Most crypto losses aren’t caused by picking the wrong coin. They’re caused by predictable behaviour — buying after a rise, selling after a fall, holding a position too large to sleep through, and losing access to assets that were never at risk from the market at all.
2026 has been an unusually good year for observing these mistakes. Bitcoin fell roughly 50% from its October 2025 peak; Ethereum fell about 62% from its own. Here are the errors that turn a drawdown into a permanent loss.
1. Buying because the price went up
The single most common mistake, and it feels like research at the time.
Something rises sharply, coverage increases, people you know mention gains, and buying feels obvious. But a price rise is not information about future returns — often the opposite, since you’re paying more for the same asset.
The pattern repeats every cycle. Interest peaks near the top, when the case looks strongest, and disappears near the bottom, when prices are lowest. Anyone who bought Bitcoin near $126,000 in October 2025 was acting on the most enthusiastic coverage available.
The fix: decide your allocation when you’re calm and unexcited, then buy fixed amounts at fixed intervals regardless of price. It removes the decision that people reliably get wrong.
2. Selling because the price went down
The mirror image, and the more expensive of the two.
A position down 50% has lost nothing until you sell. Selling converts a paper loss into a real one and removes you from any recovery. This is the main reason individual investors historically underperform the assets they hold.
It’s rarely a considered decision. It happens when someone needs the money, or when the loss becomes unbearable — both of which are position sizing problems rather than market problems.
3. Holding more than you can sit through
Which leads to the mistake underneath most others.
The workable test: could you watch this position fall 70% without selling, and without it affecting your life? If not, it’s too large — regardless of how convinced you are, and especially if you’re convinced.
For most people that lands between 1% and 5% of investable assets. And it comes after an emergency fund, after high-interest debt is cleared, and after retirement accounts are funded. Our guide to investing in cryptocurrency safely covers that order.
Sizing is the one variable you fully control. Price isn’t.
4. Using leverage
Borrowing to amplify a position in an asset that routinely moves 10% in a day is how people lose everything rather than some of it.
Liquidation doesn’t require you to be wrong about direction. A temporary move against you closes the position, and the subsequent recovery happens without you. Exchanges offering high leverage to retail traders are describing a product where the house structurally wins.
If you wouldn’t borrow to buy shares, don’t borrow to buy crypto — which is considerably more volatile.
5. Believing fabricated hype
Tokens that rise on attention rather than usage follow a recognisable pattern, and the promotion is often demonstrably false.
The VWA token is a useful case study: its 2025 spike was driven substantially by a fabricated Simpsons “prediction” and false suggestions of backing from Ripple and Vanguard Investments — a firm that confirmed it had no affiliation whatsoever. We covered how that played out in detail.
Six questions worth asking about any token before buying: Who is accountable for it? Does the idea need a token at all? Is there a working product or only a roadmap? Where is the trading volume coming from? What does the promotion rely on? Who benefits if you buy?
If the answer to the last one is “people who bought earlier,” you’re the exit liquidity.
6. Confusing volume with adoption
High trading volume looks like validation. Frequently it just means people are trading with each other while nobody uses the thing.
This distinction matters at the market level too. ETF flows now explain a large share of weekly Bitcoin price movement — meaning much of what looks like sentiment is actually mechanical buying and selling by funds. Our piece on how ETF flows move the price explains why.
Real adoption looks like usage metrics, working products and named counterparties. Not volume.
7. Chasing yield
Nothing in crypto generates a guaranteed return. Any product promising fixed daily or weekly yields is either taking risk you can’t see or paying earlier investors with later investors’ money.
Legitimate yield exists — Ethereum staking currently pays roughly 2.8% to 3.5% — and it’s modest for a reason. When you see 20% or 40% advertised, the question isn’t whether it’s too good to be true. It’s where the money comes from, and whether anyone can answer that clearly.
Regulators publish guidance on exactly these patterns. The SEC’s Investor.gov is worth reading once and remembering.
8. Overtrading
Frequent trading looks like engagement and behaves like a fee generator.
Three costs stack up: the spread on each transaction, which beginner apps often hide behind “zero commission”; the tax event created by every disposal; and the record-keeping burden that follows.
