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Re: Periodicity ??



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Dimitris,

What does the letter "D" represent in your system? i copied and 
pasted your system and it stops at the "D". Thank you.

Bill

--- In amibroker@xxxx, "Dimitris Tsokakis" <TSOKAKIS@xxxx> wrote:
> Here is a trading system 
> Buy=Buyrule;
> Buy=Exremspan(Buy,D);
> Sell=Ref(Buy,-D);
> Short=Sell;Cover=Buy;
> applied on N100 database since March 2000.
> There is a clear periodicity of 65 trading days, a 
fundamental "frequency" of Nasdaq 100.
> The observation is almost the same for Long only or Long&Short 
trades.
> Dimitris Tsokakis
> BTW, the Long profits are interesting for this bearish period. 
> Another interesting result : After a main trough do not stay Long 
more than 32 to 33 days. 
> It is the time for bears to come again.