The Filing Desk

Fiserv vs Block

Fiserv FISV · Block XYZ · Transaction & Payment Processing Services

Block reported revenue of $24.2 billion in fiscal 2025, about the same as Fiserv's $21.2 billion in fiscal 2025. Fiserv's revenue grew 3.6% in its latest year, and Block's grew 0.3%. Fiserv had an operating margin of 27.4%, against 7.1% at Block. Free cash flow was $4.3 billion at Fiserv and $2.4 billion at Block.

Side by side

FiservBlock
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$21.2B$24.2B
Revenue growth3.6%0.3%
Revenue growth a year, last 5 years7.4%20.6%
Gross margin—42.8%
Operating margin27.4%7.1%
Net margin16.4%5.4%
Free cash flow$4.3B$2.4B
Free cash flow margin20.3%10.0%
Return on capital8.9%6.4%
Net debt to EBITDA3.2x0.1x
Dividends and buybacks$0M$2.3B
Change in diluted share count−5.7%−2.1%
Last close$48.33$74.55
P/E at the last close9.3×133.1×
Insider trades, last 12 monthsbought $4.5 million, sold $0sold $90.9 million
Piotroski F-score6 of 85 of 9
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
FiservBlock
Operating margin
Percent of revenue
FiservBlock
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
FiservBlock

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Fiserv and Block pages.