Most people who trade actively would have done better holding. That’s uncomfortable but well documented across asset classes.
9. Assuming crypto swaps aren’t taxable
The most expensive administrative mistake, and it surprises people years later.
In the US, UK, Canada and Australia, disposing of crypto is a taxable event. That includes selling for cash, spending it — and swapping one crypto for another, which catches people constantly because no cash is received. Someone who moved between a dozen tokens in a year may owe tax on gains they never cashed out.
The IRS treats crypto as property, with staking rewards taxable as income on receipt. Other markets differ in detail but not in principle.
Record every transaction from the start: date, amount, value in your local currency, fees. Exchanges close and export tools change. Reconstructing years of activity later is miserable and expensive — and losses can only offset gains if you documented them.
10. Leaving everything on an exchange
Convenient, and historically the source of larger losses than price falls.
Crypto held on an exchange is not covered by FDIC insurance in the US, FSCS protection in the UK, or CDIC in Canada. Those schemes cover bank deposits. Private “insurance” advertised by exchanges typically covers institutional custody breaches, not your account being compromised.
Keep small, actively traded amounts on a reputable platform. Move anything you’d hate to lose into self-custody — and then protect the recovery phrase properly, which is covered in our guide to crypto wallets for beginners.
11. Averaging down on a failing project
Buying more of a broad, established asset as it falls is a strategy. Buying more of a specific token as it collapses is often throwing money after a decision you don’t want to admit was wrong.
The distinction: is the price falling because the whole market fell, or because this particular project stopped shipping, lost its team, or was never real? The first is volatility. The second is deterioration, and averaging down accelerates the loss.
12. Thinking you can time it
Published 2026 forecasts from credible analysts have ranged from under $40,000 to above $250,000 for Bitcoin, and roughly $2,000 to $7,500 for Ethereum. When serious institutions differ by a factor of six, nobody knows.
That isn’t a reason to avoid the asset. It’s a reason to use strategies that don’t require prediction: fixed contributions, a position size you can hold, and a horizon long enough that any single year matters less.
Frequently asked questions
What’s the single biggest mistake?
Position sizing. Almost every other error — panic selling, leverage, chasing recovery — becomes far more likely when the position is too large to sit through a bad year.
I bought at the top. What now?
Nothing is required. Decide whether your original reasoning still holds, then check the position is a size you could hold through another 50% fall. If it isn’t, reducing to a sustainable size is a legitimate decision — panic selling at the bottom is not the same as rebalancing deliberately.
Is dollar-cost averaging actually better?
It doesn’t guarantee better returns. It removes the timing decision, which is the thing people get wrong most reliably. That’s the benefit.
Should I sell to crystallise a tax loss?
Losses can offset gains in most jurisdictions, but rules on repurchasing vary — the UK has same-day and 30-day matching rules, for instance. Get advice specific to your country before acting.
The bottom line
Nearly all of these reduce to one thing: holding a position you can’t sit through, then making decisions under pressure.
Size it so a 70% fall wouldn’t change your plans. Buy on a schedule rather than a feeling. Keep long-term holdings off exchanges. Record every transaction from day one. And treat any promise of guaranteed returns as information about the person making it.
None of that predicts price, and that’s the point. It just means your outcome depends on the market rather than on a mistake you could have avoided. For the wider question of whether crypto belongs in your portfolio at all, see our assessment of Bitcoin as a long-term investment.
Sources
- SEC Investor.gov — fraud patterns, guaranteed-return schemes and recovery scams
- IRS — crypto-to-crypto swaps as taxable disposals
- FDIC — crypto is not covered by deposit insurance
- HMRC — UK crypto tax rules including same-day and 30-day matching
Drawdown figures are as of early August 2026. The behavioural patterns described are widely documented across asset classes rather than crypto-specific research.
Last reviewed: 15 August 2026. Prices and tax rules change — we review this article when they do.
Information only, not investment advice. Cryptocurrency is highly volatile and you can lose your entire investment. Tax treatment and consumer protections vary by country and change — consult a qualified professional about your own position.
