Posts in stocks

More posts in stocks

whats in a market cap Feature Image

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.

otc stocks Feature Image

OTC Stocks Have Arrived

We've just rolled out OTC data to every stocks plan on the Polygon platform. No additional subscription is needed, just query any OTC ticker from our REST or WebSocket APIs and get data for all US OTC venues.

polygon integrates nasdaq basic to deliver market data to leading applications and websites Feature Image

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 Nasdaq Basic offers a comprehensive National Best Bid and Offer (“NBBO”) alternative to consolidated market data, and it includes all of the U.S. equities price, reference, and fundamental data needed to build your next financial application. Poly.feed Max makes all of this data accessible via unlimited APIs runni

greeks and implied volatility Feature Image

Greeks and Implied Volatility

Greeks and implied volatility are measures used by options traders to quantify risk. While rolling out our options products alpha, we received many requests to expose these in an API. After much research and hard work, we are excited to present, among other products, our new Options Snapshot API , which calculates Greeks and implied volatility on demand for a given contract. In this article we will discu

new stock financials api Feature Image

New Stock Financials API

We’ve just dropped our new Financials API featuring company financials sourced directly from SEC filings. We’ve standardized annual and quarterly company filings into fundamental accounting concepts that are easy to use and compare across companies and industries.

aggregate bar delays Feature Image

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 end, here’s why: Trades are occasionally sent to us late. FINRA, for example, has up to 15 minutes to report a trade that happened on any of the dark pools. We deal with these delayed trades differently for second and minute aggregates. Second Aggregation: For sec

understanding professional status Feature Image

Understanding Professional Status

U.S. stock exchanges like NYSE, Nasdaq, and others require data vendors such as us to collect and maintain personal information and employment information for some of our Stock API data recipients. The fees for the market data that are assessed to data vendors depends on how individual subscribers classify themselves as either Non-Professional Subscribers or Professional Subscribers, as defined below. Per exchange policies, you are considered a Professional Subscriber until you are qualified as

aggregate stream optimizations Feature Image

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.

Polygon Team Profile Photo

Polygon Team