This site offers a year of historical data for the S&P 500 stocks. You can use these data to experiment with technical analysis.
The data offered here can also be downloaded using the Trademan technical analysis program. Trademan provides numerous tools to help you acquire and analyze data, screen for investment opportunities, and develop trading systems.
A file in Historical Data Format contains one record per line of text corresponding to the data for a single date. The record is arranged into fields representing respectively the Date, Ticker, Open, High, Low, Close, Volume for the day. The fields are delimited by commas, and the records are delimited by <cr><lf>. The text files may be loaded directly into Excel and similar spreadsheet programs.
The data are also available as daily update sets. These data sets consist of files which are archived together, one for each day. The individual files contain a record for each stock, organized as Ticker, Open, High, Low, Close, Volume, delimited by commas. The file name itself carries the date.
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