50/50 ?

> I never made my money in this game being "right" more
> than "wrong"... I always made my money by being more "right" > than "wrong"...

Hehe, exactly ! R = "right" / "wrong" :D
 
I was originally gonna ask everyone (politely) to shut up.. cos this thread is giving away a lot of 'secrets'...'secrets' that actually help make money... but, then, after considering it a little more, i'm pretty sure most people will just ignore it and keep searching for ever more exotic entry techniques (OOs spring to mind) for their edge..
 
Originally posted by daniel_m
I was originally gonna ask everyone (politely) to shut up.. cos this thread is giving away a lot of 'secrets'...'secrets' that actually help make money... but, then, after considering it a little more, i'm pretty sure most people will just ignore it and keep searching for ever more exotic entry techniques (OOs spring to mind) for their edge..

It does not matter if we talk about it because 99% won't be able to do it anyway! Dark gave away what I feel to be one of the keys to it all and yet people will still indulge their psycological shortcomings by peeling off...

And lpcarmgo is dead on with taking a statistical macro view of it all, but they will still stay attached to the micro results and as a result get in their own way...

That is the great thing about this game :) You can give them the "secrets" and they will look right past them looking for something more intricate and artificial...

Like that motorcycle Zen guy says "Truth knocks on your door and you say; go away I am looking for the truth and so it goes away!"

PEACE and good trading,
Publias
 
Originally posted by lcamargo
momo,

> You should be looking for those trades with high high
> probabilities of success.

The point is that, there is more than one way to achieve a given
return on investment:

EROI = t(RT + T – 1 )

As you said, you can use a system that provides a high probability of success (very high T). The problem is that such systems have a very low t for realistic values of R. This is the case of the system that you describe. If you make the calculations for your system, you’ll see that the EROI per trade is 0.74%.

You can try to maximize t, but in real life you’ll end up with a very low T. This is the case of systems that go for a home run.

Since I know the success rate of my system (T), what I like to do is to try to keep R constant by adjusting t.

I calculate all this after each trade. For example, I’m currently sitting at R=2.67 and T=0.5833. I only trade OEX options and my target EROI is 10%.

Knowing this, t = 0.879. My goal for R is 3, so my stop will be at t/3 or about 3%.

At this point, I only need to be right 27.28% of the time to break even and 55% to achieve my target of 10% per trade. If I achieve 55% and everything stays the same and I invest the same amount of money per trade, I’ll double that amount in 20 trades.


>>The point is that, there is more than one way to achieve a given return on investment:<<


First I would like to say. I appreciate your viewpoint. However, I need to ask you this: Not trying to be sarcastic here.


What part of my commentary made you think that I was saying, that there wasn't "more than one way"??

My overall comments were NOT in reference to your meticulous mathematical approach to Investing.

They were in response to the other posters statements on Trading. The idea of even suggesting 50/50 chance is an acceptable ratio for placing a trade.

Secondly, I'd have to say, "Slow down Tiger..." :)

this statement by you: >>If you make the calculations for your system, you’ll see that the EROI per trade is 0.74%.<<

Remember this quote, it helps me and will definitely help someone like yourself, someone obviously very analytically minded......

"Assumption - - is the Mother of All Fuck ups" ;-)

This is not "MY" system. Again, this is a system I'm testing aside
from my own. The very small tid bits of info that I offered up
in response to the other poster was there to give a construct
by which he could frame what I was talking about.

Now you are quoting me EROI percentages on this system
based on a few values expressed in a quick and dirty post...LOL

Don't get me wrong I see that you've put a lot of thought into
your calculations and obviously rely heavily on them to make
Investment decisions. I respect that. But before you can start telling me about EROI on a system you know nothing about.......
At least ask me for all the details about it!

Lastly, I don't expect you to answer this, but I think I need to know for my own edification.

Do you Trade for a living? Is it your sole source of income?




-momo
 
Originally posted by nitro


Hehe,

People look for the Holy Grail all the time...

Here it begins. Nicely done once again lcamargo .

nitro


Nitro-

Never said anything about a "Holy Grail"

Was simply giving one example of a system being tested.

Sounds like you never test any other trading systems.
Thats fine, you might have found the one that is working for you
currently.

Me, I'm always interested in different strategies and learning new and different approaches to trading. Hell I'm even considering cracking open my old college math books after L's post to me...


If you want to know my thoughts on the Holy Grail deal
just click my Nic and read my bio.....

I've got your Holy Grail right there...... ;-)





-momo
 
Momo,

I was not attacking the system you were talking about and I don’t want to start a flame war. I just happened to find this topic interesting and maybe got carried away a little, but it was not my intention to criticize you in particular. Please accept my apologies.

> This is not "MY" system. Again, this is a system I'm testing aside
> from my own. The very small tid bits of info that I offered up
> in response to the other poster was there to give a construct
> by which he could frame what I was talking about.

