KEN vs NRG: 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.

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. KEN and NRG 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 KEN and NRG 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.

Kenon Holdings was spun out of Israel Corporation in January 2015 as a vehicle for a set of unrelated stakes, and over the following decade it sold nearly all of them. Tower Semiconductor was distributed to shareholders in 2015, the Latin American power business (Inkia) went for about $1.3 billion in 2017, and the last ZIM shipping shares were sold in 2024 after realizing roughly $2.1 billion in total from a position originally bought for $200 million. What is left is one primary business: approximately 46% of OPC Energy Ltd, which is separately listed in Tel Aviv. OPC accounted for all of Kenon's revenue in 2025. It runs four gas-fired plants in Israel (Rotem 466 MW, Zomet 396 MW, Hadera 144 MW, Gat 75 MW) plus onsite generation for industrial customers, and it owns roughly 71% of CPV Group in the US, which holds interests in combined-cycle plants in Pennsylvania, Connecticut, Maryland, New Jersey and New York alongside a wind and solar portfolio. Kenon also still holds a 12% stake in Qoros, the China-based carmaker, which is a legal claim more than an operating asset.

Full KEN guide

NRG Energy is an integrated power company that both generates electricity and sells it, along with natural gas and home services, to end customers. It operates roughly 25 GW of diversified generation (natural gas, nuclear, solar, wind, and battery storage) and serves around 8 million customers under brands including Reliant, Direct Energy, Green Mountain Energy, and NRG, plus the Vivint Smart Home segment. The company is concentrated in the ERCOT (Texas) and PJM markets, giving it a large retail load book alongside a merchant generation fleet.

Full NRG guide

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

• KEN drivers: OPC's Israeli development pipeline; CPV consolidating its US plants into full ownership.
• NRG drivers: Data center and AI power demand; Retail power cash engine.

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: Concentration is the first risk and it is close to total: one 46% stake in one listed company, whose own results depend on Israeli electricity tariffs, natural gas supply and a war-affected operating environment. For NRG, nRG carries meaningful exposure to commodity and merchant-power price volatility, since generation margins move with natural gas and wholesale electricity prices.

Pick KEN if you believe its drivers more; NRG 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 KEN and NRG guides.

KEN. Kenon reports in US dollars and files a Form 20-F as a foreign private issuer, not a 10-K, so there are no quarterly 10-Qs and interim figures arrive as unaudited 6-K exhibits. OPC changed its presentation currency from shekels to dollars on January 1, 2026 while keeping the shekel as its functional currency, so dollar comparatives shift with the exchange rate even when volumes do not. The trailing P/E is not especially informative here, because reported profit attributable to Kenon swings with equity-method results, one-off recoveries and non-controlling interest allocations rather than tracking the value of the OPC stake.

NRG. NRG reaffirmed full-year 2026 guidance for Adjusted EBITDA of roughly $5.3 to $5.8 billion and free cash flow before growth of roughly $2.8 to $3.3 billion. Q1 2026 revenue of about $10.3 billion rose year over year, helped by integrating the LS Power portfolio, though GAAP net income fell to $125 million on acquisition and working-capital effects. The forward P/E in the high teens sits above the stock's historical range, and some fair-value screens flag it as extended.

Headline figures (approximate, August 2026): KEN shows revenue (ttm) ~$1.0 billion (FY2025 ~$872M; Q1 2026 ~$317M vs ~$183M), profit attributable to kenon (ttm) ~$80 million, about ~$1.54 per share, market capitalization ~$3.4 billion (~$65 per share on ~52.1M shares), trailing p/e and p/b ~41x earnings, ~2.3x the ~$1.5 billion of equity attributable to Kenon; NRG shows market cap ~$28-30 billion, revenue (q1 2026) ~$10.3 billion, 2026 adjusted ebitda guidance ~$5.3-5.8 billion, 2026 fcf before growth guidance ~$2.8-3.3 billion.

KEN and NRG 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 KEN and NRG exposure against your real portfolio. It is not an investment adviser.