AI workloads are transferring the burden of observation, search, and storage to every layer of the infrastructure stack. Datadog's 5/7 earnings surprise (+30%) and MongoDB's 5/7 +10.87% surge is a signal that the hypothesis that "AI creates new SKUs" is beginning to be confirmed by data. Dynatrace and Elastic are late to the same wave, and the valuation dispersion of the four is greater than ever.
FACT Datadog CEO Olivier Pomel stated on the Q1 earnings call on May 7, 2026, that "We have secured two major hyperscalers as new customers for the training environment of superintelligence labs." Revenue increased by +32.2% year-over-year, and FY26 guidance was revised upward by approximately $240M from $4.08B → $4.32B (Source: The Motley Fool Earnings Transcript, 2026-05-07; StockTitan, 2026-05-07).
INFERENCE The common theme of the four is the same. $1 capex in GPU → Demand for observability + vector search + log/event loading leads to. However, the position in the value chain and valuation are different. DDOG is the standard for APM and infrastructure monitoring, MDB is repositioning as a vector DB for AI workloads, ESTC is a search AI platform, and DT has enterprise full-stack observability + its own AI engine (Davis/Intelligence).
FACT DDOG is at the top of the group with Forward P/S 9.4x and EV/Sales 11.4x (Source: GuruFocus, 2026-04-03; Zacks/Finviz Research). ESTC is the most undervalued with Forward P/S 5x, DT is at P/S ~5x, but revenue is relatively small and $1B share buyback program approved (2026-02-09) can be supplemented in terms of EPS (Source: Daily Political, 2026-02-09; ir.dynatrace.com).
RUMOR As of April 2026, some sell-sides warned that "If OpenAI migrates to its own observability stack, DDOG may experience a revenue gap of $150M+" (Source: QuiverQuant quoted, 2026; Yahoo Finance, 2026). This is about 3.8% of DDOG's ARR, but it is large enough to signal a slowdown in growth.
NARRATIVE ESTC's Q3 FY26 guidance reflects delays in federal contract renewals and a slowdown in the custom AI app market due to the US government shutdown. FY26 revenue guidance of ~$1.7B is the lowest growth rate in the group at +17% (Source: Daily Political, 2026-02-26; Public.com Research).
Summary: All four are riding the same wave of "AI capex downstream," but DT (quality, share buyback) → DDOG (growth momentum) → MDB (repositioning) → The risk-reward profile differs in the order of ESTC (valuation trade).
Macro headlines (long-term fixed interest rates) act as a multiple ceiling for the entire group, but The individual earnings cycle outperforms the macro environment as the AI workload penetration rate goes from single digits to double digits.
Source: Q1 2026 Earnings (DDOG, MDB), Q3 FY26 Earnings (ESTC, DT) · GuruFocus, Public.com, Internal Estimates (2026-05-07). Bubble size = relative size compared to market capitalization. Horizontal axis = revenue growth rate (%) for the next 12 months, vertical axis = Forward P/S (x).
| Item | DDOG | MDB | ESTC | DT |
|---|---|---|---|---|
| Current Price | $180.79 | $294.09 | ~$51.6 | $36.85 |
| Recent Quarterly Revenue | $1.006B (Q1'26) | $695M (Q4'26) | ~$405M (Q3'26) | $515M (Q3'26) |
| Revenue YoY | +32.2% | +27% | +17% | +18% |
| FY Revenue Guidance | $4.32B (FY26) | $2.46B (FY26 actual) | ~$1.70B (FY26) | ~$2.07B (FY26) |
| Non-GAAP Operating Margin | 22% (Guidance) | ~23% (Q4 actual) | ~17% | ~28% |
| Forward P/S | ~9.4x | ~7.5x (est.) |