stocks - How to get a complete list of ticker symbols from Yahoo Finance? - Stack Overflow
I managed to do something similar by using this URL: http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.industry%20where%20id%20in%20(select%20industry.id%20from%20yahoo.finance.sectors)&env=store%3A%2F ......