ALLY vs GM: 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. ALLY and GM 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 ALLY and GM 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.

Ally Financial is the former GMAC financing arm that has reinvented itself as a purely digital consumer bank. Its core is auto finance (originating and servicing loans and leases across new and used vehicles through thousands of dealer relationships), funded largely by a branchless online bank that gathers retail deposits at lower operating cost than traditional branch networks. Ally also runs adjacent businesses in insurance, corporate finance, credit cards, and a self-directed brokerage (Ally Invest), giving it a diversified but still lending-heavy earnings mix.

Full ALLY guide

General Motors Company is a Detroit-based global automaker that designs, manufactures, and sells trucks, crossovers, cars, and automobile parts under the Chevrolet, GMC, Buick, and Cadillac brands, and provides automotive financing through its GM Financial arm. The overwhelming majority of its profit comes from North America, where full-size pickup trucks (the Chevrolet Silverado and GMC Sierra) and a broad lineup of crossovers and SUVs command strong pricing and margins. GM also operates through equity joint ventures in China, holds a portfolio of electric vehicles built on its Ultium battery platform, and had been developing autonomous-driving technology through Cruise before folding that effort into a leaner in-house driver-assistance program.

Full GM guide

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

• ALLY drivers: Net interest margin expansion; Auto origination volume and quality.
• GM drivers: Truck and SUV profit engine plus capital return; EV rightsizing to cut losses.

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: Ally is a leveraged consumer lender, so a US recession or rising unemployment would push auto charge-offs and delinquencies higher and force larger loan-loss reserves, directly cutting earnings. For GM, gM is deeply cyclical: new-vehicle demand, pricing, and margins can fall sharply in a recession or when interest rates raise the cost of auto loans.

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 ALLY if you believe its drivers more; GM 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 ALLY and GM guides.

ALLY. Ally trades at a low-to-mid single-digit forward earnings multiple and near or below its stated book value (roughly $51 per share), a valuation typical of a cyclical lender rather than a growth fintech. The discount reflects auto-credit risk and rate sensitivity, while the bull case rests on margin expansion and normalizing charge-offs lifting earnings. The dividend adds a mid-single-digit total-return cushion if credit stays contained.

GM. GM's trailing P/E of roughly 31x is misleading because 2025 GAAP net income of about $2.7 billion was suppressed by more than $7.2 billion of one-time EV realignment charges; on a forward basis against 2026 adjusted EPS guidance of about $11.50 to $13.50, the multiple compresses to roughly 6x, one of the lowest among large-cap US companies. That gap reflects a market that treats GM as a deeply cyclical, tariff-exposed automaker rather than a growth compounder. Heavy buybacks (a new $6.0 billion authorization) and a raised dividend show management returning capital while the shares trade at a low earnings multiple.

Headline figures (approximate, JULY 2026): ALLY shows q1 2026 net revenue ~$2.1B, q1 2026 net income (common) ~$291M, q1 2026 eps ~$0.94, net interest margin (q1 2026) ~3.48%; GM shows revenue (fy 2025) ~$185 billion, net income (fy 2025) ~$2.7 billion (after ~$7.2 billion of special charges), ebit-adjusted (fy 2025) ~$12.7 billion, 2026 ebit-adjusted guidance ~$13.5 billion to $15.5 billion (~$11.50 to $13.50 adjusted EPS).

ALLY and GM 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 ALLY and GM exposure against your real portfolio. It is not an investment adviser.