ACI vs PAY: 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: ACI 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. ACI and PAY 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 ACI and PAY 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.

Albertsons Companies is a leading US food and drug retailer, running roughly 2,200 supermarkets across the country under about two dozen well-known regional banners, including Albertsons, Safeway, Vons, Jewel-Osco, Shaw's, Acme, and Tom Thumb, along with in-store pharmacies and fuel centers. Its scale makes it one of the largest grocers in the nation, and its business is defensive: food and pharmacy demand is relatively steady through economic cycles. The trade-off is that grocery is a notoriously low-margin, high-competition industry, so Albertsons competes on price, convenience, private label, and loyalty rather than on rapid growth.

Full ACI guide

Paymentus Holdings runs a cloud-native platform that lets billers (utilities, government agencies, insurers, telecoms, and financial institutions) accept and manage electronic bill payments across many channels, including web, mobile app, IVR phone, chat, SMS, and walk-in, all synchronized in real time. Its differentiator is a single-codebase platform and its Instant Payment Network (IPN), which links roughly 2,500-plus billers to high-traffic consumer endpoints such as PayPal, Amazon, and Walmart. Revenue comes from a mix of per-transaction fees, hosted subscription portals, and premium add-ons, producing recurring, sticky enterprise relationships with high retention.

Full PAY guide

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

• ACI drivers: Defensive, steady grocery demand; Digital, loyalty, and retail media.
• PAY drivers: Structural shift to digital bill pay; Transaction volume and network effects.

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 thin margins and intense competition: Albertsons operates against Walmart, Costco, Kroger, Amazon, and hard discounters like Aldi, which pressure prices and limit profitability in an already low-margin industry. For PAY, valuation is the primary risk: the shares trade at a premium multiple, so any deceleration in revenue growth or a guidance miss could compress the stock sharply.

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 ACI if you believe its drivers more; PAY 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 ACI and PAY guides.

ACI. These figures are approximate and tied to the asOf date; verify live numbers before acting. Albertsons is valued as a defensive, low-growth grocer, so it typically trades at a modest earnings multiple relative to the broader market, with the dividend and buyback central to total return. The key questions are whether digital, pharmacy, and retail media can lift margins and how well it competes with larger discounters.

PAY. Paymentus grew fiscal 2025 revenue about 37% to roughly $1.2 billion and stayed profitable, then raised full-year 2026 guidance to about $1.425 billion to $1.440 billion after a record first quarter. At roughly $3 billion of market value against about $74 million of trailing net income, the trailing earnings multiple is high, reflecting expectations that rapid growth and margin expansion continue.

Headline figures (approximate, Jul 2026): ACI shows revenue scale One of the largest US grocers, with tens of billions in annual sales across ~2,200 stores, earnings Fiscal 2025 adjusted EPS around $2.18 and adjusted EBITDA near $3.9 billion, margin profile Thin grocery margins, with digital, pharmacy, and retail media the main levers to improve profitability, digital and loyalty Digital sales up about 21% in fiscal 2025; loyalty membership grew past 50 million; PAY shows revenue (ttm) ~$1.28B, revenue growth (yoy) ~30%, net income (ttm) ~$74M, adjusted ebitda (2026e) ~$165M to $172M.

ACI and PAY 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 ACI and PAY exposure against your real portfolio. It is not an investment adviser.