The Street's frame on Block has been stuck in one gear since the 2022 drawdown: 'Cash App user growth is slowing, therefore the thesis is broken.' That frame ignores what happened to monetisation in the meantime. Monthly transacting actives are still around 57 million, yet revenue per user has compounded through product depth: direct deposit, savings, borrow, Cash App Card, and the Afterpay cross-sell.
There is a version of this story we have heard before. It was PayPal in 2015, shortly after the eBay spin, when user growth decelerated and the market declared the narrative dead. PayPal's FCF inflected through monetisation, not adds. The stock re-rated from 18x to 30x earnings over the following three years. Block's setup is not identical, but the monetisation dynamic is the same pattern.
Look at gross profit. In 2021 Block generated $4.3 billion of gross profit. In 2025 that number is $10.4 billion. A 140% expansion over four years. The market is valuing that gross profit stream at 4x, which is what you pay for a low-growth enterprise software company with no optionality. Block has at least three optionality vectors the market is not pricing: Cash App banking charter economics, Afterpay merchant expansion, and Bitkey.
The capex number is, frankly, rounding error. Block spent $155 million on capex in 2025 against $2.58 billion of operating cash flow. That is what a capital-light monetisation machine looks like when it turns the corner.