For purposes of back-testing (historical testing) you will need to purchase data in the format and time-frame required for the system(s) you are evaluating.
It is not always easy to compare vendors prices and products, so we make the following information available in tabular form for each vendor who responds to our request for information.
For more specific information, contact the data vendor directly.
If you are a data vendor and would like to be included in these tables, please click here and fill out the questionnaire.
Click Here for another in-depth Data Comparison