Who this was forA B2B provider whose best buyers are publicly listed companies.
Reporting dates were looked up by hand, one campaign at a time. There was no store, no record of where a date came from, and no way to tell which rows could be shared.
Here's the case we made. A listed company reports on a date it sets in advance. The weeks around that date are when the numbers get written, read, and questioned. That's the buying day. It's the one date a seller can know a year ahead.
You can argue with that. Plenty of deals close on a random Tuesday. But a random Tuesday isn't on a calendar. A reporting date is.
A reporting calendar database, built from public filings and exchange sources.
Every row records where it came from. That's what lets the publishable subset be a view instead of a second build.
Some venue directories don't allow redistribution. We classified them and kept them out of every published view.
We also traced index membership to the right providers instead of assuming it.
The first count was wrong by 788 companies. We only found it because we checked the providers instead of trusting the first list.
This study doesn't report a reply rate. It's about when to send. That part holds whatever the copy says.
If your buyers are listed companies, send us the list. We'll show you each one's next buying day.
Related tools: Apify, Public Company Earnings Dates Finder, Earnings Window Timing
Some of the links on this page are affiliate links.
Client names are always kept confidential at MMG, so they have been removed from this case study.
Published October 2, 2026
Last updated October 2, 2026