Waterfall Forensics.

Tie-out heatmap

Citigroup Mortgage Loan Trust 2006-AR6

Every comparison the backtest ever made, on one screen: one column per distribution date, one row per class, colored by the worst absolute delta across interest, principal, and ending balance. The near-uniform field is the point. The few cells that broke a dollar are listed below, worst first.

4

periods replayed

82.9%

of 216 points within one dollar

37

points off by more than a dollar

1-A11-A21-R1-B11-B21-B31-B41-B51-B62-A12-A22-A32-A42-M12-M22-M32-M42-CE
2006
exact to the centwithin a pennywithin a dollarover a dollarno comparisonhover any cell for its worst delta

The exception queue

37 of 216 comparisons sit more than a dollar from the trustee's figure. This is the entire list. Of the rest, 157 matched to the exact cent and 4 differed by cents, rounding-sized and never compounding.

DateClassFigureComputedReportedΔ
2006-09-252-CEinterest11,079.471,167,312.531156233.06
2006-12-262-CEinterest7,100.38709,192.38702092.00
2006-10-252-CEinterest6,118.00634,526.67628408.67
2006-11-272-CEinterest3,129.62318,295.78315166.16
2006-09-252-A1interest1,554,190.231,296,401.25257788.98
2006-11-272-A1interest1,457,453.241,603,198.56145745.32
2006-09-252-A3interest624,946.25521,288.25103658.00
2006-09-252-A2interest503,471.46419,962.1383509.33
2006-11-272-A3interest624,424.85686,867.3462442.49
2006-11-272-A2interest503,036.60553,340.2650303.66
2006-09-252-A4interest303,099.92252,825.6350274.29
2006-12-262-A1interest1,408,642.751,361,687.9946954.76
2006-11-272-A4interest291,955.21321,150.7329195.52
2006-12-262-A3interest624,424.85603,610.6920814.16
2006-12-262-A2interest503,036.60486,268.7116767.89
2006-09-252-M1interest75,325.1262,831.1712493.95
2006-12-262-A4interest286,380.94276,834.919546.03
2006-09-252-M2interest52,023.0743,394.158628.92
2006-11-272-M1interest75,263.7282,790.097526.37
2006-11-272-M2interest51,982.8957,181.185198.29
2006-11-272-M3interest22,451.4626,890.394438.93
2006-09-252-M3interest24,460.1320,403.004057.13
2006-11-272-M4interest17,266.9321,000.453733.52
2006-09-252-M4interest19,102.0515,933.653168.40
2006-09-251-A1interest3,580,387.523,583,247.422859.90
2006-12-262-M1interest75,263.7272,754.932508.79
2006-12-262-M2interest51,982.8950,250.131732.76
2006-12-262-M3interest24,445.8223,630.96814.86
2006-12-262-M4interest19,091.3318,454.95636.38
2006-09-251-A2interest199,788.97199,948.55159.58
2006-10-252-M4interest19,016.8419,120.39103.55
2006-09-251-B1interest92,973.0693,047.3374.27
2006-09-251-B2interest29,671.9329,695.6323.70
2006-09-251-B3interest19,781.2919,797.0915.80
2006-09-251-B4interest11,866.7411,876.229.48
2006-09-251-B5interest11,866.7411,876.229.48
2006-09-251-B6interest9,894.439,902.337.90

state rolls forward on computed values only — reported figures are never fed back in, so an engine error would compound rather than hide