CALX vs NOK: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 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: CALX 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. CALX and NOK 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 CALX and NOK 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.

Calix, Inc. sells an end-to-end broadband platform to service providers (regional carriers, electric co-ops, and municipalities), combining intelligent access systems and subscriber premises equipment with cloud software, AI-powered agents, and managed services. Its differentiated model prices software on a per-subscriber basis, so revenue grows as customers add and retain broadband subscribers, pushing the business toward recurring, higher-margin income rather than one-time box sales. The company is heavily concentrated in the United States, where roughly 93 percent of revenue is generated, and it benefits from federal broadband programs such as the $42.5 billion BEAD initiative.

Full CALX guide

Nokia is a global supplier of telecom and networking infrastructure, based in Espoo, Finland, and listed in the US as an ADS under the ticker NOK. As of January 2026 the company reorganized into two primary operating segments: Network Infrastructure (Optical Networks, IP Networks and Fixed Networks) and Mobile Infrastructure (Core Networks, Radio Networks and the Technology Standards patent-licensing unit). A separate Portfolio Businesses segment holds units management considers non-core. Nokia also earns high-margin licensing income from a large 5G and cellular patent portfolio.

Full NOK guide

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

• CALX drivers: Shift to recurring software and services; US fiber buildout and BEAD tailwind.
• NOK drivers: AI and data-center networking demand; Margin recovery and reorganization.

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: Calix carries a premium valuation (a very high trailing P/E and a forward multiple in the low-30s), so any growth or margin disappointment can compress the stock sharply, as seen when shares fell more than 25 percent during the 2025 tariff shock. For NOK, nokia competes directly with Ericsson and Huawei in mobile networks and with Cisco, Ciena, Juniper and Arista in IP and optical, so pricing pressure and share shifts are constant risks.

Pick CALX if you believe its drivers more; NOK 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 CALX and NOK guides.

CALX. Calix trades on a growth-software valuation rather than a hardware multiple, reflecting its per-subscriber software model and reaccelerating revenue. The trailing P/E is extremely high because GAAP earnings are still thin, so the forward multiple (around 30x) and revenue growth are the more meaningful reference points. Remaining performance obligations of about $376 million add some forward visibility.

NOK. Nokia's trailing revenue is roughly $23 billion, and full-year 2025 operating profit was about EUR 2.0 billion. On reported (GAAP) earnings the P/E screens high, in the range of the 80s to 90s on a trailing basis, because restructuring charges and one-off items depress net income, so investors often look at comparable operating profit and free cash flow instead. The stock trades near the mid-single-digit dollars per ADS and pays a modest dividend.

Headline figures (approximate, Q1 2026): CALX shows revenue (ttm) ~$1.05B, q1 2026 revenue ~$280M (+27% YoY), non-gaap gross margin ~57%, market cap ~$3.0-3.5B; NOK shows revenue (ttm) ~$23 billion, q1 2026 net sales ~EUR 4.5 billion (+4% YoY), q1 2026 gross margin ~45.5%, fy2025 operating profit ~EUR 2.0 billion.

CALX and NOK 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 CALX and NOK exposure against your real portfolio. It is not an investment adviser.