Waterfall Forensics.

Prime hybrid ARM RMBS

Wells Fargo Mortgage Backed Securities 2006-AR7

424B5 filed 2006-04-24, acc 0001193125-06-085826

machine-encoded from the prospectus by the extraction pipeline and tied out over 8 periods (2006-05-25 to 2006-12-26); not yet expert-verified

Backtested periods

8

2006-05-25 to 2006-12-26

Comparison points within $1

99.7%

384 points

Max principal delta

$0.44

interest $1.11 · balance $0.45

What the encoder found in the filings

  • B-6: draft face 2,498,480.00 -> reported 2,498,480.27 (pinned from the remittance Original Balance)

Capital structure · original faces

I-A-1
$302,144,000.00
I-A-2
$13,907,000.00
I-A-R
$100.00
II-A-1
$150,000,000.00
II-A-2
$100,000,000.00
II-A-3
$6,200,000.00
II-A-4
$199,518,000.00
II-A-5
$48,315,000.00
II-A-6
$107,155,000.00
II-A-7
$28,131,000.00
B-1
$15,990,000.00
B-2
$10,493,000.00
B-3
$6,496,000.00
B-4
$5,996,000.00
B-5
$2,499,000.00
B-6
$2,498,480.27

viridian = senior (per-pool) · burgundy = cross-collateralized subordinates

Worst remaining deltas · computed vs reported

interest

2006-07-25I-A-1-1.11
2006-09-25I-A-1+0.91
2006-08-25I-A-1+0.86
2006-09-25II-A-4+0.84
2006-11-27I-A-1+0.77

principal

2006-05-25I-A-1+0.44
2006-05-25II-A-4+0.12
2006-05-25II-A-1+0.06
2006-05-25II-A-2+0.06
2006-12-26I-A-1-0.02

ending balance

2006-06-26I-A-1-0.45
2006-07-25I-A-1-0.45
2006-08-25I-A-1-0.45
2006-09-25I-A-1-0.45
2006-10-25I-A-1-0.45