Data Trends for Investment Professionals

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API for Stock Data

Quandl offers a simple API for stock market data downloads. Our daily data feeds deliver end-of-day prices, historical stock fundamental data, harmonized fundamentals, financial ratios, indexes, options and volatility, earnings estimates, analyst ratings, investor sentiment and more. This post describes how our stock market data is organized, and explains how to access it. Data Organization: Time-series vs. Tables Quandl's data products come in many forms and contain various objects, including time-series and tables. Through our APIs and various tools (R, Python, Excel, etc.), users can access/call the premium data to which they have subscribed. (Our free data can be accessed...

API for Zacks Earnings Data

US Earnings Data Quandl is the largest, most comprehensive, most accurate source of Zacks earnings data on the internet. Data coverage includes consensus earnings estimates, actual earnings, earnings estimates trends and earnings surprises for thousands of North American companies. Investors assess a company's stock performance based on its estimated future earnings. A company's earnings forecasts are based on analysts' expectation of its future growth and profitability. Earnings estimates are usually reported as a "consensus estimate", which is the average of all estimates made by analysts who follow the company's finances. The most important factor in influencing a stock's value in...

Change to Quandl API Limits

We have made changes to our API limits as of November 21, 2016 at 8AM EST. Users of the Quandl API may be affected by these changes. Specifically, because of unsustainable usage levels, we are now prohibiting simultaneous API calls from a single user. New API Limits Registered users are now limited to one API request at a time, with additional requests being throttled until the first request has been returned. These changes will not impact subscribers of premium databases on Quandl. Open Database Users Premium Database Subscribers Concurrent calls to the API prohibited Concurrent calls to the API permitted (unchanged) 50,000...

Getting Started with the Quandl API

Every single dataset on Quandl is available via our API. The API is simple, consistent and completely free to use. Here's a quick and easy guide to get you started. This is not meant to be a formal reference for the Quandl API; merely a quick-start guide. To read the complete and definitive documentation, please click here. To start using the Quandl API: Sign up for a free API key Synopsis Here is an API call for FB stock data in CSV format: https://www.quandl.com/api/v3/datasets/WIKI/FB/data.csv Here is the same call, with some additional parameters appended: https://www.quandl.com/api/v3/datasets/WIKI/FB/data.csv?column_index=4&exclude_column_names=true&rows=3&start_date=2012-11-01&end_date=2013-11-30&order=asc&collapse=quarterly&transform=rdiff The second call gets FB stock...

API for Global Stock Data

Quandl now offers API access to stock prices from India, China, Japan and other countries. Quandl also provides stock fundamentals, sentiment, corporate actions and other extended equity data for global stock markets. (more…)

API for Currency Data

Using the Quandl API for Currency Data This document is a comprehensive guide to using the Quandl API to access our free currency and exchange rate data. If you haven't already done so, we recommend reading Quandl's general API documentation; the functionality will be a lot clearer if you do so. To start using the Quandl API: Sign up for a free API key Find the data you need: use the list below or use our search page. Start making calls: use our API reference page to learn the syntax. (more…)

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