Correlation strategies

Does anyone know a site where I can get (free?) correlations between stocks? ie input 2 stock names and get a correlation for a given period - hence, it should have it's own datafeed too. And if not a site, a simple platform that will do the same thing. Surprisingly, many trading platforms have a range of indicators that can be implemented (moving averages, MACD, etc) but no use of correlation.

thnx

Jon
(ajmyers@msn.com)

www.impactopia.com
www.pairstrading.com
www.pairstrader.com

are a few sites that I remember from when I used to trade stocks (pairs)

good reading material if you do a search for pair trading on www.elitetrader.com as well

hope this helps

Are you doing relative value trading???

thanks for that

the problem really is that though there are some sites that offer correlation (even with a feed) the time period is fixed - they also are not clear on the period being used, for example Yahoo! provides a correlation for any stock with its major index. But what period are they using? Ideally what is needed is a site that allows a correlation to be run and for the user to be able to change the time period as needed.

No - just want to run correlations with indexes and other stocks for different time periods

Why? you got some kind of dispersion or arb idea?

I know what you mean by arb, but what would be a dispersion strategy?

Is spread-trading = pairs-trading?