| DEAL NAME | MSM 2007-1XS |
| Closing Date | 1/31/2007 |
| |
| Initial Collateral Characteristics | |
| Principal Balance ($) | 506,806,191 |
| |
| Sellers (Over 10%) | Morgan Stanley Mortgage Capital Inc.(49.44%),First National Bank of Nevada(17.85%) |
| |
| Servicers (Over 10%) | GMAC Mortgage Corporation(83.07%) |
| |
| Number of Loans | 1,919 |
| Avg Loan Balance ($) | 264,099 |
| |
| 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 | 44.04 |
| Wtd Avg IO Term (months) | 114 |
| |
| Wtd Avg Current Mortgage Rate (%) | 7.329 |
| < 4.00% | 0 |
| 4.0000% - 4.9999% | 0.04 |
| 5.0000% - 5.9999% | 0.8 |
| 6.0000% - 6.9999% | 31.68 |
| 7.0000% - 7.9999% | 54.45 |
| 8.0000% - 8.9999% | 10.7 |
| 9.0000% - 9.9999% | 2.25 |
| 10.0000% - 10.9999% | 0.09 |
| 11.000% + | 0 |
| |
| 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) | 17.64 |
| % FICO below 620 (inc. N/A) | 3.27 |
| |
| Wtd Avg Orig LTV | 74.38 |
| % LTV > 80 | 4.25 |
| % LTV > 90 | 1.59 |
| % LTV > 95 | 0.08 |
| |
| Documentation Level | |
| % Full/Alt Documentation | 14.66 |
| % Stated Documentation | 6.57 |
| % Limited Documentation | 52.68 |
| % No Documentation | 10.93 |
| % No Ratio Documentation | 15.16 |
| |
| % Owner Occupied | 79.99 |
| % Investor | 16.93 |
| % Second Home | 3.08 |
| |
| Loan Purpose | |
| % Cashout Refinance | 39.03 |
| % Purchase | 46.32 |
| % Rate Term Refinance | 14.66 |
| |
| State Concentration (Over 5%) | CA(35.03%),FL(10.65%),NY(9.05%),NJ(5.65%) |
| |
| % Prepay Penalty | 40.3 |
| |
| Wtd Avg Std Orig Term (months) | 346 |
| Wtd Avg Std Rem Term (months) | 342 |
| Wtd Average Loan Age (months) | 4 |
