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Thursday, September 6, 2007

Forex Trading Systems 95% Lose As Their Curve Fitted Here's How To Spot Them

Forex trading systems are hot, you will see them everywhere - all promising you
big gains. The vast majority fail to deliver and the reason is curve fitting .
If you don t know what it is read on.

Definition

Curve fitting is using past data and bends the rules of the system, to fit the
data and make it profitable.

Because the rules of the system have been bent on a snapshot of past data (keep
in mind markets never repeat themselves exactly) it is curve fitted and chances
are it will lose in real time trading.

This is really like shooting at a barn door with a gun and then drawing a
bulls-eye around the shots AFTERWARDS, making them all bulls-eyes!

Hypothetical Illusions

The fact is most forex trading systems don t have a real time track record, they
only have one done in hindsight.

Now making money in hindsight is easy, especially if you curve fit it, but of
course trading without knowing the closing prices is much more difficult!

Most forex system vendors know there systems don t work and rely on curve
fitting and hyped advertising copy to sell their systems then the forex trader
wipes himself out and wonders why!

You take a loss and the vendor makes a guaranteed return selling you a junk
system they dont even trade themselves!

So How Do You Spot Curve Fitting?

Well when you see a hypothetical track record, be on your guard straight away
and look for the following:

1. Lots of indicators and lots of different rules (often with different rules
and parameters per currency)

2. Look for a track record with extraordinary growth and absence of drawdown.

A system that exhibits the above will be curve fitted.

Don t Fall For The Hype

Really you shouldn t bother trading forex trading systems which use hypothetical
track records but if you want to examine the logic, rules and parameters
closely.

Many vendors also keep their rules and parameters secret and don t even tell you
what they are - don t even consider these black box systems. most of the time
they just make the track records up.

For some reason forex traders take hypothetical records seriously, but there not
really worth anything unless you can study them and see their not curve fitted
and believe me most of them are!

Play Safe

Vendors who have to use hyped advertising copy and a hypothetical track record
generally don t have a product worth considering ONLY deal with vendors of forex
trading systems who can back their claims up with a real audited track record
over 2 years or more.

After all If they don t have the guts to trade their own system and prove it's
worth why should you?

Would you take driving lessons from someone who couldnt prove they could drive?
Exactly.

Next time you think of buying a forex trading system, check it out and the
chances are its curve fitted and this makes you odds on to lose if you use it.

Play safe only use a system that has a real time track record.

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