For Historical Market Capitalization data API, we cover all US stocks traded on NYSE/NASDAQ from 2017, and soon we will start to cover cryptocurrencies with historical market capitalization.

Quick Start

To get historical market capitalization data use the following URL:

  • AAPL.US is the ticker code and it consists of two parts: {SYMBOL_NAME}.{EXCHANGE_ID}, you can use a US ticker code with or without the exchange part (AAPL or AAPL.US).
  • api_token – your own API KEY, which you will get after you subscribe to our services.
  • from and to – the format is ‘YYYY-MM-DD’. If you need data from Jan 5, 2017, to Feb 10, 2017, you should use from=2017-01-05 and to=2017-02-10.

Register & Get Data

For testing purposes you can try the following API Key (works only for AAPL.US ticker):  demo:

As a result, you will get the following data in JSON format, please note the market capitalization is provided with a weekly period, not daily:

We have API limits 100 000 requests per day. Each symbol request costs 10 API calls. This API is available under the Fundamental and/or All-In-One package.

Register & Get Data