| DEAL NAME | MSM 2006-15XS |
| Closing Date | 10/31/2006 |
| |
| Initial Collateral Characteristics | |
| Principal Balance ($) | 678,175,603 |
| |
| Sellers (Over 10%) | Morgan Stanley Mortgage Capital Inc.(45.19%),American Home Mortgage Corp.(23.45%),Greenpoint Mortgage Funding, Inc.(15.71%) |
| |
| Servicers (Over 10%) | GMAC Mortgage Corporation(76.80%),Greenpoint Mortgage Funding, Inc.(15.71%) |
| |
| Number of Loans | 2,653 |
| Avg Loan Balance ($) | 255,626 |
| |
| 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 | 38.37 |
| Wtd Avg IO Term (months) | 120 |
| |
| Wtd Avg Current Mortgage Rate (%) | 7.319 |
| < 4.00% | 0 |
| 4.0000% - 4.9999% | 0.03 |
| 5.0000% - 5.9999% | 1.49 |
| 6.0000% - 6.9999% | 28.58 |
| 7.0000% - 7.9999% | 55.33 |
| 8.0000% - 8.9999% | 13.63 |
| 9.0000% - 9.9999% | 0.94 |
| 10.0000% - 10.9999% | 0 |
| 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 | 703 |
| % FICO below 660 (inc. N/A) | 19.67 |
| % FICO below 620 (inc. N/A) | 2.2 |
| |
| Wtd Avg Orig LTV | 73.71 |
| % LTV > 80 | 2.97 |
| % LTV > 90 | 1.04 |
| % LTV > 95 | 0.44 |
| |
| Documentation Level | |
| % Full/Alt Documentation | 17.46 |
| % Stated Documentation | 9.31 |
| % Limited Documentation | 51.81 |
| % No Documentation | 10.97 |
| % No Ratio Documentation | 10.45 |
| |
| % Owner Occupied | 82.07 |
| % Investor | 14.46 |
| % Second Home | 3.47 |
| |
| Loan Purpose | |
| % Cashout Refinance | 35.76 |
| % Purchase | 50.33 |
| % Rate Term Refinance | 13.91 |
| |
| State Concentration (Over 5%) | CA(21.65%),NY(9.75%),FL(8.57%),NJ(5.79%),TX(5.33%) |
| |
| % Prepay Penalty | 28.19 |
| |
| Wtd Avg Std Orig Term (months) | 357 |
| Wtd Avg Std Rem Term (months) | 354 |
| Wtd Average Loan Age (months) | 3 |
