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> : let me know what do you mean by portfolio capabilities ...
> 
> Portfolio optimization for the Sharpe Ratio. Maybe we're asking
> too much, but that's the ideal feature we need. 
And to me that means any or all of the following:
 * Run 1 system on N markets with same parameters on all markets.
 * Same, but with different parameters for each market.
 * Run N systems on M markets, perhaps with linkage between
   parameters.  E.g. system A runs on markets 1,2,3, and system B
   runs on markets 4,5,6.  I want to be able to optimize A with
   same params or different params on its 3 markets as above, 
   and also have B use some of the same values on its markets.
 * Handling any mixture of timeframes, e.g. markets 1, 3, and 5 are
   EOD, 2 and 4 are intraday, 6 is weekly.
Optimizing on Sharpe ratio is the most important measurement, but it 
should not be the only one.  User-specified "goodness" measure is 
best.  
Out-of-sample testing should be included -- e.g. tune the portfolio 
for Sharpe or other user-specified measure, but also show the 
performance of each parameter set on a set of unseen data.
Portfolio tests should include extensive statistics & charts on the 
portfolio performance.  Should be able to adjust the weighting of the 
different systems/markets within the portfolio, either as an 
optimization parameter OR after the optimization.
I'm sure there's more but that's what comes to mind...
Gary
 
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