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Position sizing when Adding positions

  • Post #1
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  • First Post: Oct 9, 2007 7:27am Oct 9, 2007 7:27am
  •  mjollnir
  • | Joined Sep 2007 | Status: Member | 40 Posts
Hi ,

I've been reading a post by phil on the advanced trading forum:
http://forexfactory.com/showthread.php?t=50528

Here is an extract:

Quote
Disliked
The way to combat this is to assume that the last winning position will be donated back to the market when the trend is over. If you’ve won three consecutive times, it’s reasonable to assume that you’ll be able to keep two of them. Six wins under your belt, it’s likely you’ll be able to bank at least five of them. This mentality allows us to continue participating in a trend, rather than sitting on the sidelines. If we can resign ourselves to the idea of donating the last trade, we’ll be more likely to continue participating in the trend until it becomes exhausted.


The problem with this simple method of adding 1 more initial lot size each time you think the market will rebounce is at the first steps of it:

It is okay to bank 6 when you have 7 positions (last one losing). But what about being breakeven when you are at the second step (2 initial lot size) and that the last one is a loser: you sell both and are breakeven.

So, I wonder if there is any know position sizing management for that kind of strategy. I thought about one:

Instead of adding 1 initial lot size, ie:
#1 (that the initial enter): 1 lot
#2: 2 lot (you lose here you are breakeven)
#3: 3 lot (you lose here you bank 2/3)
#4: 4 lot (you lose here you bank 3/4)


I would rather use this method, add half of your previous position to your current one:
#1: 1 lot
#2: +.5 lot = 1.5 position (you lose that last enter, you still bank 0.5 initial position lot)
#3: +.75 lot = 2.25 position
#4: +1.125 lot = 3.375 position

Of course after the 3rd re-entry (#4), you are .625 less than with normal position sizing (would be 4 instead of 3.375) but you risk/ratio has been smaller.

Hope I explained that clearly.
I used to be schizophrenic, but now we are sane.
  • Post #2
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  • Last Post: Oct 9, 2007 7:50am Oct 9, 2007 7:50am
  •  Big Wave Rider
  • Joined Jul 2007 | Status: C.E.O of BWR Investment firm | 4,736 Posts
Quoting mjollnir
Disliked
Hi ,

I've been reading a post by phil on the advanced trading forum:
http://forexfactory.com/showthread.php?t=50528

Here is an extract:




The problem with this simple method of adding 1 more initial lot size each time you think the market will rebounce is at the first steps of it:

It is okay to bank 6 when you have 7 positions (last one losing). But what about being breakeven when you are at the second step (2 initial lot size) and that the last one is a loser: you sell both and are breakeven.

So, I wonder if there is any know position sizing management for that kind of strategy. I thought about one:

Instead of adding 1 initial lot size, ie:
#1 (that the initial enter): 1 lot
#2: 2 lot (you lose here you are breakeven)
#3: 3 lot (you lose here you bank 2/3)
#4: 4 lot (you lose here you bank 3/4)


I would rather use this method, add half of your previous position to your current one:
#1: 1 lot
#2: +.5 lot = 1.5 position (you lose that last enter, you still bank 0.5 initial position lot)
#3: +.75 lot = 2.25 position
#4: +1.125 lot = 3.375 position

Of course after the 3rd re-entry (#4), you are .625 less than with normal position sizing (would be 4 instead of 3.375) but you risk/ratio has been smaller.

Hope I explained that clearly.
Ignored

I add differently then that, but everybody trades differently as well
here is my scenerio.
When I think there is a bottom or a good signal to start my first position in a (hopeful) trend I add .5 lot with a large stop loss that way if I am wrong I dont lose much, but if I am right then I will add at the first big retracement.
now depending on the strength and other variables determines the next lot which I usually add 1.5 to 2 lots and this is typically a wave three that I am adding to. then each add on after is .5 to 1 full lot depending on the circumstances

1) .5
2) 1.5 to 2
3 and 4) .5 to 1 but mostly 1
anything more than 4 add ons I go with .5 lot as the trend may be over or going into a major retracement.


Of course this is not really a rule for me but more of a guideline.
current market conditions of course are the biggest deciding factor of how much to raise the pot.
Just Trade It
 
 
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