Waterfall Forensics.

Prime fixed-rate RMBS

Wells Fargo Mortgage Backed Securities 2006-3 Trust

424B5 filed 2006-02-27, acc 0001193125-06-040146

machine-encoded from the prospectus by the extraction pipeline and tied out over 10 periods (2006-03-27 to 2006-12-26); not yet expert-verified

Backtested periods

10

2006-03-27 to 2006-12-26

Comparison points within $1

98.3%

600 points

Max principal delta

$0.02

interest $15464.16 · balance $0.02

What the encoder found in the filings

  • A-PO: draft face 747,104.00 -> reported 747,104.48 (pinned from the remittance Original Balance)
  • B-6: draft face 1,890,430.00 -> reported 1,890,430.28 (pinned from the remittance Original Balance)
  • group 1 has 14 senior classes (A-1, A-2, A-3, A-4, A-5, A-6, A-7, A-8, A-9, A-10, A-11, A-12, A-PO, A-R); assumed pro rata, but the contract may pay them as components — check the tie-out
  • window starts at deal month 1 (2006-03-27); earlier reports are not in the machine-readable run

Capital structure · original faces

A-1
$216,106,000.00
A-2
$11,716,000.00
A-3
$74,228,000.00
A-4
$3,374,000.00
A-5
$48,361,000.00
A-6
$7,895,000.00
A-7
$119,634,000.00
A-8
$31,262,000.00
A-9
$195,548,000.00
A-10
$23,197,000.00
A-11
$170,398,000.00
A-12
$12,432,000.00
A-PO
$747,104.48
A-R
$100.00
B-1
$16,540,000.00
B-2
$5,199,000.00
B-3
$3,308,000.00
B-4
$1,890,000.00
B-5
$1,418,000.00
B-6
$1,890,430.28

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

Worst remaining deltas · computed vs reported

interest

2006-03-27A-3-15464.16
2006-04-25A-3-15438.77
2006-05-25A-3-15401.68
2006-06-26A-3-15352.91
2006-07-25A-3-15292.49

principal

2006-12-26A-3-0.02
2006-12-26A-5+0.02
2006-03-27B-6+0.02
2006-10-25A-6-0.02
2006-10-25A-8-0.02

ending balance

2006-11-27A-3-0.02
2006-08-25A-5+0.02
2006-09-25A-5+0.02
2006-10-25A-5+0.02
2006-11-27A-5+0.02