CDLX vs MA: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of October 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. CDLX and MA 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 CDLX and MA 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.

Cardlytics, Inc. operates what it calls a purchase intelligence platform: an advertising network that runs inside the online and mobile banking channels of its financial institution (FI) partners. Banks share anonymized transaction data with Cardlytics, which uses it to target offers (for example, 10% back at a restaurant chain) to the bank's own customers. Most campaigns are priced on a Cost per Served Sale basis, a percentage of all purchases made by consumers who were shown the offer. Revenue is reported net of the cash-back paid to consumers and gross of the Partner Share paid to banks, which is why the company also reports billings, the gross amount charged to marketers. Named FI partners include Chase, Wells Fargo and American Express, plus regional banks, fintechs and digital banks.

Full CDLX guide

Mastercard operates one of the world's largest payment networks, connecting banks, merchants, and cardholders to process electronic transactions across more than 200 countries. Crucially, Mastercard is not a lender and does not issue cards or take on credit risk: banks issue Mastercard-branded cards and extend the credit, while Mastercard runs the network rails that authorize, clear, and settle transactions. It makes money primarily by charging fees based on the dollar value and number of transactions that flow over its network (gross dollar volume and switched transactions), earning a small take rate on enormous payment volumes. Beyond core card switching, Mastercard has built a large and fast-growing value-added services business: cybersecurity and fraud prevention, data analytics, consulting, loyalty, identity, and open-banking and real-time-payment capabilities. The model is asset-light, extremely high-margin, and benefits from a powerful network effect, the more cardholders and merchants on the network, the more valuable it becomes. Demand grows with the secular shift from cash to digital payments worldwide and rising consumer spending. Headquartered in Purchase, New York, Mastercard forms a global duopoly with Visa.

Full MA guide

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

• CDLX drivers: Stabilizing billings after the bank partner loss; Margin per dollar of revenue.
• MA drivers: Secular shift from cash to digital; Network effect and high-margin model.

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: The central risk is the capital structure: at roughly $12 million of market value, the equity is small next to $172.5 million of convertible notes due April 2029 and a $15.0 million credit line, and stockholders' equity was already a $16.0 million deficit at June 30, 2026, so a refinancing or exchange could heavily dilute or largely wipe out existing shareholders. For MA, mastercard faces ongoing regulatory and legal scrutiny over interchange and network fees, with regulators in the US, Europe, and elsewhere periodically pushing for fee caps or greater competition, which could pressure its take rate.

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 CDLX if you believe its drivers more; MA 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 CDLX and MA guides.

CDLX. Trailing revenue of ~$169 million against a market value of roughly $12 million (about 5.8 million shares near $2) puts the stock at well under 0.1x sales, a level that reflects the debt more than the size of the business. Adding the convertible notes and credit line and subtracting cash gives an enterprise value near ~$160 million, about 1x revenue. Billings run ~$297 million over twelve months; revenue is lower because cash-back paid to consumers is netted out. Adjusted EBITDA is near break-even while free cash flow is negative, and Q3 2026 guidance calls for $34 million to $39 million of revenue.

MA. Mastercard trades at a premium growth multiple, well above the broad market, reflecting its exceptional margins, asset-light model, durable network-effect moat, and consistent double-digit earnings growth. The valuation embeds expectations of continued cash-to-digital conversion, value-added-services growth, and new payment flows. As one half of a global payments duopoly with Visa, the premium has been durable, though it leaves the stock sensitive to regulatory action and any deceleration in spending.

Headline figures (approximate, October 2026): CDLX shows revenue (ttm, continuing ops) ~$169M, billings (ttm) ~$297M, q2 2026 revenue $36.9M (-36% YoY), adjusted ebitda (h1 2026) ~$1.9M; MA shows revenue (ttm) ~$30 billion, operating margin ~57% (exceptionally high, asset-light network), net income (ttm) ~$14-15 billion, p/e (ttm) ~35x.

CDLX and MA 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 CDLX and MA exposure against your real portfolio. It is not an investment adviser.