First Signal

We give you the facts, the moves, and, of course, The facts, the moves, and what we make of it all.

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Datadog DDOG

First Signal's file · in 1 issue · All companies

Software that watches other companies' apps and cloud servers and raises the alarm when something breaks.

Every time it made the issue

We cover a company only when it moves enough to matter. Each row is one of those days, what we made of it, and how the stock did over the next 5 and 20 trading days, next to the S&P 500.

DateWhereMoveOur read5 days later20 days later
Fri, Oct 30, 2026Big Moves, but No Explanation−11.5%Guilt by association. When the big AI spenders signal they will spend less, the companies that bill by how much computing their customers use get sold first, and Datadog, days before its own report, took the hardest hit.to cometo come

Its biggest days since September 2019

Best daysMove
Thu, Sep 19, 2019+39.1%
Thu, May 7, 2026+31.3%
Tue, Nov 7, 2023+28.5%
Worst daysMove
Thu, Aug 6, 2026−19.0%
Mon, Mar 16, 2020−17.9%
Tue, Aug 8, 2023−17.2%

How it took its last 8 reports

The stock's move in the first session after each quarterly report. Next report: Wednesday, November 4, 2026.

Results filedNext session
Thu, Aug 6, 2026−19.0%
Thu, May 7, 2026+31.3%
Tue, Feb 10, 2026+13.7%
Thu, Nov 6, 2025+23.1%
Thu, Aug 7, 2025−0.4%
Tue, May 6, 2025+0.3%
Thu, Feb 13, 2025−8.2%
Thu, Nov 7, 2024+1.1%

Moves are daily closing prices. Past moves don't predict future ones.