Four companies sit between the world's web traffic and the servers answering it, and all four told investors the same thing in eleven days: business is better than we said in April. F5, whose BIG-IP appliances and NGINX software load-balance and secure application traffic for banks, governments and carriers, reported on 27 July. A10 Networks, which sells Thunder application delivery controllers and distributed-denial-of-service protection boxes to telecom operators and cloud providers, followed on 5 August. Akamai, the original content-delivery network now rebuilding itself as an edge-compute host, and Cloudflare, whose consumption-priced security and developer platform runs on its own global network, both reported on 6 August. Every one beat. Every one raised full-year guidance. Only Cloudflare's shares went up.

The margin is the story, not the revenue

Akamai is the clearest case of a business that grew and a shareholder who lost. Revenue rose 5.4% to $1.10bn, but gross profit fell 0.5% to $613.8m as gross margin dropped to 55.8% from 59.1%, and GAAP operating income collapsed 47% to $80.3m. The cause is deliberate: Akamai has signed more than $2.8bn of multi-year cloud-infrastructure commitments this year, including a $600m four-year deal with a US robotics firm, and is spending to serve them — capital expenditure reached 32% of revenue in the quarter and is guided to roughly 40% for the year, funded by $3.5bn of zero-coupon convertible notes raised in May, with buybacks suspended. Its legacy delivery business shrank 6%; security grew 10% and cloud infrastructure 39%. The stock fell 6.76% on the print and HSBC cut it to Hold with a $123 target on margin concerns. Akamai is the cheapest name here at 6.96x trailing gross profit and 17.4x forward earnings — but that forward multiple rests on consensus 2026 earnings per share of $6.69, which is 5.0% below 2025's $7.04.

Cloudflare is the mirror image. Revenue growth accelerated for a fourth straight quarter to 35.9%, dollar-based net retention reached 120%, remaining performance obligations rose 38% to $2.73bn, and gross margin ticked up 30 basis points sequentially to 73.1% — its first sequential gain in eight quarters. Management said more than half its network traffic is now automated AI agents and that it is staying out of the capital-spending race: network capex was 7% of revenue, guided to 14-15% for the year, against Akamai's 40%. Goldman Sachs raised its target to $389. At 59.7x trailing gross profit and a 0.35% free-cash-flow yield, it costs roughly seven times what its three peers do per dollar of gross profit.

The two box vendors

F5 is having its best hardware year in a decade. Fiscal third-quarter systems revenue grew 32% and total product revenue 19%, the eighth straight quarter of double-digit product growth, on a refresh cycle management expects to persist as software support for its older iSeries appliances ends in fiscal 2027. Gross margin reached 82.2%; free cash flow was $281m. It beat by 65 cents and rose about 1.5%. Two constraints explain the muted response: F5 declined to lift its fiscal-2027 gross-margin guide of 80-82%, citing unresolved memory and storage component pricing — DRAM contract prices are still climbing double digits quarter on quarter — and consensus has earnings growth decelerating from 12.6% this year to 4.0% next. At $416.94 the shares sit slightly above the $413.94 average of 20 analyst targets.

A10 is the genuine divergence. Revenue growth has accelerated four quarters running to 15.5%, enterprise revenue rose 73% to $48.0m, guidance went to 12-14% growth from 10-12%, and adjusted EBITDA was 30.5% of revenue. The shares fell 9.6% the next session and sit 40.6% below the $38.50 average target. The reason is in the 10-Q: Microsoft is roughly 37% of revenue, tied to a rollout, while service-provider revenue fell 23%. GAAP operating income also fell 12.5% despite the revenue gain.

Do the businesses explain the moves? CONFIRMS for Akamai, F5 and Cloudflare — shrinking gross profit, a decelerating earnings outlook and accelerating growth respectively. CONTRADICTS for A10, where every reported line improved. On valuation: JUSTIFIED for Akamai's de-rating; STRETCHED for Cloudflare and for F5 above its consensus target; INCONCLUSIVE for A10, whose discount is a customer-concentration charge, not obviously an error.

The tape agrees with that reading. All four traded with their 50-day averages above their 200-day through the spring; Akamai broke that pattern on 2 July, F5 the session after its print, A10 two sessions after its. Cloudflare has held it since 5 May.

The setup

Where it stands — Four traffic-delivery vendors beat and raised within eleven days; only Cloudflare, the most expensive, was rewarded.

Would confirm — A10 filing a September quarter with Microsoft below 30% of revenue while total growth stays above 12%.

Would invalidate — Akamai's Q3 gross profit falling again year on year, or 2027 delivery decline steepening past mid-single digits.

Watch next — Akamai's Q3 report, when the $2.8bn of cloud contracts begin revenue recognition in Q4 2026.

Valuation — Trailing price-to-gross-profit: Akamai 6.96x, A10 7.93x, F5 8.59x, Cloudflare 59.7x.