Bull Market Mistakes That Give Back All the Gains

By Jake Morrow · Published 2026-08-02

The short answer

The bull market mistakes that give back all the gains are oversized positions, no profit-taking plan, mistaking a rising market for skill, ignoring stop-losses, and leverage creep. Fix them by scaling out on a schedule, sizing for the reversal not the rally, and treating every trade like the market can turn tomorrow.

Every bull market produces the same story: a trader turns a few thousand dollars into a life-changing number on paper, gets greedy or careless or both, and gives most of it back before they ever cash out. It happened to plenty of people in 2021, and it’ll happen to plenty more in this cycle. The mistakes aren’t exotic — they’re the same five or six errors repeating with new tickers. I’ve made a couple of them myself with a small account, and the fix isn’t complicated. It’s just unglamorous, which is why most people skip it.

Why Bull Markets Are More Dangerous Than They Feel

A rising market hides bad decisions. When almost everything you buy goes up, you stop being able to tell the difference between a good process and dumb luck. That’s the real danger behind bull market overconfidence trading errors — the market itself is training you to take more risk right before risk matters most. Position sizes creep up, stop-losses get treated as optional, and every dip gets bought without much thought because the last five dips got bought too. Then one correction wipes out three months of gains in three days, and the “strategy” that felt bulletproof turns out to have never been tested.

If you haven’t already, it’s worth reading up on trading psychology and tilt before you’re in the middle of a euphoric run, because that’s exactly when self-awareness gets hardest.

Mistake 1: Sizing Positions for the Rally, Not the Reversal

The most common position sizing mistake in a bull market is scaling up bet size because recent trades worked, not because the setup improved. A trader risking 2% per trade in March might be risking 8-10% per trade by June without ever consciously deciding to change their risk tolerance, it just crept up alongside their account balance and confidence.

The fix is mechanical: size every position off a fixed percentage of current capital, recalculated regularly, not off how good the last month felt. If you’re not sure what ratio makes sense for your setups, risk-reward ratio explained is a good place to get that math right before your position sizes get away from you.

Mistake 2: No Profit-Taking Plan

This is the big one. Most retail investors don’t lose money in a bull market because they picked bad assets, they lose it because they never had a plan for converting unrealized gains into realized ones. “I’ll sell when it hits my target” isn’t a plan if the target keeps moving up every time price gets close.

A basic bull market profit-taking strategy looks something like this:

Gain from entryActionWhy
+50%Sell 20-25% of positionBank real money, reduce emotional attachment
+100%Sell another 20-25%, move stop to breakevenNow playing with house money
+200%+Trail a stop on the remainderLet the rest run without full exposure
Trend breaks structureExit remaining positionProtect what’s left, don’t hope

This isn’t the optimal exit for every single trade in hindsight, nothing is. But it removes the moment where you’re staring at a screen trying to decide in real time, which is exactly when overconfidence talks you out of selling.

Mistake 3: Mistaking a Rising Tide for Skill

When most assets in a sector are green, it’s genuinely hard to tell if your picks are good or if the market is just doing the work for you. This matters because the trader who thinks their win rate is skill-driven takes bigger risks going forward, and the trader who knows it was mostly market beta stays disciplined. Keeping a trading journal is the single best way to separate the two, write down your reasoning before the trade, not after, and review it once the position closes.

Mistake 4: Dropping Stop-Losses Because “It Always Bounces”

In a strong bull run, pullbacks get bought fast enough that stop-losses start to feel like they cost you money more often than they save you. So traders quietly stop using them. Then the market has one correction that doesn’t bounce in three days, and the position that was “just a hold” turns into a much bigger loss than any stop-loss would have allowed. If you’ve drifted away from using them, stop-loss strategies is worth a re-read, a trailing stop specifically solves the “but it might go higher” problem, because it moves up with the trade instead of locking you into one static exit.

Mistake 5: Leverage Creep

Holding too long in a bull market is one risk; adding leverage on top of it is another entirely. Leverage doesn’t just amplify gains, it amplifies the exact position-sizing and profit-taking mistakes above. A 3x leveraged position that would’ve been a manageable 15% drawdown unleveraged becomes a liquidation event. If leverage is part of your toolkit, understanding the specific ways it goes wrong matters more in a euphoric market than a calm one, see leverage mistakes beginners make and the fuller leverage trading guide before increasing size just because everything’s been working.

Rules and maximum leverage limits for retail accounts vary by country and by platform, so check your local regulator and your exchange’s terms before scaling this up, availability isn’t the same everywhere.

Signs a Bull Market Is Running Out of Room

No indicator nails the top. But a few things tend to show up late in a cycle, and they’re worth tracking rather than ignoring:

None of these tell you the exact top. What they do is remind you that the exit plan should already be in motion by the time they show up, not something you start thinking about after.

The Bottom Line

Giving back bull market gains isn’t usually one catastrophic decision, it’s five small ones stacked on top of each other: bigger size, no exits, confused skill, dropped stops, added leverage. Fix even two or three of these and most of the damage disappears. If this cycle eventually turns, having a plan already written down (see the bear market playbook) means you’re not improvising with real money on the line. The goal was never to catch the exact top, it’s to still have most of your gains when everyone else is asking what happened.

Frequently asked questions

What are the biggest mistakes traders make during a bull market in 2026?

The top ones are oversizing positions after a few wins, refusing to take any profit because 'it'll go higher,' dropping stop-losses because pullbacks keep getting bought, and adding leverage as confidence (not conviction) grows. Any one of these can erase months of gains in a single sharp correction.

How do I protect my trading gains without selling too early?

Scale out in pieces instead of picking one exit point. A common approach is taking 20-25% off at each major target while letting a trimmed position ride, which locks in real money without fully exiting a trend that's still working. Trailing stops on the remaining position do the rest.

Why do most retail investors lose money even in a bull market?

Because paper gains aren't real gains until they're realized, and most retail traders never convert them. They hold everything through the run-up, panic-sell into the first sharp drop, and end up with a worse average price than if they'd just held from day one and done nothing.

Should I use stop-losses or take-profit orders to lock in bull market gains?

Use both — they solve different problems. Take-profit orders bank realized gains on the way up; stop-losses (ideally trailing ones) protect what's left if the trend reverses. Relying on only one leaves a gap that overconfidence usually fills at the worst time.

How do I know when a bull market is about to reverse so I can exit in time?

No signal is perfect, but rising funding rates, extreme greed readings, thinning volume on new highs, and euphoric retail chatter (family members asking about crypto) are classic late-cycle tells. Nobody catches the exact top — the goal is having already taken profit before you need to guess.

What's a reasonable profit-taking percentage rule for a bull run?

A simple starting rule: take profit on 20-25% of a position every time it gains 50-100% from your entry, and move your stop-loss up to breakeven after the first trim. It's not optimal for every trade, but it removes the emotional decision in the moment.

Do I need a trading journal to avoid giving back bull market gains?

Yes — most traders who give back big gains can't tell you exactly when their thinking shifted from 'follow the plan' to 'this time is different.' A journal makes that shift visible in your own words before it costs you money again.

Jake Morrow — Writes about compounding, trading and building income streams. Started with a $2k account in 2018 and still checks every number in a spreadsheet before publishing.