Companion files

Alternative Investments

A Practitioner’s Guide to Commitments, Cash Flows, and the Return That Reaches the Investor

These are the four Excel workbooks that go with the book. Every figure the book prints is reproduced in them by a live formula rather than a typed constant — move a capital call, change the cash rate, choose a different index, and every dependent number moves. Each one ends with a Checks sheet setting the printed figure beside the computed one: 63 controls in all, every one green. If a control ever reads FAIL, the workbook is wrong, not the book.

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All four workbooks

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Everything described below is inside it, with the read-me.

The four workbooks

Conventions used throughout

Blue texta hardcoded input — you may edit these
Yellow fillan input cell; everything else on the sheet is a formula
Black texta formula — do not overtype these
Checks sheetthe printed figure beside the computed one, with a PASS or a FAIL

Why the checks matter more than the models

A workbook that agrees with a book proves nothing on its own — the author wrote both. What the Checks sheets do is different: they force the model to reproduce a number that was printed before the model existed, from a formula rather than from the number itself.

On this book the discipline caught a timing convention rather than an arithmetic slip, which is the harder kind to find. The fund's internal rate of return depends on when the residual value is struck: at the last reporting date it is 13.2935 per cent, and dated a year later it is 12.9426. Neither is wrong and the difference is not small. The convention is now stated once in the fact pattern, carried in the appendix of the printed book, and reproduced in the workbooks so that a reader can switch it and see the effect.

Where a shortcut and the full computation disagree, both are shown. The apparent advantage is 6.1624 points on the unrounded series and 6.1623 if you subtract the printed returns; the risk reduction is 2.9836 points as claimed and 2.4454 once the valuations are unsmoothed. Neither gap is smoothed away.

Opening the files

The workbooks open in Microsoft Excel, LibreOffice Calc, Google Sheets and Numbers. They use no macros and no add-ins, so nothing needs to be enabled or trusted. If your spreadsheet asks to update links on opening, decline — there are none.

Articles on this book

Also by Julian R. Sterling

The other books with companion files. The full list of titles is on the author page.