BWA vs MGA: 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: MGA 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. BWA and MGA 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 BWA and MGA 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.

BorgWarner makes the parts between an engine or a battery and the wheels. Four reportable segments carry the business: Turbos & Thermal Technologies (~$1.44 billion of second-quarter 2026 sales), Drivetrain & Morse Systems (~$1.45 billion), PowerDrive Systems (~$658 million) and Battery Energy Systems (~$100 million). Split a different way, management separates Foundational products, which touch internal combustion and hybrid powertrains, from eProducts, which touch electric ones. Foundational was ~$2.99 billion of the ~$3.65 billion quarter and eProducts ~$663 million, so roughly four fifths of revenue still rides on engines. Geographically the business is genuinely global rather than American: first-half 2026 sales split ~$2.65 billion Europe, ~$2.29 billion Asia and ~$2.07 billion North America. Customers are vehicle OEMs, which means BorgWarner's volumes are set by other people's production schedules.

Full BWA guide

Magna International is a Canadian company and one of the largest automotive suppliers in the world, serving nearly every major global automaker. Its business is organized into four reporting segments: Body Exteriors & Structures (body, chassis, exterior, and roof systems); Power & Vision (powertrain, electronics, mirrors, lighting, mechatronics, and driver-assistance technology); Seating Systems; and Complete Vehicles, which engineers and assembles entire vehicles for automakers on a contract basis. This breadth means Magna's content can appear across many parts of a car regardless of the brand on the badge.

Full MGA guide

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

• BWA drivers: Margin repair without volume growth; Turbos and drivetrain remain the cash engine.
• MGA drivers: Diversified vehicle content; Margin discipline over volume.

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: Auto suppliers do not control their own volumes, and BorgWarner's revenue is set by OEM build schedules that can be cut with little notice. For MGA, magna's biggest risk is cyclicality.

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 BWA if you believe its drivers more; MGA 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 BWA and MGA guides.

BWA. Headline valuation looks contradictory: a ~35x trailing GAAP price-to-earnings ratio against a ~$14.1 billion market capitalization sits beside guidance that implies roughly a mid-teens multiple on adjusted earnings. Reconciling the two comes down to 2025 charges, including ~$42 million of impairments and ~$32 million of costs to exit the charging business, which depressed the trailing base without reflecting current run-rate profitability. Free cash flow near ~$1.19 billion, or roughly 8% of sales, is arguably the cleaner read on what the business earns.

MGA. These figures are approximate and qualitative, based on recent public reporting, and are not precise or real-time. Auto-supplier results move with production cycles and guidance can change. Always verify current revenue, earnings, dividend, balance-sheet, and guidance details from primary sources before making any decision.

Headline figures (approximate, August 2026): BWA shows revenue (ttm) ~$14.34B, net income (ttm) ~$415M, gaap eps (ttm) ~$2.00, 2026 adjusted eps guidance ~$5.05 to ~$5.30; MGA shows revenue (ttm) Large-scale supplier with tens of billions in annual sales; full-year 2026 guidance was in the low-to-mid $40 billion range, trimmed to reflect softer global production., profitability Profitable with a focus on margin expansion; recent quarters showed earnings growth and beats even as industry volumes declined, per management commentary., balance sheet Established, cash-generative supplier of substantial scale; historically maintains an investment-grade profile. Verify current leverage and liquidity from filings., valuation Typically trades at modest, cyclical-supplier multiples rather than growth-stock levels, reflecting its mature, capital-intensive auto-parts business..

BWA and MGA 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 BWA and MGA exposure against your real portfolio. It is not an investment adviser.