
Tagging 8-K disclosures with AI: corporate events, labelled by what actually happened
A SEC 8-K API that labels what actually happened. Query filings by event type (CEO departures, cybersecurity incidents, M&A), with source-cited tags.

rian

Introducing
Jan 29, 2021
We've updated the user interface on our WebSocket documentation according to our latest design patterns. An updated wscat example makes connecting to streaming data from stocks, forex, and crypto as easy as 1,2,3. New inputs make it easier to define parameters, and the updated scrolling behavior ensures everything you need is always within view.

Channel, parameter, and response attribute descriptions now have much more thorough and descriptive content. Response object examples have all been updated and accurately reflect the format of each response. Each response attribute is now thoroughly documented with the appropriate data type and description.

Each channel now includes a status indicator representing the channel's system status in the sidebar. The indicator will glow purple if you need to upgrade your subscription to access particular endpoints.
? OK ? Down ⚪ Deprecated ? Upgrade Required
Anyone can view and contribute to the source for our documentation. Contributors can quickly point out inconsistencies or typos and submit edits if they feel inclined. https://github.com/massive-com/platform-open-api-specs
Visit the new documentation at https://massive.com/docs/websockets

Quinton Pike
quintonpike
See what's happening at Massive

A SEC 8-K API that labels what actually happened. Query filings by event type (CEO departures, cybersecurity incidents, M&A), with source-cited tags.

rian

In this post, we'll walk through how Earnings Watcher built its analytics layer on Massive's options chains and snapshots, why Fair Market Value anchors its scanner, and how the same API pattern extended from options into post-earnings drift analysis on the underlying equity.

alexnovotny

Massive's LULD WebSocket channel streams Limit Up/Limit Down price band updates, halts, and resumptions for every NMS stock in real time.
editor