We are only focused on providing historical tick data. At launch we will provide over 4500 US stock tickers and over 120 FX crosses.
Yes, we include delisted tickers such as YHOO.
We provide several methods for data access:
The data is available for the period from Jan 1 2005 to 15 minutes prior to the request.
Yes, you can try out full one year samples for the 10 most active stocks at our free tick data samples page.
No, the data is delayed 15 minutes. Therefore the most recent data available will be 15 minutes prior to the request.
For the API we limit to 300,000 tick records per per minute. For the csv donwloads you can request unlimited data, however, it will only be delivered at the rate of 1 years per minute for each ticker.)