September 21, 2026
Day91 Labs Brief — Issue 009: Fintech
The biggest fintech story of the quarter doesn't appear in any filing. In the filings themselves, companies are pricing more cleverly: take rates, membership tiers and accounting choices are doing work that volume growth used to do.
1. Stripe, Advent and PayPal: a $53B deal that exists only in reporting
Evidence tier C — Reporting only; no primary document exists. The account is sourced to Bloomberg, Axios and CNBC reporting.
Stripe and Advent made a cash offer of $60.50 a share, valuing PayPal at more than $53B, according to people familiar with the deal. On August 28, Bloomberg reported that the consortium had stopped pursuing the deal. According to Axios, the talks kept stalling on why PayPal's share price had risen: Stripe credited its own interest, PayPal credited its turnaround. PayPal shares opened 12% lower after the consortium walked away. PayPal never publicly confirmed any of it.
The offer, the counter, the negotiations and the collapse are all sourced to anonymous people. There is no 8-K anywhere in the chain.
Treat this as tier-3 evidence. It's a live test of our sourcing rule: report that it was reported, and say who reported it.
Sources
2. Adyen: take rate is down, and it bought usage-based billing
Evidence tier A — Primary Adyen H1 2026 release named in the attachment; take rate is our own calculation.
H1 net revenue was €1,302.9M, up 19% (21% in constant currency), on processed volume of €803.8B, up 24%. The EBITDA margin was 49%. After the half closed, Adyen completed the Talon.One and Orb acquisitions, adding loyalty and usage-based billing. These are its first acquisitions in 20 years. Net revenue divided by volume works out to about 16.2 bps, down from about 16.8 bps in H1 2025 (€1,093.5M on €649.0B).
Volume grew faster than revenue. Adyen used its first acquisitions to buy billing infrastructure rather than more payment processing.
A payments processor now owns a usage-based billing engine. If you run usage pricing on a separate tool, expect a bundled offer from your processor.
Sources
3. Klarna: lower volume guidance, higher margin guidance, and an accounting change
Evidence tier A — Primary Klarna Q2 2026 release named in the attachment.
Q2 GMV was $36.6B, up 18%. Revenue grew 27%, and transaction margin dollars grew 42% to $446M. Klarna lowered its GMV outlook but raised its transaction-margin guidance to $1.62–1.65B, about 1.09% of GMV. Stripping out roughly two basis points from an accounting presentation change, the figure is about 1.07%. Certain Fair Financing originations will be measured at fair value, which moves income from being earned over the life of the loan to an upfront gain.
Some of the margin improvement is real, from product mix and the Card. Some of it comes from when revenue is recognized. The company has disclosed how much of each.
Before comparing Klarna's margin with other BNPL providers, use the 1.07% figure, not 1.09%.
Sources
4. Affirm: headline EPS is up about 13 times, and it's mostly a tax item
Evidence tier A — Primary Affirm 10-K named in the attachment.
Fiscal Q4 FY26 (Apr–Jun 2026) revenue was about $1.17B, up 33%, on GMV of $14.1B, up 36%. Releasing the valuation allowance on most US deferred tax assets produced net income of about $1.62B, or $4.62 a share, against consensus near $0.35. Revenue less transaction costs grew 39% to $589M.
The operating business really is compounding. The EPS headline is an accounting event layered on top of it.
Any screen or benchmark using trailing P/E for Affirm is broken for the next four quarters.
Sources
5. Fiserv: Clover's 13% growth is 2% as reported
Evidence tier A — Primary Fiserv 8-K Exhibit 99.1 and Q2 deck named in the attachment.
Q2 adjusted revenue was $4.96B, down 4%. Organic revenue fell 5%, with Financial Solutions down 8%. In May, Fiserv had affirmed 1%–3% organic growth for the year. It has now cut that to −1% to flat. Clover revenue grew 2%, or 13% excluding anticipation and nonrecurring revenue.
The growth story rests on the "excluding" version, and the guidance cut came one quarter after guidance was affirmed.
When a vendor gives you an adjusted growth rate, ask for the reported one too, especially one quarter after a guidance reaffirmation.
Sources
6. PayPal's revenue rose 5%, but transaction margin dollars rose only 1%
Evidence tier A — Primary PayPal 8-K named in the attachment; official SEC company search used because the direct filing URL is not confidently known.
Revenue rose 5% to $8.7B, but transaction margin dollars rose only 1% and the non-GAAP operating margin fell 248 bps to 17.4%. Branded checkout grew 2% while BNPL volume grew 26%.
PayPal's revenue growth exceeded its transaction-margin growth, while BNPL volume grew faster than branded checkout.
When evaluating PayPal, compare revenue growth with transaction-margin growth and separate branded checkout from BNPL volume.
Sources
7. Toast's net take rate reached 98 bps while GPV per location was flat
Evidence tier A — Primary Toast Q2 release named in the attachment; official investor-relations page used instead of an uncertain direct release URL.
Net take rate reached 98 bps, up 5 bps, which Toast attributes partly to targeted pricing moves. GPV per location was flat. Toast is getting more revenue per location without more volume per location.
The supplied figures show higher revenue per location alongside flat volume per location, with targeted pricing cited as part of the explanation.
Track take rate and GPV per location separately when assessing whether location growth is coming from pricing or volume.
Sources
8. Block's Cash App gross profit grew 31% while monthly transacting actives grew 3%
Evidence tier A — Primary Block 10-Q named in the attachment; official SEC company search used because the direct filing URL is not confidently known.
Cash App gross profit grew 31% while monthly transacting actives grew 3%. Consumer lending originations grew 59%. Almost all of the growth is more revenue per user, driven by lending.
Cash App gross profit grew much faster than monthly transacting actives, and the supplied sentence attributes almost all of that growth to more revenue per user driven by lending.
Separate user growth from revenue-per-user growth when evaluating Cash App, and identify how much of the difference is driven by lending.
Sources
9. Chime's new Prime tier requires $3,000 or more a month in direct deposits
Evidence tier A — Primary Chime 8-K named in the attachment; official SEC search used because the direct filing URL and CIK are not confidently known.
The new Prime tier requires $3,000 or more a month in direct deposits. Revenue was $670M, up 27%. Chime also announced a 10% workforce reduction. The tier gates on an engagement threshold rather than a fee.
Chime's Prime eligibility is tied to a monthly direct-deposit threshold, while the same supplied update reports revenue growth and a workforce reduction.
When assessing a tier gated by engagement rather than a fee, track the direct-deposit threshold alongside revenue and workforce changes.
Sources
10. Klarna's distribution increasingly comes through other companies' checkouts
Evidence tier A — Primary Klarna Q1 2026 release named in the attachment; official investor-relations page used instead of an uncertain direct release URL.
Klarna has default PSP placements with Stripe and Nexi, with JPMorgan Payments and Worldpay to follow. Its growth increasingly comes through other companies' checkouts.
The supplied release describes Klarna's distribution as increasingly embedded in other companies' checkouts through PSP placements.
When assessing Klarna's growth, track distribution partnerships and checkout placement alongside Klarna's own channels.
Sources
Every claim links to its source. Spotted something wrong? It will be fixed and logged on the corrections page. Also published on Beehiiv.