More posts in release-notes
Massive has added llms.txt support to its API docs, allowing AI assistants to fetch structured markdown directly and skip manual HTML copying. Following the llms.txt spec, similar to robots.txt but for AI accessibility, it provides predictable URLs for easy parsing.
rian
Massive has partnered with TMX Wall Street Horizon to bring corporate events data directly into the Massive API. The TMX Corporate Events endpoint provides normalized, daily-updated insight into thousands of tickers going back to 2018, all accessible through Massive’s API.
alexnovotny
TL;DR — Massive has partnered with ETF Global® to bring institutional-grade ETF data directly into the Massive API. With five new endpoints covering constituents, fund flows, proprietary analytics, profiles, and taxonomies, developers get normalized, daily-updated insight into ETF holdings, capital movements, risk/reward metrics, and classifications across 3,000+ global ETFs—all accessible through streamlined API calls with flexible add-on subscriptions. Accessing comprehensive and normalized E
alexnovotny
In this demo, we’ll showcase a small Python utility that screens for iron condors on SPY (or any highly liquid symbol) using Massive’s options API.
alexnovotny
Polygon.io is now Massive.com. The rebrand reflects our focus on scale, reliability, and continued innovation. Your APIs, accounts, and integrations continue to work without interruption.
editor
Effective Nov 3, 2025, bid_size/ask_size will be reported in shares (not round lots) across Stocks Quotes REST API, WebSocket, and Flat Files, per SEC MDI rules. The rule is forward-looking and we’ll also backfill history for consistency. Most users need no changes.
editor
There are four new fundamentals endpoints, one daily-refreshed ratios feed, and a developer experience designed for screens, research, and automated reporting.
alexnovotny
In this demo, we’ll build a small Python utility that pulls only the option contracts you’d consider for a covered call expiring today (0-DTE) on SPY. Along the way, we’ll explain not just what to do, but why each step matters—especially if you’re new to options or market data. Who this is for: developers comfortable with Python who want to automate an options workflow—even if you’re still learning options. You must have an Massive Options Advanced plan for this demo to work properly. What
alexnovotny
Massive 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 Massive’s REST APIs.
editor
New APIs for short interest, short volume, and treasury yields. Benzinga data now available via expansion packs. Flat Files docs improved for easier access.
editor
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 Massive.com.
editor
Massive.com 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.
editor
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.
editor
We've introduced historical second aggregates based on user feedback, and enhanced our system monitoring to ensure you're always updated in real time.
editor