ATEN vs NET: How A10 Networks and Cloudflare Compare (2026)

Same yardstick, side by side (as of July 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: ATEN is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. ATEN and NET share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined ATEN and NET exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

A10 Networks (ATEN) is a networking and cybersecurity company that sells application delivery and security products to enterprises, service providers, and cloud operators. Its core products include application delivery controllers (ADCs) that load-balance and optimize traffic across servers, and a suite of security offerings centered on DDoS (distributed denial of service) protection that defends networks and applications from volumetric attacks. A10 also offers products for IPv4 address management (carrier-grade NAT), secure traffic inspection, and analytics. The company sells through hardware appliances, virtual and software form factors, and increasingly subscription and SaaS-based models, serving telecom carriers, large enterprises, web-scale operators, and government customers. A10 is a small-cap company that competes against much larger networking vendors but carves out a niche in DDoS protection and high-performance application delivery, where its purpose-built systems and pricing appeal to cost-conscious and performance-sensitive buyers. Founded in 2004 and headquartered in San Jose, California, A10 runs a profitable, cash-generative business and returns capital to shareholders.

Full ATEN guide

Cloudflare operates a global cloud network that sits between internet users and the websites and applications they access, providing performance, security, and reliability services. Its core offering started as a content delivery network and DDoS protection: Cloudflare caches content close to users and absorbs malicious traffic before it reaches customer servers. Over time it has expanded into a broad platform spanning web application firewalls, zero-trust security (replacing traditional VPNs and securing employee access), DNS, bot management, and a developer platform for running code and storing data at the network edge (Workers, R2 object storage, and related serverless products). Cloudflare's network spans hundreds of cities worldwide, giving it scale advantages in latency and security intelligence. It serves millions of customers from free-tier websites to large enterprises, monetizing through subscriptions and usage-based pricing as customers adopt more products. The company is positioning its edge network and Workers AI platform to run AI inference close to users. Founded in 2009 and headquartered in San Francisco, Cloudflare is a high-growth infrastructure-software company expanding from security and performance into edge computing and AI.

Full NET guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• ATEN drivers: DDoS protection and security mix; Profitability and capital return.
• NET drivers: Expanding platform and land-and-expand; Global edge network as a moat.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: A10 is a small player competing against vastly larger and better-resourced networking and security vendors (F5, Cisco, Citrix, and cloud-native services), which can outspend it on R&D and bundle competing capabilities. For NET, cloudflare trades at a high revenue multiple that embeds years of strong growth, leaving the stock vulnerable to multiple compression if growth decelerates or software valuations reset.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick ATEN if you believe its drivers more; NET if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the ATEN and NET guides.

ATEN. A10 trades as a small-cap, profitable networking and security niche player. Its valuation reflects steady profitability, strong margins, and capital returns rather than rapid growth. The multiple is moderate, balancing reliable cash generation against modest, lumpy top-line growth and the competitive disadvantage of being small against much larger rivals.

NET. Cloudflare trades at one of the higher revenue multiples in infrastructure software, reflecting durable growth, a global-network moat, and optionality in edge compute and AI rather than near-term GAAP earnings. The valuation is sensitive to growth deceleration and broad software-multiple swings. The premium has compressed sharply during software-sector resets and re-rated when growth and free cash flow surprised positively.

Headline figures (approximate, early 2026): ATEN shows revenue (ttm) ~$250-275 million, operating margin ~20% (non-GAAP higher), gross margin ~80%, net income (ttm) ~$40-50 million; NET shows revenue (ttm) ~$1.8 billion, revenue growth ~25-30% year over year, gross margin ~75-78%, gaap profitability Around breakeven to modest losses; non-GAAP profitable.

ATEN and NET are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined ATEN and NET exposure against your real portfolio. It is not an investment adviser.