Market snapshot · September 18, 2026 close
S&P 500 (SPY) $761.69 −0.13% Nasdaq-100 (QQQ) $721.45 +0.60% Dow (DIA) $515.88 −0.48% Russell 2000 (IWM) $284.10 −0.52% 10-Year Treasury (IEF) $90.80 −0.49% Crude Oil (USO) $153.82 −0.93% Gold (GLD) $401.17 +0.74% US Dollar Index (UUP) $28.39 −0.02% Volatility (VXX) $17.76 +0.31% Semiconductors (SMH) $573.00 +2.17% Silver (SLV) $59.93 +1.65% Emerging Markets (EEM) $67.03 +0.19% Bitcoin (BTC) $81,055.00 +4.51% Ethereum (ETH) $2,630.20 +5.92% S&P 500 (SPY) $761.69 −0.13% Nasdaq-100 (QQQ) $721.45 +0.60% Dow (DIA) $515.88 −0.48% Russell 2000 (IWM) $284.10 −0.52% 10-Year Treasury (IEF) $90.80 −0.49% Crude Oil (USO) $153.82 −0.93% Gold (GLD) $401.17 +0.74% US Dollar Index (UUP) $28.39 −0.02% Volatility (VXX) $17.76 +0.31% Semiconductors (SMH) $573.00 +2.17% Silver (SLV) $59.93 +1.65% Emerging Markets (EEM) $67.03 +0.19% Bitcoin (BTC) $81,055.00 +4.51% Ethereum (ETH) $2,630.20 +5.92%

Competitive Comparison

Datadog vs. Dynatrace

Two cloud observability platforms serving the same growing telemetry-monitoring market, from different starting points on breadth versus depth.

MetricDatadog (DDOG)Dynatrace (DT)
PEG ratio3.680.82–1.49 (varies)
EV/EBITDA1,052.82x (small EBITDA base)38.19x
Market cap$93.64B$13.44B

PEG ratio, compared

DDOG
3.68
DT
1.49 (high end)

Same PEG ratio figures as the table above, plotted for a direct read. Bold = held in this book.

Market cap, P/E, PEG, EV/EBITDA, and capex sourced via public filings and financial-data aggregators (GuruFocus, StockAnalysis, company earnings releases), as of August 2026. PEG ratio sourced primarily from GuruFocus where available; different providers use different growth-rate assumptions, so figures elsewhere for the same stock can vary by several multiples. Gold-highlighted column(s) indicate the name(s) actually held in this book.

Why Datadog over Dynatrace

Dynatrace's EV/EBITDA is dramatically lower than Datadog's, reflecting a more mature, higher-margin business already past $2 billion in ARR with consistent double-digit growth — a genuinely strong, less speculative business by that measure. I hold Datadog specifically for its platform breadth: it covers infrastructure, application, and log monitoring in a single unified product built for a cloud-native, multi-service architecture, while Dynatrace's strength is traditionally deeper in APM (application performance monitoring) for more complex enterprise environments. Both are legitimate ways to own the same broader observability-market growth; I've chosen the broader platform bet over the deeper specialist.