Back Testing Data Availability
In back testing on 6/20/10 w/ VV 7 Intraday, I can only back test up to Wednesday, 6/16/10 instead the weekend (6/18/10). I want to do back testing to get ready for Monday's market. I can do better using the ProGraphics, except for some of the searches are not available. When I selected VV7 Intraday, I was told the data was 15 minutes behind real time. Now I am told that it will not be available until Tue 6/22/10 (6 days later!!!). This is a serious handicap and should be resolved ASAP.
Jim W.
Jim Wilhite
shared this idea
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Le Roy Galloway
commented
Backtesting to me causes concern. For one thing, the data used for backtesting has already been gathered, so the results of the test can be easily attainable. Being that each new day in the Stock market is undetermined and based solely on investors using different reasons(i,e, stock news, prior day results, unemployment news, etc), how can backtesting possibly give you a clear understanding of what tomorrow's volatility will be like to make a well informed decision on your investment. History data is fine, but can not predict tomorrow's outcome based on investing by the public.