NIFTYSTATISTICSTOOLS

Lets play a game , the name of the game is “Game of Trading” . I am stock market and you are investor. You have got 2 chances of investing you money , One time i will give you 200% return and other time i will give you -80% , or in reverse order , so it can either be
200% , -80%
OR
-80% , 200%
You have to decide in advance that how much percentage of your total capital you will invest each time (invest capital) and how much you will keep safe money (safe capital) , you have to decide for both the times in the start only .
Lets analyse different cases .
Case A : You choose invest capital as 100% first time and 20% for next chance

Case A.1 : Return was -80% first time and 200% next time .

Case A.2 : Return was 200% first time and -80% next time .


Case B : You choose invest capital as 20% first time and 100% for next chance
Case B.1 : Return was -80% first time and 200% next time .


Case B.2 : Return was 200% first time and -80% next time .


You can see that at last A.1 = B.2 and A.2 = B.1 , so it means that order of your invest capital ratio does not affect your result , it both the cases it can either become 28 or 252 (depending on the return order) …
What should you do ?
100% and 20% choice will always loose in long run , if you play this game over and over again for long run , Understand that in this game , you can make it “high risk high return” Game or “Extremely no risk , low return game” ,And your choice of your invest percentage will decide which game is it .
Characteristic of “High return High risk game” : Its possible to make great money in short term , but in long run you will loose .Characteristic of “Low risk , low return game” : You will Not make great return in short term , but with compounding effect ,you are bound to be a winner in long run .
Let see if we can choose a ratio (invest percentage) can give us some profit irrespective of the return order .
Lets choose 25% invest capital :
Case A.1 : Return was -80% first time and 200% next time .

Case A.2 : Return was 200% first time and -80% next time .


You can see that in any case your 100 becomes 120 , which is 20% return.
What if you choose 80% invest capital : In that case at last you will have 93.6 (calculate yourself) . So what should be the best percentage capital to deploy each time in this game .
I tried to make an Equation , with all variables
p = profit times (2 or 200/100)
l = loss times ( -.8 or -80%/100 )
C = Capital at the start
T = Trade factor (.25 means , 25% of the capital will be invested at any time)
We want to find optimum T , given any p and l (assuming that the trade will be done 2 times)
So , If you calculate the total capital after the 2 trades (do the maths) , you will get
Total capital = C (1 + pT) * (1 + lT)
So our original capital is getting multiplied by (1+pT)*(1+lT) , and we have to maximize this number .
lets say I = (1+pT) * (1+lT)
I = 1 + plT^2 + pT + lT
If we do some differentiation here with respect to T (people who dont know differentiation , just leave it) , and put dI/dT = 0
2plT + p + l = 0
T = – (p + l) / 2pl
So the best valeuof T is -(p+l)/2pl ..
For our earliar example , p = 2 , l = -.8
we get – (2 – .8)/ (2 * 2 * -.8) = .375
Which means , 37.5% of capital will be invested everytime , and with that our capital will become 122.5 and that is the max you can make without risk .
What if return = 200% and -90% , in that case p = 2 , l = -.9 , so T = 2 – .9 / 2 * 2 * .9 = 1.1/3.6 = 11/36 , means investing capital will be 30.555% always and that will give us max return .

What is the point i am trying to make ?
In any given sitution of making money , there may be a big risk of loosing it , we should always use these kind of tools and always be safe . Dont try to be very bold in stock markets.
People who make killing in the start often get killed somewhere on the way and people who make respectable and sufficient money with satisfaction become winner over long term .

Summary
When you do Investment or do trading , you should never put all your capital into it , one bad trade or investment and you will be ruined forever , better to risk only that much capital which can not take out of of the game , but just hurts a bit . Take small and risk-less profits if possible , Investing and trading is all game of probabilities . Use maths and logic to take smart decisions like discussed in this article .

I am starting a series of articles which will deal with “How to invest in stocks efficiently” . This post is Part 1 .
There are two important questions which you have to answer when you want to buy shares ? They are “What to buy” and “When to buy” ?
You may be familiar with Fundamental Analysis , Fundamental Analysis answers the question “What to buy” ? . It a study of companies Financial statements , cash books , markets study to find out the future prospects of a company. It answers the question “Will this company be a good buy for long term” ? , “Will it be more valuable than what it is now ” etc etc “
But !! , Even though you have picked up some excellent companies for your long term investments , That’s not the end of the story . Now the biggest challenge and question you have is “When to buy it” ?
You should not just go next day and buy the share , that’s not the right approach . There can be a price area where buying is best in terms of risk/reward .
Technical Analysis is the study of charts , price and volume patterns and other indicators derived from price and volume . Technical Analysis gives us hint on what can happen in future , understand that it only gives you chances, not a guarantee . So everything should be taken with crossed fingers , Decisions taken on basis of TA only increases your risk/reward scenario .
I will give you an example :
Reliance is a very good long term Investment (do your own analysis to find out why, but it is ) .
On Feb 1 2009 , Ajay and Robert want to invest Rs 1 lac in Reliance for long term . Both of them understand that Reliance is truly long term buy . Ajay invests in Reliance on Feb 1 , because share is going up and he feels its a good time to enter other . He buys the stock at Rs 1360 . After some days Stock starts falling and reaches around Rs 1,150 . Roberts buys the stock at that time .

Here you can see that Robert has got the stock at 15% lower price , which means his profits will always be more than Ajay’s by that much . What did Robert do ? Robert used simple Technical Analysis concepts and entered in the stock with better prices , It does not mean it will always happen , but there are good chances for getting better price .
In the above case of Reliance , there is no significant price difference , but there can be cases ,where there can be drastic differences , and it would be really worth to use basic Technical Analysis .
Dont be scared , I will tell you some very basic things of technical Analysis in some of next post .
I will talk about
Part 2 : Support , Resistance
Part 3 : Trend Lines
Part 4 : Simple Oscillators to use for short term investments .
Watch out for second part soon .
Please share any real life example which happened with you , May be we all can try to find out what could have been done to make a better entry or exit from stock .