Polygon.io

Analyzing Market Sentiment with the Short Volume and Short Interest APIs

Learn how to use Polygon's Short Volume and Short Interest APIs to analyze market sentiment, spot short-selling trends, and identify potential short squeezes with real examples from NVDA and GME.

announcement

Benzinga Data Now Available on Polygon.io

Polygon.io is excited to announce a new partnership with Benzinga, significantly enhancing our financial data offerings. Benzinga’s detailed analyst ratings, corporate guidance, earnings reports, and structured financial news are now available through Polygon’s REST APIs.

release notes

Release Notes - June 2025

New APIs for short interest, short volume, and treasury yields. Benzinga data now available via expansion packs. Flat Files docs improved for easier access.

tutorial

Hunting Anomalies in the Stock Market

This tutorial demonstrates how to detect short-lived statistical anomalies in historical US stock market data by building tools to identify unusual trading patterns and visualize them through a user-friendly web interface.

release notes

Release Notes - September 2024

Explore the latest enhancements and tutorials in our September 2024 release notes, featuring new data center operations, advanced API functionalities, and comprehensive educational content designed to elevate your experience with Polygon.io.

announcement

Sentiment Analysis with Ticker News API Insights

Explore how Polygon.io's enhanced Ticker News API leverages advanced sentiment analysis for strategic market insights, featuring practical applications with real-world data.

tutorial

Analyzing the Market Impact of the CrowdStrike Outage

Explore our detailed case study on the CrowdStrike outage of July 2024, revealing critical insights into the Stock and Options markets' reactions, and demonstrating the power of Polygon.io's robust datasets.

announcement

Finding Connections with the Related Companies API

In this tutorial, we'll explore the capabilities of Polygon.io’s Related Companies API, where we learn how to identify and visualize intricate corporate relationships using Python and vis.js.

announcement

Build and Test Your APIs with Polygon.io Postman Collection

We just released the official Polygon.io collection on the Postman Public API network.

Understanding Nvidia's Stock Split Using the Stocks Splits API

The Nvidia stock split just occurred. Splits are not uncommon, and you need to ensure your algotrading systems continue to provide accurate market insights. Here's how you handle stock splits with Polygon.io

announcement

Announcing the Polygon.io Partner Program

It’s no secret we love Developers. 💜 We are always looking at ways to better collaborate, support, and recognize stellar ambassadors in our community. Today, we are excited to kick off the Polygon.io Partners program. We’d love for you to be a part of it.

IEX Cloud retirement. Migrate your apps from IEXCloud to Polygon.io

With the announcement the IEX Cloud are retiring their services later this year, we wanted to share a migration guide, and offer extended free trial discounts to try out Polygon.io.

api

Build a stock app with Polygon.io and Streamlit

Learn how to build a simple data app Snowflake’s Streamlit framework to visualize historical stock data using the Stock API.

tutorial

Learn How to Download Historical Stock Market Data

Learn how to easily download stock market data with Polygon.io. This tutorial covers both web-based and S3 client access, ideal for anyone looking to analyze historical stock market data effectively.

release notes

Release Notes - April 2024

Polygon.io enhances platform capabilities with the launch of Flat Files now included with paid plans at no extra charge, significant progress on the Chicago data center, new integrations with everviz and QuantConnect, and valuable tutorials for using Flat Files and managing data streams efficiently.

tutorial

Deep Dive into Trade-Level Data with Flat Files

Explore stock market trades with Flat Files, an easy workflow for accessing and analyzing comprehensive trade-level data across all stocks on any given day.

featured

Integration: QuantConnect

We are excited to announce our integration with QuantConnect! This offering empowers users with state-of-the-art research, backtesting, parameter optimization, and live trading capabilities, all fueled by the robust market data APIs and WebSocket Streams of Polygon.io.

announcement

Integration: everviz

We are thrilled to announce our latest partnership with everviz, bringing embeddable visualizations of Polygon.io data to any platform.

announcement

Historical File Downloads Included In All Plans – No Really

Polygon now includes daily historical Flat Files in all paid plans at no extra charge, featuring a new web-based File Browser and S3 access for simplified data exploration and integration.

tutorial

Pattern for Non-Blocking WebSocket and REST Calls in Python

This tutorial provides a step-by-step guide on implementing non-blocking WebSocket and REST API calls in Python, demonstrating efficient real-time data processing techniques essential for high-volume streaming applications.

release notes

Release Notes - December 2023

We introduce enhanced WebSocket API features, expanded crypto offerings, improved data latency, Slack integration for system monitoring, along with insightful case studies and practical tutorials.

case study

Case Study: Fey

Discover how Fey, a rising star in fintech, transformed their financial application's capabilities with Polygon.io's API services. Dive into our latest case study to see how we're powering innovation in finance.

Financials API Glossary of Fields

An individual financial report can have data points specialized for a certain industry, or even a specific company. To make the data more user-friendly and comparable across reports, we parse the XBRL and map tags to the generalized financial concepts that we return in our API.

tutorial

Mapping Market Movements with Polygon.io and D3.js Treemap

Learn how to create an interactive Treemap visualization of stock market conditions using Polygon.io's Snapshot API and D3.js.

tutorial

Building a Unix top-inspired Tool to Monitor the Stock Market in Real-Time

In this tutorial, we will learn how to build a real-time stock market monitoring tool using Python and Polygon.io's API, inspired by Unix's top command, to process and visualize streaming trade data across the US stock market.