How much data is available for Deep Backtesting?

Deep Backtesting allows to backtest on all data available in TradingView data storage. The length of historical data can vary depending on the selected symbol and chart timeframe. For daily and daily-based timeframes, we display all available data on the chart and the same data can be used in the Deep Backtesting mode. For intraday timeframes, TradingView keeps limited amount of data and the length on intraday timeframes can be shorter than on daily ones. If there is no data for the whole selected Deep Backtesting time period, the Strategy Tester will return the error “No data for the selected period and chart timeframe”. If only some intraday data is available within the selected time period, the strategy will be calculated as usual. Specifically for second-based intervals, the maximum length is last two weeks.