Just an notice -- we changed the pricing to use adjusted pricing. This gives continuity of pricing makes it much easier for indicator calculations, and means you don't need to adjust the stock price for splits and dividends.

However also it means the fee calculations may be slightly off -- e.g. In 1999 an Apple share was $60, so purchasing $6,000 worth would give you 100 shares. With Interactive Brokers fee model this equates to a $1 fees per order. The adjusted price in 1999 was $15, which would give you 400 shares for $6,000 and the fee would be $4.

Its a small trade off but worth while in our opinion! Feel free to give us feedback here if you'd like the raw price.