10 Deadly Trading Mistakes! Have You Put Your Account in Danger?
“Unplanned profits always end up turning into bigger losses.” 💥
Have you ever had a winning trade on your account, only to see those profits vanish because of an impulsive decision or poor position management?
90% investors have fallen the traps of these deadly mistakes! In your trading, are you more prone to blindly chasing breakouts, or holding onto losses hoping for a rebound?
Small mistakes like these can accumulate into heavy losses. Today, let’s talk about the 10 most common trading mistakes—how many do you have in your own trading?
Top 10 Most Dangerous Trading Mistakes:
Averaging down without a plan — Buying more to recover losses can actually amplify risk.
Letting small losses turn into disasters — Small losses that are ignored can wipe out your account.
Blindly chasing every breakout — Focusing on price without understanding context or logic.
No stop loss, or moving stops — Losses can snowball uncontrollably.
Frequent trading without reason — Dozens of trades a day can eat into profits via fees and emotional stress.
Overexposing one trade — Putting too many eggs in one basket can be catastrophic.
Thinking you’re smarter than the market — The market is always smarter; arrogance is your enemy.
Measuring success by P&L — Ignoring your system and process, letting short-term swings distort judgment.
Holding on to “it will rebound” hope — Gambling on luck instead of following rules often ends badly.
Poor position sizing — Too big or too small positions put unnecessary stress on your account.
💡 Discussion
Which of these mistakes do you find yourself making most often?
Do you lean more toward strict stop-losses, or waiting for a rebound?
Was there a single trade mistake that taught you a lesson and changed your trading habits?
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Another weakness is controlling my emotions. When losses build up, I sometimes overreact and double down without a solid reason. It feels like trying to “fight back” against the market, but usually just makes things worse.
Still, every loss has been a teacher. I’ve learned that consistency and discipline matter more than chasing wins or outsmarting the market. My key takeaway is simple: stick to the plan, respect stop-losses, and don’t let emotions dictate trades. Each mistake makes me a bit more cautious and mindful.
@Tiger_comments @TigerStars
One of the most common trading mistakes is FOMO-ing into the Hype Train. "Everyone is buying it!". That's great logic if you are chasing ice cream, but terrible for chasing meme stocks. By the time you hear the buzz, the smart money has already cashed out and sipping cocktails.
Another common trading mistake is ignoring risk management. No stop loss? That is like skydiving without checking your parachute. You might feel free, until gravity reminds you of reality.
Another mistake is falling in love with a stock. It is not your soul mate, it is just a ticker symbol. If it is tanking, don't write poetry. Write an exit strategy.
I must confess that I have been guilty of making all the above mistakes and much more. However I view these mistakes not as failures but lessons learnt to be a better investor.
@Tiger_comments @TigerStars
[Miser]@JC888 @Barcode @Shyon @koolgal @Shernice軒嬣 2000 @Aqa @DiAngel
Didn’t realize that the margin for this stock was only 30% and Tiger would close or sell down to meet the margin if I didn’t meet the safe margin level after review. Lucky I was able to trim down the total stock holding in time without making a loss.
Lesson learn don’t over chase and monitor the allowable level for each stock.
$CityDev(C09.SI)$
Nowadays, have learnt to take profit along the way. Secure profits always better than losses at the end of the day
在沒有計劃的情況下平均下跌——購買更多以彌補損失實際上會放大風險。
讓小損失變成災難——被忽視的小損失會讓你的賬戶化爲烏有。
盲目追逐每一次突破——在不瞭解背景或邏輯的情況下關注價格。
沒有止損，或者移動止損——損失會不受控制地滾雪球。
Unfortunately there have been multiple times I've strayed from this strategy and got greedy (human nature) and been burnt.
So best thing I found is to trade like a robot!!
1. Averaging down without a plan — Buying more to recover losses can actually amplify risk.
2. Letting small losses turn into disasters — Small losses that are ignored can wipe out your account.
3. No stop loss, or moving stops — Losses can snowball uncontrollably.
4. Holding on to “it will rebound” hope — Gambling on luck instead of following rules often ends badly.
5. Ego as I do not want to sell at loss. I always think I am buying a share for earning profit and not at loss, so I will hold on to it till it make profit before I decided to sell off. As a result, I can end up the share become zero value due to delisting.
However, all these mistakes still never change my trading habits. I never regretted holding on to the shares like $Alibaba(BABA)$ $Sea Ltd(SE)$ $Palantir Technologies Inc.(PLTR)$ $Tiger Brokers(TIGR)$ $Snowflake(SNOW)$
Check them in the history - “community distribution“
So I guess I'm at risk of having losses grow? Too stubborn to sell... maybe I'll be a little more pragmatic
@TigerEvents
Over time, I’ve grown to lean strongly toward strict stop-losses. They help remove emotion and force accountability. When a trade hits my predefined limit, I exit; no hesitation, no bargaining. I’ve also learned to size positions smaller so stops don’t feel punitive.
One turning point came from a tech trade that fell 40% while I kept averaging down, convinced it would recover. It never did. That loss reshaped my approach entirely; I began journaling trades, defining risk before entry, and respecting every stop. Since then, I’ve realised consistency and discipline, not prediction, drive long-term success.
These are the very common mistakes transfers do.
Many traders struggle not because of the market, but because of avoidable mistakes. The most common ones are trading without a clear plan, ignoring risk management, overtrading, and letting emotions like fear or greed control decisions. Another mistake is expecting quick profits without patience or continuous learning.
Success in trading comes from discipline – having a plan, managing risk, staying calm, and always learning from past trades.