How do I get past option chain data to backtest on? The spreadsheet has limited data only

General
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Course Name: Systematic Options Trading, Section No: 23, Unit No: 11, Unit type: Notebook

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Hello,

Depending on the type of data and duration, there are different data vendors from whom you can choose. We have compile a list in the section 3, unit 1, titled “Data Vendors” of the same course.

Do note that the data providers listed in the document are for indicative purposes only and not endorsed by QuantInsti. Before subscribing to any paid data/service, please perform your own analysis and due diligence.

Hope this helps.