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ene100
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UNITED STATES
Joined: Sep 9, 2009
Posts: 17
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Is previous historical data updated? Historical screen backtests results look to have changed.

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Hi,

I have a screen that I ran on February 3rd, and exported and saved the results.

Running the screen this morning, while all of the trade dates are the same, the returns and number of positions have changed for most months.

Was historical data in any of the data sources (i.e. fundamentals, prices) modified between now and then? Is there a way to tell?

Thanks!

[May 13, 2010 7:21:57 AM]

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