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Welcome to CSI, the world's leading supplier of accurate daily updates of O-H-L-C-V-OI data on world markets complete with official day volume and open interest statistics, and historical market prices reaching back over 60 years. Daily updates on futures, options, stocks, and cash prices are supplied via the Internet after daily market closings. Coverage includes all commodity markets traded worldwide and western world stock markets. 99% of the markets extend from the first day of trading. Users are attracted to CSI because of our reputation & unparalleled scope, accuracy, and longevity. We supply summary data to Yahoo!, and hundreds of other resellers who capture daily info through a File Transfer Protocol (FTP). CSI is ranked #1 in the world for accuracy. That study involves all known vendors of market information.
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CorrelationLab is now available.
Historical Only data is now available - no daily updates required.
We are Windows 7 ready. Unfair Advantage is Windows 7 compatible.
Charting and analysis is provided through CSI's flagship product known as Unfair Advantage® (UA). This product has great utility for individual investors who wish to analyze the market and support their trading efforts. Futures Magazine rated UA  "Excellent" in a review.
- Full list of software features
- Data supplied is updated daily through the internet and is ready moments after market close.
- Available data includes nearly all world trading venues.
Market data listings
- Order online and download the software instantly
- Credit card and PayPal accepted
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Data Error Rates
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Data Integrity Here at CSI we take pride in our clean data. If you happen to find a data point error, notify us and we will mail you a free pen.
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Need urgent assistance? Should you have an emergency with data collection or account access, you may email us at any time at urgent@csidata.com
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What do Yahoo and many other online providers have in common?
They all get their market data from CSI.
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Correlation Lab
Any experienced trader knows that a highly correlated portfolio is a recipe for disaster. The CSI Correlation Studies can be your expert guide to diversifying your portfolio and guarding against coincident losses in ongoing trading activity. 
