Crypto Bull Run Mistakes: 12 Errors That Cost Investors the Most
Crypto bull run mistakes that cost investors the most: 12 errors from leverage and FOMO to scams and no exit plan, with practical fixes for 2026–2027.
The crypto bull run mistakes that cost investors the most are rarely about picking the wrong coin: they are about leverage, chasing pumps, having no exit plan, poor security and falling for scams. Past cycles show that many people lose money in rising markets, not just falling ones.
This guide lists 12 of the most expensive errors, why they happen and what to do instead. Whether 2026 and 2027 bring a strong rally or not, avoiding these mistakes matters more than any prediction.
Mistakes With Money and Risk
1. Using leverage
Borrowed positions amplify gains and losses. A 10% dip, common even in strong uptrends, can liquidate a highly leveraged position completely. Our guide to leverage in a bull run explains why liquidations cluster at the worst moments.
Fix: avoid leverage entirely, or keep it very low with a stop-loss and a clear liquidation price.
2. Investing money you cannot afford to lose
Rent money, emergency savings or borrowed funds have no place in a volatile asset.
Fix: build an emergency fund first and set a maximum crypto allocation you could lose without changing your life.
3. Concentrating in one small token
A single small-cap position that grows can become most of your portfolio, then collapse.
Fix: cap speculative positions and rebalance. Read small-cap altcoins in a bull run.
4. Having no exit plan
In 2017 and 2021, many investors watched gains vanish because they never decided when to sell.
Fix: write profit-taking rules before prices rise, such as selling a portion at each doubling or rebalancing quarterly. See how to take profits in a crypto bull run without regret.
Mistakes With Psychology
5. Chasing pumps (FOMO)
Buying a token after it has risen several times over in days often means buying from early holders taking profit.
Fix: buy gradually with dollar-cost averaging and never buy because of urgency. Our guide to FOMO in a bull market has practical techniques.
6. Raising your targets as prices rise
Investors often move their "sell" level higher each time it is reached, until the market turns.
Fix: treat your original plan as binding unless something fundamental changes.
7. Believing "this time is different" without evidence
Every cycle has new narratives. Some prove real; many do not.
Fix: ask what evidence would prove the narrative wrong, and watch for it.
8. Following influencers and price predictions
Many promoters are paid or are selling while you buy. Read crypto price prediction sites to learn how forecasts are produced.
Fix: use primary data such as supply, usage and audits, and verify any token on its coin page.
Mistakes With Security and Scams
9. Falling for bull run scams
Fake airdrops, giveaway videos using famous names, impersonation accounts and presales without products all multiply in rising markets. For a deeper look, see Should You Hold Through a Crypto Bull Run or Trade It?
Fix: never send crypto to "double" it, never connect your wallet to unknown sites and read our guide to bull market scams. Our article Crypto Bull Run 2026 for Beginners expands on this point.
10. Weak account and wallet security
Bigger balances make you a bigger target. SIM swaps, phishing and malicious approvals cost people life-changing sums.
Fix: use app-based or hardware two-factor authentication, a hardware wallet for long-term holdings and regularly revoke unused token approvals.
11. Leaving everything on an exchange
Exchange failures, such as FTX in 2022, have frozen customer funds.
Fix: keep only trading amounts on exchanges and move long-term holdings to a wallet you control. See exchange risk in a bull market.
Mistakes With Admin
12. Ignoring taxes and records
Selling or swapping crypto at a profit can be taxable in many countries. Investors who did not keep records have faced painful bills after a bull run, sometimes after prices had already fallen. Related reading: Crypto Bull Run Red Flags.
Fix: keep records of every trade from day one and set aside part of realized profits for taxes. Rules differ by country, so check official guidance or a professional.
A Quick Self-Check Table
| Question | If the answer is "no" |
|---|---|
| Do I know my maximum crypto allocation? | Set one before your next purchase |
| Have I written profit-taking rules? | Write them today |
| Am I using zero or very low leverage? | Reduce it |
| Is my largest position small enough to lose? | Trim it |
| Is my two-factor authentication app- or hardware-based? | Upgrade it |
| Do I keep records for taxes? | Start now |
Why Smart People Still Make These Mistakes
None of these errors come from a lack of intelligence. Bull markets create conditions that push almost everyone toward them:
- Social proof. When friends, coworkers and online communities all report gains, caution feels like missing out.
- Recency bias. After months of rising prices, it becomes hard to imagine a sharp fall, even though every past cycle had one.
- Paper wealth. Gains that exist only on a screen feel real, so people start spending or borrowing against them.
- Information overload. Constant news and price alerts make it harder to stick to slow, deliberate decisions.
Knowing these pressures in advance makes them easier to resist. Our article on crypto bull run psychology explores them in more depth.
How These Mistakes Play Out in Different Scenarios
- In a strong 2026–2027 rally, the costliest mistakes are leverage, no exit plan and scams.
- In a choppy market, chasing pumps and over-trading do the most damage.
- In a downturn, concentration and money you could not afford to lose hurt most.
A good plan protects you in all three.
Bottom line
The biggest crypto bull run mistakes are behavioral and preventable. Avoid leverage, size positions carefully, set profit-taking rules before prices rise, protect your accounts and stay alert to scams. Use our bull run checklist to prepare, and follow live data on the Bitcoin price page instead of hype.
अक्सर पूछे जाने वाले सवाल
What is the most common mistake in a crypto bull run?
Not having an exit plan is among the most damaging. Many investors in 2017 and 2021 saw large paper gains disappear because they never decided when to take profits. Close behind are using leverage, chasing coins after big jumps and falling for scams that multiply when prices rise.
Why do people lose money even when the market is rising?
Because they buy late, use borrowed money that gets liquidated in a sharp dip, concentrate in small tokens that collapse, or fall for scams. Rising prices also encourage larger bets, so a single reversal can wipe out months of gains. A rising market does not protect against poor risk management.
How can I avoid FOMO in a bull market?
Set rules before prices move: decide your maximum allocation, buy gradually with dollar-cost averaging, and write down what would make you buy or sell. Limit time on social media, where hype is loudest. If you feel urgency to buy immediately, treat that feeling as a signal to slow down.
Is it a mistake to hold everything until the top?
Trying to sell exactly at the top almost never works, because tops are only clear in hindsight. Many investors use partial profit-taking or rebalancing instead, selling portions as prices rise. This avoids the all-or-nothing gamble of guessing the peak.