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Review

Am I beating the index? How to actually know

Most investors swear they're beating the market and have no honest way to check. Here's how a reconciled book gives you the real verdict, even when it stings.

Strata Team
5 min read
A runner sprinting on a race track
Photo by Brett Wharton on Unsplash

Ask a self-directed investor whether they are beating the index and watch what happens. The shoulders go back. A story arrives about the one stock that tripled. There is a confident “oh, comfortably” and absolutely no number attached to it. Press a little and the truth surfaces: they do not actually know. They have a warm feeling and a highlight reel. What they do not have is a reconciled book and an honest comparison against simply buying the index. So let me say the uncomfortable thing kindly. If you cannot answer “am I beating the index?” with a real figure, the safe assumption is that you are not, and that the market is quietly eating your lunch while you applaud yourself.

Why you don’t actually know

Here is the root of it. Your book is scattered. There is the main brokerage, the old account you keep meaning to consolidate, the pension you barely look at, a bit of crypto on an exchange, some cash doing nothing in particular. Each one shows you its own little number, in its own little corner, and not one of them shows you the whole picture. To know whether you beat the market you need a single total return for everything you own, measured over a real period, lined up against what the index did over that same period. Almost nobody has that lying around. What they have is five tabs and a vibe.

And a vibe is not a verdict. The index does not care how clever your best trade felt. It posts one cold number for the year, and the only fair question is whether your whole pile, winners and losers and dead money included, did better than that number. You cannot eyeball it. You have to add it up.

Memory is a liar that flatters you

Even with the accounts in front of you, your own head is working against you. Memory keeps the winners and quietly bins the rest. You will recall the stock that doubled in vivid detail and develop a convenient fog around the three that bled out, the position you panic-sold at the bottom, and the eighteen months your “high conviction” pick spent going sideways. This is just standard-issue human wiring, and the finance industry’s entire marketing department is built on top of it.

So you end up benchmarking against a flattering memory instead of the index. The memory always wins, because you let it pick which trades to remember. A reconciled book does not let you do that. It keeps every position, including the embarrassing ones, because the embarrassing ones are exactly the ones dragging your real return down to earth. A book that remembers everything is the only cure for a brain that remembers selectively, which is the quiet engine behind the discipline loop.

Picking a benchmark that isn’t rigged

Now, the sport here is choosing a benchmark you can actually beat on paper while losing in real life, and people are weirdly good at it. They compare a portfolio stuffed with cash and bonds against a pure equity index and feel like geniuses. Or they compare an all-tech book against a broad market index in a year tech ran hot, declare victory, and ignore that they took on three times the risk to get there.

A fair benchmark looks like what you are actually doing. If you hold mostly global shares, compare against a broad global equity index. If you deliberately tilt toward smaller companies or value or whatever factor you believe in, the honest question is whether you beat a cheap index that captures that same tilt, not whether you beat the plain vanilla one. This is the same logic as judging factors on their merits rather than on a hunch. Pick the benchmark first, before you know the result. Picking it afterwards, once you can see which one makes you look good, is just decorating.

Measuring honestly, even when it stings

Here is where most people quietly bail, because doing this properly means reconciling. You add up what you own, what you paid, what you sold, the dividends that landed, the fees that left. You get realised P&L from the trades you closed and unrealised P&L from the ones you are still holding, and together they tell you your true total return rather than the flattering slice you remember. The boring part is the whole point. A book you have reconciled against your statements is a book whose verdict you can trust, even when the verdict is “the index won.”

Strata exists to make that the easy path rather than the heroic one. You keep the ledger, it derives the rest, and your real return sits next to a benchmark you chose honestly, so the comparison is a fact instead of a feeling. Sometimes it will tell you that your stock picking has genuinely added something. More often, if you are like most of us, it will gently suggest that a cheap index fund and a long nap would have done at least as well. Both answers are useful. Only one of them is available to a person who has never added the whole thing up.

One honest caveat, because pretending otherwise would make us as bad as the people we mock. Comparing your return to a benchmark fairly is harder than subtracting one number from another, because you did not invest a single lump on day one and leave it. You added money, you took some out, the timing of all that matters. A big contribution right before a good run can make a mediocre investor look brilliant, and a withdrawal at the wrong moment can punish a good one. Sorting that out is the difference between money-weighted and time-weighted return, and it deserves its own post, which is coming. For now, just know that the question has a proper answer and a sloppy one, and that a reconciled book is what gets you to the proper one.

So, are you beating the market?

You should be able to say, in one sentence, with a real figure attached. My portfolio returned this much over this period, the benchmark I chose returned that much, and here is the gap. If you can say that, brilliant, you are already ahead of nearly everyone, whichever way the gap points. If you cannot, that is not a failing, it is just a book that has never been added up. This is the heart of a proper quarterly review: not celebrating the winners, but confronting the whole.

The investors who do this stop wondering and start knowing, and knowing is what lets you change something on purpose instead of by accident. If you would rather have a number you can stand behind than a story you enjoy telling, build your portfolio and find out where you actually stand.

Keep your own ledger

Manual entry only. No brokerage credentials, no fund movement. Type in what you own once, and Strata derives the rest.