Flex owns underwriting and spread

This is the difference between being a fintech front end and being a real lender. Flex is not just passing borrowers to a bank and taking a software fee. It raises warehouse debt, advances Net-60 card float from its own facilities, prices risk with its own model, and keeps the spread between its funding cost and what customers pay, which makes underwriting accuracy a core product advantage, not a back office function.

• Flex monetizes the credit product directly. Its economics come from interchange on card spend, interest on Net-60 balances at 26.9% APR, and FX fees, so more accurate underwriting can lift both approval rates and margin on every dollar of spend and receivables financed.
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• That is a different model from Ramp, which has stayed focused on the application layer and partners for issuing and banking infrastructure. Ramp wins by shipping software faster. Flex wins by turning card and cash flow data into better credit decisions for underserved owner operators.
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• Kapital is the closest comparable. In LatAm, its lending products became a major revenue driver and payment volume engine, showing how owning the credit book can turn a business account and card product into a higher margin financial operating system instead of a mostly interchange business.
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Going forward, the winners in vertical B2B fintech will split into two camps. Software led players will optimize speed and workflow, while balance sheet led players like Flex will compound advantage through better risk models fed by transaction data. If Flex keeps loss rates in line, its credit spread can become the engine that funds broader product expansion.