         ($0.13)            ($0.10)                ($2.44)
                                           ==========       ==========    ============         ==========          =============
</TABLE>