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for various IDs to pick out the exact values that should be returned for each metric from Yahoo’s web pages.įor instance here the Gross Profit of 74,754 on has a data-reactid of “114”. So if a method that data scrapes is supposed to be returning you elements of an income statement, it will be searching through the page structure through many div, class, and span tags etc.

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The methods that HTML scrape gather their data by unofficially scraping the Yahoo Finance website, so their functionality is dependent on Yahoo not changing the layout/design of any of their pages.Īs a quick aside, data scraping works by simply downloading the HTML code of a web page, and searching through all the HTML tags to find the specific elements of a page you want.įor instance below is the Yahoo Finance Amazon (‘AMZN’) Income Statement page: As such, solutions attempting to gather data from Yahoo Finance use a mixture of direct API calls, HTML data scraping and pandas table scraping depending on the function and library/API in question. The Yahoo Finance API is no longer a fully official API, meaning that sometimes it does not provide all the information desired. While we can get access to an impressive range of data, the Yahoo Finance API sometimes lacks the bells and whistles of more specialised APIs.įor instance Alpha Vantage offers fantastic ready made modules that calculate common technical analysis indicators for you- which could save an enormous amount of effort if you want to build a trading model that incorporates any of these! Can get yourself rate limited/blacklisted.Why shouldn’t I use the Yahoo Finance API?

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» Here are some alternative (mostly) free data sources and guides: This makes the Yahoo Finance API perfect if you’re a relative beginner and just want to dive in and get your feet wet instead of spending hours puzzling over complex documentation. While compact, it can still help you out by providing functions in the modules that do tedious legwork for you- like automatically getting data into pandas data frames where appropriate. Some of the libraries have documentation that fits on a single page whilst retaining functionality that is focused but sufficient for most normal use cases.

CASHFLOW 101 GAME LIST OF CONTENTS INSTALL

Depending on the avenue you pick, setup ranges from a couple of lines of code to install libraries, to creating an account to access personal API keys and then just calling an API with a specific URL (depending on the data you want) and these keys. On-top of the core standard data, the Yahoo Finance API offers extras such as options and fundamentals data as well as market news and analysis, which alternatives such as IEX and Alpha Vantage don’t always have.

However, there are also third-party APIs with more support that do charge for their higher usage plans, but even they tend to have free tier options. One good reason is because it can be completely free.

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We will discuss the pros and cons of several of the unofficial APIs/libraries that now exist to access this data, and then go through how to use one of them in detail. Yahoo used to have its own official API but this was shutdown in 2017- we will go over some possible reasons why briefly at the end of this article. Some of the offerings include market data on Cryptocurrencies, regular currencies, stocks and bonds, fundamental and options data, and market analysis and news. The Yahoo Finance API is a range of libraries/APIs/methods to obtain historical and real time data for a variety of financial markets and products, as shown on Yahoo Finance.

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