Sorry getting this old thread alive, but there's something that's needs to be spoken out. About 1 year ago he updated his performance page, removed the actual performance numbers and instead it's only some nice looking charts.
E.g. The US momentum strategy chart, one barely sees SP500 down there, the momentum strategy looks awesome. However this year SP500 is at new highs wihle the momentum strategy it's not. The actual reality is not even close to what that chart is saying.
I queried Nick in the past about this unfortunate change, he said he changed it because the actual numbers were confusing. I fail to see how the actual numbers were confusing and this performance chart not...
Anyway in the past years seems that the chartist is investing a lot in marketing. Not that it's a bad thing, but sometimes makes one wonder.
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I tend to agree with you here. Charts and graphs are a good way to mask the unflattering truths that lurk behind many trading strategies. It would be nice to get a clearer picture of things by seeing actual figures like the Sharpe or Max DD.
That said I think if you asked Nick he would be happy to disclose any info as he does seem like a legit guy.