Sourabh Sisodiya,CFA Profile picture
Sep 30, 2021 14 tweets 6 min read Read on X
Trading Mistakes & Lessons Learnt 🧵

1) I always keep my mistakes & lessons learnt in front of my screen while trading.
Bcz we as traders tend to commit the same mistakes everytime.

So seeing your learnt lessons everyday ensures that you avoid them.

#trading #mistakes
2) In 2017, I analysed all my trades and saw that I have majorly lost in stock futures and profits came only via index trading.

I accepted that I am not great at stock trading & been trading index only majorly since then & have never missed a day trading BankNifty
3) I decided to adjust all of my past losses to 1 % of capital to see the effect of capping the downside.

I would have had a gain of more than 230 % if I had capped losses at 1% of cap.

Lesson: Keep losses per trade less than 1% of capital no matter what !
4) While trading index options, I lost sometimes due to IV rise,flash crash, and option freezes.

Lesson: Never take markets lightly & Always keep protective stops in the system (and not in your mind) to keep loss in control in case of blackswan.
5) Being an option seller, I have a tendency to manage my position by rolling up/converting to calendar etc.

So many times I have wasted 1 or 2 weeks just to close a loss making trade at cost😢

Lesson: I do manage now but exit as soon sold options become ITM or 2 x in value.
6) “Option sellers eat like a chicken but shit like an elephant”

So always always manage risk especially while selling options.

Eg. Corporate tax rate cut day, demontisation, surgical strike, 2020 fall etc were brutal moves & if not managed properly can take years of profits.
7) I used to carry naked far otm puts overnight position on largecap stocks thinking I was safe but on 18th Aug 2017 Infy was down 13% as CEO resigned.
Luckily I had only 1 lot but learnt a good lesson

Lesson : Always hedge your overnight position
8) From the lesson learnt from INFY trade I got saved later in my career

I had a position in Yesbank but it opened 10% gapdown next day but I got saved as position was completely hedged.

Lesson: Learn from your mistakes,note them in journal & never repeat it again!
9) If possible also write about your biggest losses and how you felt that time so that you make sure you never go thru that emotional pain again by repeating earlier mistakes.
10) I committed the same mistakes for years.
Inspite of knowing that I shouldn’t commit them.
Bcz we as humans tend behave in a certain manner everytime.

So , it’s best to keep your lessons/mistakes hand written in front of you and read everyday before trading.
11) We as traders get complacement when we are on a winning streak & my largest losses have come after my largest winning streaks

Lesson :
Never get complacement & always remember that market is supreme🙏
So stay humble always !
12) I have also written about my largest losses & the reason for the drawdown.

Was it my fault ?
Did Market conditions change?
How I felt during the drawdown ?
What could I have done better ?

Lesson :
All this gives you the confidence to sail your next drawdown smoothly.
13) I think the key component in trading success is stock selection and limited focus.

-Select any 1 liquid instrument and analyse it’s historical behaviour in detail and build a rule based strategy around it.
-Stick to your strategy and never miss a trade in it.
14) Know all major levels, how the instrument moves generally & behaviour of that particular stock.
- Generate additional insights & incorporate the feedback & insights back in to your trading strategy.
- This sheer focus will give you the results you have been craving for.

End

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More from @sourabhsiso19

Oct 17
Mastering the Trade -  Key Lessons from John Carter
Trading isn’t about luck. It’s about discipline, risk management, and repeatable setups. Here’s what every trader should know 🧵 Image
1) Trading is a skill, not a gamble
Success comes from strategies you can repeat, not from guessing market moves.
Control what you can do with your entries, exits, and risk.
2) Mindset is everything
Most traders fail due to emotions, not setups.
Stick to your plan
Journal every trade: why you entered, what went right/wrong, how you felt
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Oct 4
Trading isn’t just “buying and selling stocks.”
It’s about knowing yourself, managing risk, controlling emotions, and protecting your capital.
If you’re serious about trading, study your game inside out — not just setups and profits.

A thread 🧵 Image
Trading success isn’t about the best strategy, it’s about mastering yourself:
Discipline. Patience. Consistency. Image
1. Discipline – follow your plan
Successful traders stick to their rules no matter what the market does. Impulse decisions and emotional trades are the fastest way to lose. Discipline keeps you consistent.
Read 9 tweets
Sep 30
Simple Guide to Position Sizing for Trading Success 
By Van K. Tharp
A thread 🧵 Image
1)  What is Position Sizing
Position sizing is simply deciding HOW MUCH to trade. It's about protecting your money while still making profits. Think of it as your trading safety net! Image
2) Why Position Sizing Matters
Prevents big losses that can wipe out your account
Helps you stay in the game during losing streaks
Makes your winning trades count more Image
Read 13 tweets
Sep 19
Warren Buffett nearly went bankrupt in 1962
His biggest bet was burning $4M a month. Bankruptcy was weeks away
Then a man named Harry Bottle saved his career in 6 days
The untold story of Buffett’s riskiest investment  🧵Image
1) Young Buffett thought he struck gold
He bet big on Dempster Mill, a struggling windmill manufacturer
Stock price: $18/share
Book value: $72/share
A 75% discount is the perfect Ben Graham-style bargain
By 1961, he owned 70% of the company Image
2) But the numbers were lying
Dempster made up 21% of Buffett’s fund
Cash: $166K
Debt: $2.3M
$4M of inventory sat rotting in warehouses some of it since 1909
Bankruptcy was weeks away. Buffett was trapped Image
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Sep 18
Trading in the Zone – Mark Douglas
Most traders lose not because of bad strategies… but because of bad mindsets.
Mark Douglas explains why trading psychology is the real edge.
Here’s the full breakdown 🧵 Image
1)The Core Idea

Trading isn’t about predicting the market.
It’s about learning to:
- Think in probabilities
- Control your emotions
- Execute with discipline
Success = consistency, not prediction.
2) Why Traders Fail

Douglas says most traders fall into 3 traps:
- Need to be right → They can’t accept losses.
- Random reinforcement → A few lucky wins create overconfidence.
- Emotional trading → Fear, greed, and hope drive decisions.
Result: they sabotage themselves, even with good strategies.
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May 16
Are markets really being manipulated on the expiry day ?

A detailed thread🧵 Image
1) Lets see last Nifty expiry on 8th May

We had war tensions
Lot of uncertainity going on

But straddle at 12 pm was quoting at 19😳

Infact 24400 CE had OI of 7.5 crore
This is highest ever OI on a single strike
2) This indicates that someone has opted for a quite expiry and inspite of the uncertainity is sure that 24400 CE won’t be taken out.

But now contrast this to yesterday(15th May)
Straddle was at 175 at 12 pm

And IV was spiking since morning
Read 11 tweets

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