Create a corporate events calendar with Massive and TMX Wall Street Horizon

See how to use Massive’s TMX Wall Street Horizon Corporate Events endpoint to build a real-time corporate events calendar covering earnings, dividends, conference calls, shareholder meetings, and more. This walkthrough shows how an interactive Streamlit dashboard pulls institutional-grade corporate events data, applies flexible filtering, and transforms normalized API responses into a clear, actionable view of upcoming and historical market events.

If you’re exploring how Massive’s partnership with TMX Wall Street Horizon can support event-driven research, trading preparation, or internal tooling, this demo provides a practical look at what’s possible when institutional-grade data meets lightweight analytics.

The code for this demo is located in our community repository:
https://github.com/massive-com/commun...

Key takeaways:
→ How to access institutional-grade corporate events data through Massive
→ How to pull earnings, dividends, conferences, and shareholder meetings via a single endpoint
→ How to filter events by ticker, type, status, and date range
→ How to visualize corporate activity in an interactive calendar and table view
→ How to turn normalized events data into a production-ready research tool

Chapters:
00:00 – Why corporate events data is hard to manage
00:18 – Introducing TMX Wall Street Horizon on Massive
00:40 – Overview of the Corporate Events endpoint
01:05 – Cloning the repo and setting up your API key
01:30 – Streamlit calendar walkthrough

You can find the blog post that goes along with this video here: https://massive.com/blog/build-a-corp...

Not financial advice.