Modeling Structured Finance Cash Flows with Microsoft Excel

Modeling Structured Finance Cash Flows with Microsoft Excel: A Step-by-Step Guide.Book

By Keith A. Allman

* Publisher: Wiley

* Pages: 224
* Publication Date: 2007-03-09
* ISBN-10: 0470042907
* ISBN-13: 9780470042908
* Binding: Paperback

A practical guide to building fully operational financial cash flow models for structured finance transactions

Structured finance and securitization deals are becoming more commonplace on Wall Street. Up until now, however, market participants have had to create their own models to analyze these deals, and new entrants have had to learn as they go. Modeling Structured Finance Cash Flows with Microsoft Excel provides readers with the information they need to build a cash flow model for structured finance and securitization deals. Financial professional Keith Allman explains individual functions and formulas, while also explaining the theory behind the spreadsheets. Each chapter begins with a discussion of theory, followed by a section called "Model Builder," in which Allman translates the theory into functions and formulas. In addition, the companion CD-ROM features all of the modeling exercises, as well as a final version of the model that is created in the text.

Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Summary: Cool

Rating: 4
This is a good book. It is well-written, gives both the theoretical side and implementation, and gives tips on excel. I am a beginner but it was easy for me to follow. I recommend this book to anyone who wants to learn excel for i-banking or some other finance job.

Summary: Helps Building Cash Flow Model

Rating: 4
Teaches how to build up a cash flow model for big companies such as banks and insurance companies. Not useful for small companies, but even for small companies gives some idea for building a cash flow model.

Summary: Good Intro to Cash Flow Modeling

Rating: 4
Anyone needing to learn how structured finance cash flow models work will benefit from going through this book and building the spreadsheet-based model it describes. It will be faster if you are already good at using Excel for complex modeling or pricing, but there is a fair amount of Excel advice for those who need it. The book models a single pool of mortgages that can be described by weighted average statistics incorporating both prepayment and default scenarios. Great care is taken to make the model flexible in terms of the kinds of mortgages in the pool. On the liability side the model allows for the creation of a single senior class and a sub class with an interest rate swap and a reserve. While very good for learning the cash flow consequences of sequential and pro rata payment waterfalls, this model cannot describe the structures actually issued in the market. The skills learned, however, should allow the reader to build models capable of modeling issued structures.

The writing is clear and the examples are explained well. The flow of cash into and out of the structure is emphasized by clear inputs, cash flow modeling and summary outputs.

Summary: Excellent introduction to MBS modeling

Rating: 5
Keith's book saved me hours of trial-and-error effort with Excel for modeling structured transactions. This book takes a simple, step-by-step approach to help the reader understand the mechanics of building the cash flow model for Mortgage Backed Securities (MBS).

Once you understand the basics of model creation and cash flow, then it is a matter of refining your skills by revere-engineering more MBS transactions out there. You will find all the basic tools to become proficient in that task by following this book.

Summary: Excellent Hands-On Introduction to Structured Finance

Rating: 5
In structured finance, there is a tremendous discrepancy between academic literature and practice. In purporting a generalizable, scientific approach, many textbooks avoid explaining the intracacies of actual structured finance deals. The fundamental issue is that the implicit value of deal transparency required for issuer and investor tends to be overlooked by authors approaching the field from an academic background. Technical pyrotechnics that suit liquid markets fail when fees, interest rates, and other deal specifics are malleable constructs negotiated among a handful of parties. At the same time, basic bond math on an unsegregated pool of loans cannot accurately describe how assets generate cash flows and the risks faced by investors.

MFSC is the *only* book (afaik) that demonstrates how real structured finance pros bridge the void between these 2 common pitfalls made by other structured finance books. For one, the calculations that belie each component of a structured finance deal is integrated into a single model rather than considered separately. Other books may describe how cash flows pay out in a senior-sub structure, but they won't, for example, take the time to step through how funding costs and triggers affect the cash flows. The primary model also gives the user flexibility to stress the model and enables the user to treat the model as a base for all structured finance deals. Through a neatly organized inputs sheet, each component in the primary model described painstakingly anticipates the gamut of variations common to these types of deals.

All this in a book that's easy to follow and a delight to read. Five stars.

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