3 biggest NRR movers across public B2B SaaS, every Monday at 8am ET. Plus this week's new disclosures and one cell-level callout. Built directly from SEC filings — no fluff, no SaaS theory.
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Cust · Weekly Retention Briefing
Week of 2026-05-08
This week
Horizontal Collaboration median NRR contracted 7.7pp this quarter across 3 cells we track.
Datadog's NRR engine is product modules, not CSM relationships
Datadog has historically reported NRR above 130%, and the mechanism is well-documented in their earnings calls: customers land on one or two product modules (Logs, APM, Infrastructure) and then expand onto additional ones over time. The CFO has noted that customers using 4+ Datadog products are far stickier and have materially higher NRR than those on 1-2. So Datadog's CS motion is structured around 'next-best-product' - CSMs are explicitly trained to identify which next module a customer should adopt and to make the expansion case. That's why their CSM-to-customer ratio can stay relatively lean: the product surface itself drives expansion, and CS just lights the way.
Top 3 movers. Companies with the biggest QoQ NRR change in the past week. Each one links to its full historical time series.
This week's new disclosures. Every B2B SaaS company that reported NRR in the past 7 days, with the headline figure and the period.
Cell to watch. The vertical-stage-ACV cell whose median moved most. Where the segment is trending.
Why it exists
Most CS leaders learn about a peer's NRR shift months after the fact — either from a board deck slide or from a conference panel. By the time the news lands, the action is gone. This briefing closes that gap. The data is already public, in the SEC filing the company released last Tuesday. We just stitch it into one email so you don't have to read 35 10-Q's a week to keep up.
What's not in it
No SaaS-best-practice theory. The data carries the message.
No private-company gossip. Public-disclosure-only, every figure linked to the source.
No "sponsored content." If we ever monetize the briefing it'll be transparent.
Run by the team at Cust, an AI customer-success platform. The briefing is free and always will be — it's how we contribute to the CS community while we build the product.