How to Export NinjaTrader Chart Data — OHLCV and Indicator Values to CSV

How to Export OHLCV Bar Data from NinjaTrader

NinjaTrader 8 stores historical bar data in its own local database. To export it: open the Control Center, go to Tools > Historical Data (or Data Manager in some versions), right-click the instrument you want, and select Export. Choose the date range and timeframe, then confirm. NinjaTrader writes a CSV to your selected output folder.

The exported CSV uses semicolons as delimiters by default, not commas. The column order is: Date;Time;Open;High;Low;Close;Volume for intraday timeframes, or Date;Open;High;Low;Close;Volume for daily bars. The date format is YYYYMMDD and the time format is HHMMSS.

This export covers whatever historical data NinjaTrader has downloaded for that instrument and timeframe. If you need additional history, download it first through the platform's historical data download tools before exporting.

What the Standard NinjaTrader OHLCV Export Does Not Include

The Data Manager OHLCV export contains bar data only. It does not include: indicator values calculated from those bars, drawing objects or annotation data, trade history, or session-level notes.

This is a raw price data export. The indicator calculation layer lives entirely in NinjaTrader's execution environment and is not serialized to the bar data file. If your analysis workflow depends on specific indicator readings alongside price, the OHLCV-only export will not carry that context.

For structured export of drawing and annotation data alongside OHLCV, see Can You Export Drawings from NinjaTrader.

How to Export Indicator Values from NinjaTrader

To get indicator values into a CSV file, you write a NinjaScript indicator that calculates the value you want and writes it to a file on each bar update. NinjaTrader's NinjaScript environment has access to System.IO for file writing.

The basic pattern is: in OnStateChange for State.DataLoaded, open a StreamWriter to your target file path. In OnBarUpdate, if BarsInProgress == 0 and IsFirstTickOfBar, write the current bar's Date, Time, and indicator values to the StreamWriter. In OnStateChange for State.Terminated, close the StreamWriter.

This approach gives you a per-bar record of any indicator available in NinjaTrader's library or any custom indicator you have written. The output is a delimited text file you can open in Excel or import into any analysis tool. For an alternative to platform-dependent export, see Using Chart Annotation Data in Backtesting Pipelines With XLSX and CSV.

Combining OHLCV and Indicator Values in One File

There are two approaches to combining OHLCV bars with indicator values. The first is to write a single NinjaScript export indicator that outputs OHLCV fields and indicator values in each row — this keeps everything aligned to the same bar timestamp.

The second approach is to export OHLCV from the Data Manager and export indicator values separately via NinjaScript, then merge the two files in a spreadsheet or script using the shared timestamp as the join key. The timestamp format must be consistent between the two files for the merge to work correctly.

The single-file NinjaScript approach is cleaner for analysis but requires NinjaScript skills to implement. The merge approach works without custom code if the timestamp formats align.

Where NinjaTrader Export Falls Short and When to Supplement

The NinjaTrader export workflow — whether from Data Manager or via NinjaScript — is reliable for bar-by-bar data extraction but requires NinjaScript development for anything beyond raw OHLCV. Non-developers face a meaningful barrier to indicator-value export.

The other limitation is annotation portability: chart drawings, note text, and support-resistance levels drawn in NinjaTrader are not in the OHLCV or indicator exports. For workflows that need to carry chart context — not just raw data — alongside the bar data, a supplemental annotation export layer is required.

For that annotation layer independent of the platform, see Chart Annotation Export for Trading Journals in XLSX and CSV and Can You Export TradingView Indicator Values to CSV? Current Limits and Workarounds for a cross-platform comparison of indicator export approaches.

Can NinjaTrader export indicator values to CSV natively?

No. The Data Manager OHLCV export includes bar price and volume data only. To export indicator values, you need to write a NinjaScript indicator that uses System.IO.StreamWriter to write values to a file on each bar update.

What OHLCV data can you export from a NinjaTrader chart?

Using the Data Manager, you can export date, time, open, high, low, close, and volume for any instrument and timeframe NinjaTrader has downloaded. The output is a semicolon-delimited CSV. Intraday exports include a time column; daily exports do not.

What is the best way to get NinjaTrader chart data for external analysis?

For OHLCV bar data: use the Data Manager export. For indicator values: write a NinjaScript export indicator that writes per-bar indicator readings to a file alongside the OHLCV fields. Merge the outputs on the timestamp if using two separate exports.

What is the delimiter format for NinjaTrader's CSV export?

NinjaTrader uses semicolons as delimiters, not commas, in its default CSV export. When importing into Excel or other tools, choose 'semicolon' as the delimiter rather than comma during import.