Marqeta is a modern card-issuing platform that has finally printed consecutive GAAP profits, yet the market is already looking through that print to a second-half slowdown tied to its largest customer. Block still supplies a large share of net revenue, and Cash App has started sending new card issuance elsewhere. That is the investment debate in one sentence. The rest of the book, expense-management programs, lending volume, and a newly assembled European stack, has to replace the Cash App growth engine before take-rate compression, the fee earned on each dollar of volume, turns a newly profitable processor into a shrinking one.
The second-quarter print showed the tension in the unit economics. Total processing volume, the dollar amount of payments that run through the platform after returns and chargebacks, rose 32%. Net revenue grew 17%. That gap is not an accounting quirk. Large customers are rolling into cheaper pricing tiers, mix is shifting toward processing-only work, and Block is diversifying issuance the way every scaled program eventually does. Block still supplied 41% of net revenue. Adjusted earnings before interest, taxes, depreciation, and amortization still expanded because operating costs barely grew. Profitability is real. The question is whether it survives the volume already leaving.
Management guided third-quarter net-revenue growth into the mid-single digits and lifted full-year adjusted-earnings growth into the low thirties. The board also authorized a fresh Class A repurchase program after spending heavily in the first half. Shares sit near the bottom of the past year's range, with a market value only modestly above a large net-cash pile. The open question is whether the non-Block franchise re-accelerates once the Cash App issuance fade is fully in the numbers.