Using price data

Prepare a price-data CSV

Chart Playback can load CSV price data prepared by the user.

With Chart Playback Data Tool, you can specify an instrument code or ticker and a date range, then save daily price data as a CSV file on your device.

The desktop version has a Windows release and macOS test builds. The Chrome extension is also publicly available on the Chrome Web Store.

1. Use price data with Chart Playback

Free members can sign in with Google or email OTP, then load and save CSV price data in the browser currently in use.

1. Prepare the CSV price data you want to use.
2. Sign in to Chart Playback as a free member.
3. Load the CSV and save it in the browser.
4. Open the saved instrument and replay the historical chart one bar at a time for decision-making practice.
5. Use practice records, notes, and drawings to review your decisions afterward.

CSV files and practice data are stored in the browser currently in use. Cloud storage and cross-device sync are not currently available.

Up to 10 price-data CSV files can be saved.

2. Other personal uses

CSV files saved with Data Tool are not exclusive to Chart Playback. Within the scope of personal, non-commercial, and non-business use by individuals for themselves, they may be used for analysis, decision-making practice, research, or record keeping.

For example, you may use them to:

• Review and organize dates and prices in spreadsheet software.
• Perform personal analysis or visualization in a Python-based or other analysis environment you prepare.
• Import data into analysis or backtesting tools that support CSV input.
• Keep historical data for your own research and records.

External tools may require different columns, date formats, encodings, or other details. A Data Tool CSV may therefore require adjustment before it can be imported.

Chart Playback does not assure compatibility or operation with third-party tools.

Check price data before using it

Data-source changes, market closures, instrument-information changes, and other factors can result in missing data or content different from what you expect.

• Check that the intended instrument or financial product is represented.
• Check that the required date range is included.
• Check dates and prices for unexpected values.
• Check for missing or duplicate data.
• Compare with other information sources when necessary.

Chart Playback and Chart Playback Data Tool do not provide investment advice, trading recommendations, forecasts of future price movements, or guarantees of profits.

Scope of use

Chart Playback Data Tool is intended for personal, non-commercial, and non-business use by individuals for themselves.

Business use by corporations, organizations, or sole proprietors, use for customers or other third parties, and use in services that provide data to third parties are outside the scope.

Being able to use Data Tool does not mean that retrieved data may be freely copied, published, sold, redistributed, or commercially used. Check and follow the terms, rights, and restrictions set by data providers and other third parties.