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FOMO, Crypto, and Chasing Returns

Educational onlymedium review priority
Published 2026-07-09Updated 2026-07-11
What these dates mean

Published is the original release. Updated records a material content change. Reviewed records the latest documented factual or editorial review; it does not mean personalized professional advice.

'Everyone's getting rich' is a feeling, not a strategy. What the evidence on return-chasing actually shows — including where it disagrees.

Plain answer: FOMO is loudest after an asset has already risen, which is when risk is highest, not lowest. Chasing costs something — how much is genuinely disputed, with credible estimates ranging from about 0.1 to 1.2 percentage points a year. The plain rule survives either number: cap speculation at money whose loss would not change your plan.

Every few years an asset goes vertical, and the same feeling returns: everyone seems to be getting rich except you. That feeling — FOMO, the fear of missing out — is one of the most reliable ways to lose money. This spoke sits under the Money psychology hub.

FOMO is a feeling, not a strategy

FOMO borrows the same wiring as loss aversion: watching others gain registers like a loss you are suffering, so you act to make the feeling stop — usually by buying something after it has already run up.

Notice the tell. FOMO is loudest after a big rise, which is exactly when the enthusiasm is already in the price. The feeling and the risk peak together, and the feeling insists on the opposite.

What chasing actually costs — and why the number is disputed

Here is a place where we could give you one confident figure, and most sites do. We are not going to, because the two most credible estimates differ by more than tenfold.

Comparison table in this article
SourceWhat it measuresEstimated cost
Morningstar, Mind the Gap 2025Gap between fund total returns and the return the average invested dollar earned, 10 years to 31 Dec 2024~1.2 percentage points a year
Fulkerson, Jordan, Riley & Yan, Financial Analysts Journal (2026)Re-examines that methodology and argues it overstates the shortfall~0.10 percentage points a year
Barber & Odean (2000), 66,465 householdsNet returns of individual investors vs the market, 1991–1996The average household lagged modestly; the most active traders lagged badly

The disagreement is about method — whether a dollar-weighted return gap really captures "bad timing", or partly captures the fact that money flows into funds as they grow. It matters, and it is unresolved.

What all three agree on: the cost is not negative. Nobody has ever found that trading more, chasing harder, or piling in after a run makes the average investor money. The honest range is "somewhere between a small drag and a serious one" — and the advice is identical at either end.

Herding and bubbles, minus the folklore

Markets are crowds as well as numbers, and prices really can detach from any defensible value. The dot-com collapse is the well-documented modern case: real companies, real capital, valuations that could not be justified by any plausible cash flow, and a drawdown that took the Nasdaq roughly fifteen years to recover in nominal terms.

But we have quietly retired one example this page used to lean on. Tulipmania is mostly a myth. The historian Anne Goldgar spent years in the Dutch archives and found the tulip trade of the 1630s involved a fairly small circle of merchants and craftsmen, produced no broad economic collapse, and left almost no bankruptcies — she could not find a single person ruined by it. The famous images of servants mortgaging their futures and chimney-sweeps trading bulbs come from 17th-century moralising pamphlets, laundered into "history" by Charles Mackay's Extraordinary Popular Delusions in 1841.

That correction matters more than it looks. If your case against speculating rests on a story that turns out to be propaganda, the case is weaker than you thought — and the reader who finds that out stops trusting the rest. The argument against buying after a run does not need tulips. It needs only this: the price already contains the excitement, and you are late.

The other honest caveat: noticing a bubble and timing one are different skills, and almost nobody has the second. "This looks overpriced" has been correct and unprofitable for years at a stretch. Which is precisely why the answer is a rule about position size, not a call on the top.

The plain rule: cap the fun money

You do not have to swear off speculation. You have to contain it.

  • Decide the cap in advance, while nothing is going up. An amount you could lose entirely without changing your retirement date, your contributions, or your sleep.
  • Never top it up because it went up. That is FOMO wearing a spreadsheet.
  • Keep it structurally separate from the retirement accounts and the automated plan. Different account, different mental bucket.
  • Write the thesis down before you buy, including what would prove you wrong. FOMO cannot pass this test, because its only argument is the recent price.

