Investors who want quick access to free historical stock quotes, look no further. QuotesTK quickly downloads securities grouped by their designated index. It keeps your indices up-to-date by automatically downloading the most recent securities lists to reflect delisted securities and security additions. Quotes are downloaded as ASCII .csv files formatted with Date, Open, High, Low, Close, and Volume to be imported into many popular charting applications. Not only that, all the data is back-adjusted for splits and dividends. And because of QuotesTK's multi-threading capabilities, you won't have to wait forever to start your analytical research.