I'm running a strategy across over 100 ETFs and am getting good trade performance metrics (profit/trade, profit) but exposure is small (<30%) and bursty (i.e. some time periods have 100% exposure and dropped trades vs others have <8% exposure). To address this ..

1) What's a recommended position sizing strategy to adopt? I see several options, but not sure of some of them even after reading the brief documentation

2) How do i determing correlated symbols (i.e. symbols that enter trades at the same time), so that i can remove them from the dataset and increase my positions on uncorrelated symbols?

thanks
Kiran

2) Some helpful resources:

* FAQ: Is it possible to calculate correlation?
* Correlation Matrix strategy