| DEAL NAME | MSM 2007-7AX |
| Closing Date | 4/30/2007 |
| |
| Initial Collateral Characteristics | |
| Principal Balance ($) | 1,128,563,894 |
| |
| Sellers (Over 10%) | Morgan Stanley Mortgage Capital Inc.(86.63%) |
| |
| Servicers (Over 10%) | GMAC Mortgage Corporation(98.36%) |
| |
| Number of Loans | 3,015 |
| Avg Loan Balance ($) | 374,316 |
| |
| Fixed/Floating | |
| % FRM | 0 |
| % ARM | 100 |
| % Short Arm | 7 |
| % 3/1 or 3/6 | 9.38 |
| % 5/1 or 5/6 | 80.41 |
| % 7/1 or 7/6 | 1.28 |
| % 10/1 or 10/6 | 1.92 |
| |
| % IO | 89.83 |
| Wtd Avg IO Term (months) | 104 |
| |
| Wtd Avg Current Mortgage Rate (%) | 6.913 |
| < 4.00% | 0.11 |
| 4.0000% - 4.9999% | 0.12 |
| 5.0000% - 5.9999% | 6.04 |
| 6.0000% - 6.9999% | 53.08 |
| 7.0000% - 7.9999% | 34.63 |
| 8.0000% - 8.9999% | 5.53 |
| 9.0000% - 9.9999% | 0.47 |
| 10.0000% - 10.9999% | 0.02 |
| 11.000% + | 0 |
| |
| Non-Zero Wtd Avg Margin (%) | 2.759 |
| Non-Zero Wtd Avg Initial Cap (%) | 5.057 |
| Non-Zero Wtd Avg Periodic Cap (%) | 1.806 |
| |
| Lien Composition | |
| % 1st Lien | 100 |
| % 2nd Lien | 0 |
| |
| Non-Zero Wtd Avg FICO | 696 |
| % FICO below 660 (inc. N/A) | 24.36 |
| % FICO below 620 (inc. N/A) | 1.23 |
| |
| Wtd Avg Orig LTV | 77.67 |
| % LTV > 80 | 7.37 |
| % LTV > 90 | 4.57 |
| % LTV > 95 | 3.73 |
| |
| Documentation Level | |
| % Full/Alt Documentation | 11.23 |
| % Stated Documentation | 9.41 |
| % Limited Documentation | 58.24 |
| % No Documentation | 6.69 |
| % No Ratio Documentation | 14.38 |
| % Lite Documentation | 0.05 |
| |
| % Owner Occupied | 85.24 |
| % Investor | 11.05 |
| % Second Home | 3.7 |
| |
| Loan Purpose | |
| % Cashout Refinance | 27.9 |
| % Purchase | 53.98 |
| % Rate Term Refinance | 18.12 |
| |
| State Concentration (Over 5%) | CA(51.87%),FL(5.53%) |
| |
| % Prepay Penalty | 43.18 |
| |
| Wtd Avg Std Orig Term (months) | 360 |
| Wtd Avg Std Rem Term (months) | 357 |
| Wtd Average Loan Age (months) | 3 |
