Using think or swim for something on ES, intra day data only goes back about a year, how do I get a few years back to display, need a 3rd party feed of some sort ? Thanks
You can try CQG or Rithmic in Sierrachart, Multicharts or Motivewave. I do not think that TOS takes external data.
Another option is Tradestation. If you can leave $2k in the acct you will get free live market data & historical data. Stocks and Indexes - Tick-by-tick data is available for thirty days back, one-minute data for ten years back, and daily data for more than 30 years back. Futures - Tick-by-tick data for thirty days back, one-minute data since January 1982, pit data for individual contracts (delivery month/year) since 1970, and back-adjusted continuous contracts since the 1960s.
Is access to TradeStation's webAPI for futures initiated from one of their websites, or can I get permissioned and started from the trading platform?,