You can backtest in TS on minute, tick or volume charts. Minute based data is available for download and backtesting over many years. While tick and volume data are only available for a 6 month look back, if you're a TS client and you maintain your cache, you can build up a history of more than 6 months.
I know that TS has discussed making more than 6 months of tick and volume data available, but I don't know where that effort stands.
I know that TS has discussed making more than 6 months of tick and volume data available, but I don't know where that effort stands.
