equities What’s in a Market Cap? How do you calculate market cap? The formula to calculate market cap is share price x weighted shares outstanding, where weighted shares outstanding represents the equivalent number of shares of a particular share class that equates to the whole company.
announcement Polygon Integrates Nasdaq Basic Today, we’re proud to announce a new initiative with Nasdaq to integrate Nasdaq Basic data into the Polygon market data platform with the launch of Poly.feed Max.Poly.feed Max with
announcement Polygon.io partners with Cboe to deliver market data APIs for apps, websites, and displays. Unlimited APIs, running on world class infrastructure directly inside the exchange data centers, licensed for distribution to an unlimited number of end users.
equities Understanding Aggregate Bar Delays Sometimes users reach out to us confused about why they receive an aggregate bar late or twice through our WebSocket feed. This behavior is intentional and designed for quality assurance purposes on our
equities Understanding the SIPs At the core of the securities markets in the U.S. lies the Securities Information Processors (the “SIPs”). The history of SIPs goes back to 1975 when Congress established the concept as part
announcement US Stock Market Data APIs for Businesses & Market Professionals Introducing poly.feed: Access to real-time data from 5 top US stock exchanges & more.
api Trade ticks not matching Aggregates Aggregates ( OHLCV ) are a little more complex to calculate than just min,max,sum. There are condition matrix tables you must adhere to in the CTA and UTP specifications.
announcement Changes to Aggregate Feed We are making a couple small changes to the aggregate feed tick schema. We are removing a few less useful attributes, and adding some that have been much requested. The updated schema will begin streaming this upcoming Monday ( July 23rd, 2018 ).
api New Metadata APIs New Meta APIs available. Get information like company info, dividends, splits, news and more.
api Aggregate Stream Optimizations We have changed both channels to only broadcast updates on the tickers which have actually had trades in that timespan. Which means the average is ~1000 ticks/second instead of ~8000. This allows better throughput, and less processing messages of tickers that have not changed.
