FSLR vs JKS: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of September 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: FSLR 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. FSLR and JKS 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 FSLR and JKS 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.

First Solar is one of the largest solar panel manufacturers in the United States and the leading maker of thin-film solar modules. Unlike most competitors that use crystalline silicon, First Solar uses a cadmium telluride (CdTe) thin-film technology that it developed and manufactures at scale. This gives it a differentiated cost structure, strong performance in hot and humid climates, and a supply chain largely independent of the Chinese silicon ecosystem. The company sells utility-scale solar modules primarily to large developers and power producers building solar farms, mainly in the US, India, and other markets. First Solar makes money by manufacturing and selling these modules, and its US-based production qualifies for domestic manufacturing incentives. Headquartered in Tempe, Arizona, First Solar has expanded capacity aggressively across Ohio, Alabama, Louisiana, and India. It benefits from policy support for domestic clean energy manufacturing and from buyers seeking non-Chinese solar supply.

Full FSLR guide

JinkoSolar (JKS) is one of the world's largest solar photovoltaic module manufacturers, headquartered in Shanghai, China, and listed in the United States as an American Depositary Receipt (ADR) on the NYSE, where each ADR represents four ordinary shares. The company designs, makes, and sells solar modules, cells, and wafers, and has expanded into energy-storage systems. It shipped roughly 86 gigawatts of modules in 2025, holding its position as the top module supplier by volume for the seventh straight year. That scale, however, has not translated into steady profits. The global solar industry is in a severe oversupply, and module prices have fallen far faster than costs, compressing margins across the sector. JinkoSolar reported total revenue of about US$9.37 billion in 2025, down roughly 20% year over year, with gross margin collapsing to about 2.2% from 10.9% a year earlier and a full-year net loss. As a Chinese company traded through a US ADR, JKS also carries China-specific political, regulatory, currency, disclosure, and delisting-overhang risks on top of the industry's brutal price competition. It is a high-volatility, deeply cyclical stock tied to solar module pricing, Chinese manufacturing policy, and global energy-transition demand, not a stable holding.

Full JKS guide

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

• FSLR drivers: Domestic manufacturing incentives; Differentiated thin-film technology.
• JKS drivers: Scale leadership in a growing end market; Technology and storage expansion.

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: First Solar's fortunes are closely tied to policy, particularly US clean energy manufacturing incentives, which could change with political shifts. For JKS, the overriding risk is a severe, industry-wide solar oversupply that has pushed module prices below the production cost of many manufacturers, crushing margins: JinkoSolar's 2025 gross margin fell to roughly 2.2% from 10.9% a year earlier and it reported a full-year net loss on about a 20% revenue decline.

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 FSLR if you believe its drivers more; JKS 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 FSLR and JKS guides.

FSLR. First Solar is valued as a profitable, policy-advantaged solar manufacturer with substantial contracted backlog. Investors weigh strong current margins and incentive support against the cyclicality and pricing pressure of the broader solar industry. The valuation reflects both the durability of its domestic manufacturing position and sensitivity to policy and trade developments.

JKS. JinkoSolar's economics are dominated by the price of solar modules, which the company does not control and which fell faster than its costs during the 2024-2025 oversupply. Because the company reported a net loss in 2025, a trailing price-to-earnings ratio is not meaningful, and the stock trades on expectations for a module-pricing recovery, capacity rationalization across the industry, and the RMB rather than on trailing profits. Reported figures mix US-dollar revenue with RMB net-loss disclosure and are affected by foreign-exchange swings. All figures are approximate and dated; verify current numbers before relying on them.

Headline figures (approximate, early 2026): FSLR shows revenue (ttm) ~$4 to 5 billion, operating margin ~high teens to mid-twenties percent, net income (ttm) ~$1 billion or more, contracted backlog ~tens of gigawatts, multi-year; JKS shows revenue (fy2025) ~US$9.37 billion, down roughly 20% year over year, module shipments (2025) ~86 GW; #1 by volume for the seventh straight year, gross margin (2025) ~2.2%, down from ~10.9% in 2024, net income (2025) full-year net loss (about RMB 4.45 billion).

FSLR and JKS 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 FSLR and JKS exposure against your real portfolio. It is not an investment adviser.