> Now you are quoting me EROI percentages on this system
> based on a few values expressed in a quick and dirty post...LOL

> Don't get me wrong I see that you've put a lot of thought into
> your calculations and obviously rely heavily on them to make
> Investment decisions. I respect that. But before you can start telling me about
> EROI on a system you know nothing about.......
> At least ask me for all the details about it!

Maybe I should shut up, but I think somebody may find interesting how to
find the expected EROI for a system with known characteristics:

Providing that you agree that the formula:
EROI = t( RT + T – 1) is true..

For the system you are testing:

T = 0.95
R = 2.0 since you are winning 0.10 and losing 0.05

(RT + T – 1) = 1.85

We don’t know t, which is the profit target % per trade. But since
we know that the target is 0.10, we can calculate t for a few
stock prices:

price t

1 t=0.1
2 t=0.05
3 t=0.03333
4 t=0.025.0
5 t=0.2
6 t=0.1667
25 t=0.004

I included 25 because it is close to the price of the QQQ. This means that
the EROI is 0.74%. Or $74.00 per each $10,000 or $185.00 for
each 1,000 shares.

> Remember this quote, it helps me and will definitely help someone like yourself,
> someone obviously very analytically minded......

> "Assumption - - is the Mother of All Fuck ups" ;-)

You are right, I assumed a few things:

I don’t know if the 0.10 and 0.05 cents include commission. Assuming they do and that
you always buy the same dollar amount you’ll double that dollar amount each 270.30 trades or each 77 days ( 3-4 signals per day ).

> Lastly, I don't expect you to answer this, but I think I need to know for my own
> edification.

> Do you Trade for a living? Is it your sole source of income?

No, I trade only 1.5 hours every day, before going to work. I work full time as a Systems Architect. Another of my pet statistics is that I make 5x trading than at my work, but I don’t enjoy trading 5x as much.
 
Originally posted by momotrdr
just click my Nic and read my bio.....
And a very interesting one at that. One thing, though, which may jar sensitivities - you state :

"My investment style back then was much akin to walking into a Vegas casino and placing all my money on 17-red and letting it ride. Fortunately for me, the ball landed on my number every time. Year 2001 was paid for, and I hadn't lifted a finger to do any work."

17 is black, not red :cool:
 
L-

np. In fact, I needed a bit of a refresher on the mechanics
of the EROI. I'm sitting here with calculator and pencil and paper
in hand! ;-)


-momo




Originally posted by lcamargo
Momo,

I was not attacking the system you were talking about and I don’t want to start a flame war. I just happened to find this topic interesting and maybe got carried away a little, but it was not my intention to criticize you in particular. Please accept my apologies.

> This is not "MY" system. Again, this is a system I'm testing aside
> from my own. The very small tid bits of info that I offered up
> in response to the other poster was there to give a construct
> by which he could frame what I was talking about.

> Now you are quoting me EROI percentages on this system
> based on a few values expressed in a quick and dirty post...LOL

> Don't get me wrong I see that you've put a lot of thought into
> your calculations and obviously rely heavily on them to make
> Investment decisions. I respect that. But before you can start telling me about
> EROI on a system you know nothing about.......
> At least ask me for all the details about it!

Maybe I should shut up, but I think somebody may find interesting how to
find the expected EROI for a system with known characteristics:

Providing that you agree that the formula:
EROI = t( RT + T – 1) is true..

For the system you are testing:

T = 0.95
R = 2.0 since you are winning 0.10 and losing 0.05

(RT + T – 1) = 1.85

We don’t know t, which is the profit target % per trade. But since
we know that the target is 0.10, we can calculate t for a few
stock prices:

price t

1 t=0.1
2 t=0.05
3 t=0.03333
4 t=0.025.0
5 t=0.2
6 t=0.1667
25 t=0.004

I included 25 because it is close to the price of the QQQ. This means that
the EROI is 0.74%. Or $74.00 per each $10,000 or $185.00 for
each 1,000 shares.

> Remember this quote, it helps me and will definitely help someone like yourself,
> someone obviously very analytically minded......

> "Assumption - - is the Mother of All Fuck ups" ;-)

You are right, I assumed a few things:

I don’t know if the 0.10 and 0.05 cents include commission. Assuming they do and that
you always buy the same dollar amount you’ll double that dollar amount each 270.30 trades or each 77 days ( 3-4 signals per day ).

> Lastly, I don't expect you to answer this, but I think I need to know for my own
> edification.

> Do you Trade for a living? Is it your sole source of income?

No, I trade only 1.5 hours every day, before going to work. I work full time as a Systems Architect. Another of my pet statistics is that I make 5x trading than at my work, but I don’t enjoy trading 5x as much.
 
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