| DEAL NAME | MSM 2007-3XS |
| Closing Date | 2/28/2007 |
| |
| Initial Collateral Characteristics | |
| Principal Balance ($) | 531,109,506 |
| |
| Sellers (Over 10%) | Morgan Stanley Mortgage Capital Inc.(57.14%),First National Bank of Nevada(18.78%) |
| |
| Servicers (Over 10%) | GMAC Mortgage Corporation(95.78%) |
| |
| Number of Loans | 1,888 |
| Avg Loan Balance ($) | 281,308 |
| |
| Fixed/Floating | |
| % FRM | 100 |
| % ARM | 0 |
| % Short Arm | 0 |
| % 3/1 or 3/6 | 0 |
| % 5/1 or 5/6 | 0 |
| % 7/1 or 7/6 | 0 |
| % 10/1 or 10/6 | 0 |
| |
| % IO | 42.93 |
| Wtd Avg IO Term (months) | 118 |
| |
| Wtd Avg Current Mortgage Rate (%) | 7.216 |
| < 4.00% | 0 |
| 4.0000% - 4.9999% | 0 |
| 5.0000% - 5.9999% | 1.16 |
| 6.0000% - 6.9999% | 40.95 |
| 7.0000% - 7.9999% | 44.39 |
| 8.0000% - 8.9999% | 11.92 |
| 9.0000% - 9.9999% | 1.46 |
| 10.0000% - 10.9999% | 0.1 |
| 11.000% + | 0.01 |
| |
| Non-Zero Wtd Avg Margin (%) | 0 |
| Non-Zero Wtd Avg Initial Cap (%) | 0 |
| Non-Zero Wtd Avg Periodic Cap (%) | 0 |
| |
| Lien Composition | |
| % 1st Lien | 100 |
| % 2nd Lien | 0 |
| |
| Non-Zero Wtd Avg FICO | 701 |
| % FICO below 660 (inc. N/A) | 26.59 |
| % FICO below 620 (inc. N/A) | 3.17 |
| |
| Wtd Avg Orig LTV | 73.82 |
| % LTV > 80 | 6.46 |
| % LTV > 90 | 3.5 |
| % LTV > 95 | 1.95 |
| |
| Documentation Level | |
| % Full/Alt Documentation | 16.22 |
| % Stated Documentation | 6.58 |
| % Limited Documentation | 53.66 |
| % No Documentation | 12.23 |
| % No Ratio Documentation | 11.31 |
| |
| % Owner Occupied | 81.1 |
| % Investor | 15.45 |
| % Second Home | 3.45 |
| |
| Loan Purpose | |
| % Cashout Refinance | 41.1 |
| % Purchase | 40.54 |
| % Rate Term Refinance | 18.36 |
| |
| State Concentration (Over 5%) | CA(36.00%),NY(11.38%),FL(7.95%) |
| |
| % Prepay Penalty | 46.37 |
| |
| Wtd Avg Std Orig Term (months) | 359 |
| Wtd Avg Std Rem Term (months) | 356 |
| Wtd Average Loan Age (months) | 4 |
