Sensitivity of Class OJ to Prepayments Assumed Price 50.224415% PSA Prepayment Assumption Rates 125% 220% 250% 500% 4.0% 4.0% 4.0% 7.3% Sensitivity of Class PI to Prepayments Assumed Price 20.0%* PSA Prepayment Assumption Rates 125% 220% 250% 488% 500% 20.1% 15.0% 13.4% 0.0%  (0.7)% Sensitivity of Class QI to Prepayments Assumed Price 35.0%* PSA Prepayment Assumption Rates 125% 220% 250% 500% 752% 14.6% 14.6% 14.6% 9.0% 0.0% Sensitivity of Class SA to Prepayments Assumed Price 6.5625%* PSA Prepayment Assumption Rates LIBOR 125% 220% 250% 500% 2.2% .................................... 52.9% 52.9% 52.9% 40.9% 3.2% .................................... 31.5% 31.5% 31.5% 16.2% 5.2% ....................................   (17.2)%   (17.2)%   (17.2)%   (43.6)% 6.2% and above ................ ** ** ** ** Sensitivity of Class SB to Prepayments Assumed Price 7.5625%* PSA Prepayment Assumption Rates LIBOR 125% 220% 250% 500% 2.2% .................................... 57.6% 57.6% 57.6% 50.6% 3.2% .................................... 41.0% 41.0% 41.0% 31.1% 5.2% .................................... 2.9% 2.9% 2.9%   (17.6)% 6.2% and above ................ ** ** ** ** *  The price does not include accrued interest. Accrued interest has been added to the price in calculating the yields set forth in the table. **  Indicates that investors will suffer a loss of virtually all of their investment. S-31