| DEAL NAME | MSC 2006-HE1 |
| Closing Date | 2/28/2006 |
| |
| Initial Collateral Characteristics | |
| Principal Balance ($) | 1,213,914,513 |
| |
| Sellers | WMC(77.71%),DO(22.29%) |
| Servicers | CH(100.00%) |
| |
| Number of Loans | 6,680 |
| Avg Loan Balance ($) | 181,723 |
| |
| Fixed/Floating | |
| % FRM | 15.61 |
| % ARM | 84.39 |
| |
| %IO | 13.17 |
| Wtd Avg IO Term (months) | 67 |
| |
| Wtd Avg Current Mortgage Rate (%) | 7.421 |
| Non-Zero Wtd Avg Margin (%) | 6.382 |
| Non-Zero Wtd Avg Initial Cap (%) | 3.038 |
| Non-Zero Wtd Avg Periodic Cap (%) | 1.000 |
| |
| Lien Composition | |
| % 1st Lien | 91.58 |
| % 2nd Lien | 8.42 |
| |
| Non-Zero Wtd Avg FICO | 632 |
| % FICO below 600 (inc. N/A) | 24.90 |
| % FICO below 550 (inc. N/A) | 7.67 |
| |
| Wtd Avg Comb Orig LTV | 81.66 |
| % CLTV > 80 | 32.16 |
| % CLTV > 90 | 12.36 |
| % CLTV > 95 | 7.81 |
| |
| % Silent Seconds | 14.88 |
| CLTV incl. all simul. liens (%) | 90.06 |
| |
| Documentation Level | |
| % Full Documentation | 48.25 |
| % Stated Documentation | 48.03 |
| % Limited Documentation | 3.73 |
| |
| % Owner Occupied | 96.72 |
| |
| Loan Purpose | |
| % Cashout Refinance | 46.37 |
| % Purchase | 48.43 |
| % Rate Term Refinance | 5.21 |
| |
| State Concentration (Over 5%) | CA(36.25%),MD(6.22%),NY(5.66%) |
| |
| % Prepay Penalty | 67.08 |
| |
| Wtd Avg Std Orig Term (months) | 343 |
| Wtd Avg Std Rem Term (months) | 340 |
| Wtd Average Loan Age (months) | 3 |