That single rule turns FOMO from a threat to your retirement into a hobby with a budget. Meanwhile the boring part keeps running: automate the core, escalate with raises, and let present bias work for you instead of against you.

Key takeaways

  • FOMO peaks after big rises — when risk is highest, not lowest.
  • The cost of chasing is real but genuinely disputed: roughly 0.1 to 1.2 percentage points a year depending on how you measure. No credible estimate says chasing pays.
  • Tulipmania is largely a myth. Bubbles are real; the folklore around them is not, and neither is anyone's ability to time them.
  • Cap speculation at money whose loss would not change your plan, decide the cap before the rally, and never top it up.

Educational only — not financial advice.

FAQ

Why does FOMO hit hardest after something has already gone up?

Because watching other people gain registers like a loss you are personally suffering, and the urge to stop that feeling peaks after a big run. That is precisely when the price already reflects the enthusiasm — so the moment the feeling is strongest is the moment the risk is highest.

How much does chasing returns actually cost?

Credible sources disagree, and that is the honest answer. Morningstar's 2025 study puts the gap between fund returns and investor returns at about 1.2 percentage points a year. A 2026 Financial Analysts Journal paper argues the method overstates it and puts the real cost near 0.10 points. Somewhere in that range, and non-zero.

Wasn't tulipmania proof that crowds go insane?

Not really. The historian Anne Goldgar went through the Dutch archives and found the trade involved a fairly small circle of merchants and craftsmen, produced no broad economic collapse, and left almost no bankruptcies. The lurid stories come from 17th-century moralising pamphlets, recycled by Charles Mackay in 1841.

Are bubbles real, then?

Prices detaching from any defensible value is real — the dot-com collapse is the well-documented modern case. What is not reliable is the folklore around it, or anyone's ability to call the top in advance. 'This is a bubble' and 'I know when it ends' are two very different claims, and only the first is ever cheap.

Is it ever fine to buy a speculative asset?

Only with money whose loss would not change your plan. Cap it, label it, keep it entirely separate from the retirement accounts, and never top it up because it went up. The danger is not the bet; it is the bet that starts moving your plan.

What size should a 'fun money' cap be?

Small enough that you could lose all of it and change nothing about your retirement date, your contributions, or your sleep. There is no research-backed percentage here and we will not invent one. The test is behavioural, not numerical: if losing it would make you act, it is too big.

How do I tell an investment thesis from FOMO?

Write the thesis down before you buy, including what would make you wrong. FOMO cannot survive that exercise, because its only argument is that the price went up and other people are happy. If the reason for buying is the recent return, that is the feeling talking.

Sources and notes

  1. Prospect Theory: An Analysis of Decision under RiskKahneman & Tversky, Econometrica 47(2), 1979 · Accessed 2026-07-11The original evidence that losses loom larger than equivalent gains — the wiring FOMO borrows when someone else's gain registers as your loss.
  2. Trading Is Hazardous to Your Wealth: The Common Stock Investment Performance of Individual InvestorsBarber & Odean, The Journal of Finance 55(2), 2000 · Accessed 2026-07-1166,465 households, 1991–1996. The average household's net return lagged the market modestly; the most active traders lagged it badly. Used for the claim that activity, not stock selection, is what costs money.
  3. Mind the Gap 2025: The More Investors Traded, the Less They MadeMorningstar · Accessed 2026-07-11Estimates a 1.2 percentage-point annual gap between fund returns and the return the average dollar earned, over the 10 years to 31 December 2024.
  4. Bad Timing Does Not Cost Investors 15% of Their Funds' Returns: An Examination of Morningstar's 'Mind the Gap' StudyFulkerson, Jordan, Riley & Yan, Financial Analysts Journal, 2026 · Accessed 2026-07-11Challenges the Morningstar methodology and puts the true cost of poor timing near 0.10 percentage points a year. Used to present the disagreement rather than pick a side.
  5. Tulipmania: Money, Honor, and Knowledge in the Dutch Golden AgeAnne Goldgar, University of Chicago Press, 2007 · Accessed 2026-07-11Archival history finding that the tulip 'mania' involved a small circle of merchants, caused no broad economic collapse, and that the ruined-servants stories trace to moralising pamphlets. Used to retire tulipmania as a bubble example.