| DEAL NAME | MSAC 2007-HE1 |
| Closing Date | 1/26/2007 |
| |
| Initial Collateral Characteristics | |
| Principal Balance ($) | 1,303,811,255 |
| |
| Sellers | NC(70.80%),DO(29.20%) |
| Servicers | SX(75.44%),CW(24.56%) |
| |
| Number of Loans | 6,979 |
| Avg Loan Balance ($) | 186,819 |
| |
| Fixed/Floating | |
| % FRM | 18.84 |
| % ARM | 81.16 |
| |
| %IO | 20.37 |
| Wtd Avg IO Term (months) | 60 |
| |
| Wtd Avg Current Mortgage Rate (%) | 8.361 |
| Non-Zero Wtd Avg Margin (%) | 6.462 |
| Non-Zero Wtd Avg Initial Cap (%) | 2.312 |
| Non-Zero Wtd Avg Periodic Cap (%) | 1.337 |
| |
| Lien Composition | |
| % 1st Lien | 95.08 |
| % 2nd Lien | 4.92 |
| |
| Non-Zero Wtd Avg FICO | 623 |
| % FICO below 600 (inc. N/A) | 31.99 |
| % FICO below 550 (inc. N/A) | 9.54 |
| |
| Wtd Avg Comb Orig LTV | 81.95 |
| % CLTV > 80 | 43.17 |
| % CLTV > 90 | 10.33 |
| % CLTV > 95 | 4.99 |
| |
| % Silent Seconds | 21.83 |
| CLTV incl. all simul. liens (%) | 87.62 |
| |
| Documentation Level | |
| % Full Documentation | 61.11 |
| % Stated Documentation | 37.76 |
| % Limited Documentation | 1.13 |
| |
| % Owner Occupied | 92.48 |
| |
| Loan Purpose | |
| % Cashout Refinance | 50.76 |
| % Purchase | 40.39 |
| % Rate Term Refinance | 8.85 |
| |
| State Concentration (Over 5%) | CA(26.40%),FL(8.11%),NJ(6.37%),NY(5.81%),IL(5.46%),MD(5.32%) |
| |
| % Prepay Penalty | 69.10 |
| |
| Wtd Avg Std Orig Term (months) | 359 |
| Wtd Avg Std Rem Term (months) | 355 |
| Wtd Average Loan Age (months) | 4 |
