ANET vs DDOG: Which Is the Better Buy?
Side-by-side comparison of Arista Networks, Inc. and Datadog, Inc. — fair value, conviction, valuation metrics, and QuantHub research signals.
Updated 2026-09-25.
Arista Networks, Inc. · Technology
$203.47
+15.4% upside to fair value
Med Conviction
Grade C
High Quality
VS
Datadog, Inc. · Technology
$256.92
+28.7% upside to fair value
Med Conviction
Grade C
High Quality
QuantHub Verdict
DDOG has more upside to fair value
(+28.7%).
These are model outputs — not personalized investment advice.
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Valuation & Fundamentals
| Metric |
ANET |
DDOG |
| Current Price |
$203.47 |
$256.92 |
| Fair Value Estimate |
$234.80 |
$330.72 |
| Upside to Fair Value |
+15.4%
|
+28.7%
|
| Market Cap |
$256.2B |
$91.5B |
| Forward P/E |
—
|
—
|
| EV / EBITDA |
49.7x
|
350.6x
|
| Price / Sales |
24.3x
|
23.1x
|
| Price / FCF |
49.7x
|
78.9x
|
| Revenue Growth YoY |
+37.7%
|
+35.6%
|
| Gross Margin |
63.0%
|
79.5%
|
| Operating Margin |
43.1%
|
0.4%
|
| Return on Equity |
30.8%
|
4.6%
|
| Dividend Yield |
0% |
0% |
| FCF Yield |
2.01%
|
1.27%
|
| Analyst Consensus |
Strong Buy
|
Strong Buy
|
Investment Thesis
Arista Networks designs and sells high-performance Ethernet switching and routing hardware plus its extensible EOS network operating system, and it sits directly in the path of the AI data-center build-out where networking, not compute, is increasingly the bottleneck. The business quality is genuinely high: TTM gross margin of 63.0%, TTM operating margin of 43.1%, TTM net margin of 38.4%, and ROE…
Datadog is a cloud observability platform that unifies infrastructure monitoring, application performance management, log management, security, and incident response into a single SaaS offering used by developers and IT operations teams across North America and internationally. The business quality is high on the top line: revenue grew 35.6% year over year in the most recent quarter, TTM gross ma…
Accumulation Zones
| Metric |
ANET |
DDOG |
| Zone Low |
$176.10 |
$248.04 |
| Zone High |
$199.58 |
$281.11 |
| In Buy Zone? |
No
|
Yes
|