The Mistake That Destroys Returns Most: Performance Chasing

Technology stocks up 40 %. An India ETF that doubled in three years. Crypto back at all-time highs. In every such moment the same question appears in investor groups: When do I get in? And that question itself is the problem.

What performance chasing is and why we do it

Performance chasing — chasing returns — is a simple behavioural mistake: we buy what has recently risen sharply because the brain extrapolates past trends into the future. It is deeply natural. Evolutionary logic says: go where the food was. On the savannah that works. On the stock market it does not.

Daniel Kahneman described the psychological mechanism as System 1 — fast, intuitive thinking that searches for patterns. You see a three-year chart of a technology index up 80 % and your brain says: that's where the money is. But markets do not work like a rear-view mirror.

The result is predictable: you buy late, near the top of the cycle. Then a correction or capital rotation arrives. You wait, hope, and eventually sell at a loss — or join the next chase, this time somewhere else.

How performance rankings mislead

Look at the rankings of the best sector ETFs over the past five years. Technology, then energy, then healthcare, then emerging markets — the order changes every year. There is no reliable pattern telling you who will be next year's winner.

A concrete example: the energy sector ETF XLE had one of its worst results of the decade in 2020. Then came 2021 and 2022 — and it was at the top of the rankings. Those who bought at the bottom got rich. Those who bought after two years of great results paid the price of the rotation.

Emerging markets are similar. After a strong decade from 2000 to 2010 came a lost decade from 2010 to 2020. Those who moved money into EM funds around 2012 based on past results got a decade of frustration.

Sectors are not the exception — they are the rule

Sector and thematic ETFs are especially prone to performance chasing. Why? Because they present themselves as logical investments in the future: artificial intelligence, green energy, robotics, clean water. The theme sounds great. But the timing of the purchase matters more than the theme itself.

When the Ark Innovation ETF (ARKK) returned over 150 % in 2020 it attracted record capital inflows. Then came 2021–2022 with a drop of over 70 %. The average ARKK investor lost more than if they had avoided the fund entirely — because most of the money arrived just before the peak. The fund was earning at one point; the average investor was in the red. That is performance chasing in numbers.

How to defend yourself: a rule, not a feeling

The antidote is not complicated, but it requires a pre-set rule you will stick to even when it hurts.

• Automatic DCA: a regular contribution regardless of what is hot right now. More on the DCA strategy in the article cost averaging.
• Fixed allocation with rebalancing: decide once what you want to hold and restore the ratios once a year. If technology has grown beyond its target share, sell some and top up what has lagged.
• Rankings as a warning signal: if a sector or fund has been at the top of the performance table three years in a row, that is a reason for caution, not a buy signal.
• Investment journal: write down why you are buying. If the reason starts with the words "because it earned... in the last year", stop.

The psychology of chasing also has an institutional cause

Performance chasing is not only done by retail investors. Funds themselves are subject to pressure over quarterly results. A manager who lags the benchmark gets fired. This forces them to buy what is rising — because otherwise they look bad. The result is pro-cyclical behaviour at every level of the market.

For you as a private investor with a 10–30-year horizon this is paradoxically an advantage: you have no boss who will fire you for a bad quarter. That is precisely why you can afford to buy cheap, unpopular, boring things. It is an advantage you give up the moment you spot a ranking and start chasing returns.

One of the most honest things you can do as an investor is admit: I do not know what will grow next year. Neither does anyone else. Active managers with entire teams of analysts cannot reliably predict sector rotations — yet they try, and investors pay for it. This is not investment advice. An index remains the starting point.

What if the returns are genuinely structural?

The natural objection is: what if this time it really is a structural shift — like US technology that has dominated for more than two decades? This question is legitimate and it is important to distinguish it from simple performance chasing.

A structural thesis is recognisable because it exists before the performance, not after it. Someone who in 2012 argued a structural shift toward software and the platform economy and added technology exposure had a thesis. Someone who bought technology in 2021 because it was up 30 % was performance chasing — and then came 2022.

A practical test: if you can describe the thesis for a sector or asset in one sentence without referring to past returns, it is a thesis. If the entire argument rests on a three-year chart, it is chasing.

Another dimension is what you pay. A good business at a bad price is a bad investment. The technology sector can be structurally strong and still too expensive after a decade of outperformance. Valuation matters more than the theme. Buying MSCI World or S&P 500 regularly and with discipline solves this problem for you without needing to pick sectors at all.

How to distinguish healthy reassessment from chasing

Changing strategy or adding an asset is not always performance chasing. Sometimes reassessing a portfolio is legitimate: the investor's situation has changed, the horizon has extended, or genuinely new information about a sector has emerged. The key is to distinguish the motivation.

Healthy reassessment comes from analysing fundamentals — changes in the business, valuation, macro environment. Performance chasing comes from a chart. If you catch yourself browsing rankings and thinking "this is the best this year", close the browser and buy nothing. Discipline is simpler than analysis — but harder to bear. That is precisely why it is so rare and so advantageous for those who can maintain it.

Where returns are created and where they are lost

One of the hardest truths about retail investing is this: the total market return exists, but not every investor captures it. Some investors will inevitably lag — not because the market is manipulated, but because we move money at the wrong time. Every asset selection, every allocation shift based on past performance is a zero-sum game: someone bought too high from someone who sold too cheaply. Statistically, the retail investor is more likely to be on the wrong side of that trade — not because they are foolish, but because their decisions are emotionally timed.

The starting point for anyone who wants to avoid this trap: automation over decision-making. A regular buy order, a fixed allocation and an annual review are enough. Everything else is noise.