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L.4 · INTERMEDIATE · 3 MIN

Reading a Track Record Without Being Fooled

Every performance number you are shown is a constructed figure, not a fact of nature -- and the ways an honest-looking number is built to flatter are well known. Three matter most. A firm can show one account that did well instead of the composite -- the aggregate of every portfolio it runs in that strategy, including the bad and the closed ones -- so a single survivor masquerades as the typical result (survivorship bias). It can show a return shaped by when clients happened to add or withdraw money rather than the time-weighted return that strips that out and isolates the manager's own decisions. And it can quietly drop funds that were shut down so only winners remain in the average. The GIPS standards -- the Global Investment Performance Standards published by the CFA Institute -- are a voluntary rulebook that exists precisely to close these gaps so one firm's record can be fairly compared to another's. You are not studying this to present performance; you are studying it so a glossy track record cannot fool you.

Quiz · 5 questions ↓

Three ways a track record misleads

What you are shownHow it can be built to flatterThe question that protects you
One impressive long-run returnIt is a single surviving account, not the composite of every account in the strategyIs this the GIPS composite of all accounts, or one survivor chosen after the fact?
A headline annualized percentageIt reflects client cash-flow timing (money-weighted), not the manager's decisionsIs this time-weighted, so deposits and withdrawals did not flatter it?
A clean multi-year averageClosed or failed funds were dropped, leaving only winners (survivorship bias)Does the record include the funds that were shut down?
'Audited' next to the numberThe audit checks the arithmetic, not how the composite was constructedAudited by whom, and does the audit cover GIPS construction or just the math?

An audit checks math, not construction

An audit verifies the arithmetic; it does not verify the construction. A return can be audited, true to the penny, and still misleading because of what was left out -- the closed funds, the other accounts, the client cash flows. GIPS compliance is the signal that the construction itself, not just the math, followed rules designed to prevent flattering.

Time-weighted versus money-weighted returns

Time-weighted versus money-weighted is the difference most likely to deceive you, so make it concrete. Suppose a fund returns +100% in year one, then -50% in year two. The time-weighted return links the periods: 2.0 multiplied by 0.5 equals 1.0 -- exactly flat, a 0% two-year result. That is the manager's actual record. Now an investor: they put in 100,000 dollars, watch it double to 200,000, are impressed, and add another 200,000 -- so 400,000 is invested going into year two. The -50% year cuts that to 200,000. They contributed 300,000 in total and have 200,000: a real loss. Their money-weighted return -- the internal rate of return on their actual cash flows, meaning the single rate that makes the money they put in and the money they pulled out balance: their personal, dollar-weighted experience -- is roughly -27% per year, because that figure leans on the stretch when the most money was actually invested, and the most money was invested right before the bad year. Same fund, two correct numbers: 0% measures the manager, about -27% measures the investor's timing. GIPS requires the time-weighted figure for a manager's track record precisely so a manager is judged on the portfolio, not on when clients chose to deposit cash -- and so you know which question a given number is answering.

Spotting a cherry-picked return

A newsletter touts a strategy: '+40% last year.' You learn the manager ran nine separate accounts in that strategy; one returned +40%, the median returned +6%, and two were closed mid-year after large losses and are not mentioned. Which description is accurate?

Why the composite is the honest figure

Quoting the single best account while burying the closed losers is the textbook survivorship-biased cherry-pick. Each individual number can be perfectly true and the presentation still deeply misleading -- which is the whole point of a composite. The honest figure is the aggregate of all nine accounts, the two closed ones included; their absence is exactly the distortion GIPS composites exist to prevent. And an audit would not rescue this: it would confirm the +40% account's arithmetic while saying nothing about the eight you were not shown.

Ask how a number was built

So far

A track record is assembled, and the assembly is where the deception lives: one survivor shown for the composite, a money-weighted figure passed off for the manager's time-weighted record, closed funds quietly dropped, an audit cited as if it blessed the construction. Carry one habit into every performance claim: ask how the number was built before you react to how big it is -- is it the GIPS composite, time-weighted, with nothing dropped? The next module takes the whole ethics path -- fiduciary duty, conflicts, the insider line -- and drills it on the hard, ambiguous cases where the right call is not obvious.

Check your understanding

Sit with the ideas.

A fund's website shows '+15% annualized, 12 years, audited.' Which single question best protects you before you trust that number?

Why:
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Other lessons in this course.

  1. 01Fiduciary Duty: The Client Comes First
  2. 02Conflicts of Interest and Fair Dealing
  3. 03Material Nonpublic Information and the Insider-Trading Line
  4. 04Reading a Track Record Without Being Fooled— reading now
  5. 05Ethics in Practice: Calling the Hard Cases
  6. 06Independence and Objectivity: Reading Research from a Conflicted Source
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