Application security provider F5 (NASDAQ:FFIV) reported revenue ahead of Wall Streets expectations in Q4 CY2025, with sales up 7.3% year on year to $822.5 million. On top of that, next quarter’s revenue guidance ($780 million at the midpoint) was surprisingly good and 4.7% above what analysts were expecting. Its non-GAAP profit of $4.45 per share was 21.9% above analysts’ consensus estimates.

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Revenue: $822.5 million vs analyst estimates of $755.7 million (7.3% year-on-year growth, 8.8% beat)

Adjusted EPS: $4.45 vs analyst estimates of $3.65 (21.9% beat)

Adjusted Operating Income: $313.8 million vs analyst estimates of $261.7 million (38.2% margin, 19.9% beat)

Revenue Guidance for Q1 CY2026 is $780 million at the midpoint, above analyst estimates of $745.2 million

Management raised its full-year Adjusted EPS guidance to $15.85 at the midpoint, a 5.7% increase

Operating Margin: 26%, in line with the same quarter last year

Free Cash Flow Margin: 18.2%, down from 23.7% in the previous quarter

Billings: $884.9 million at quarter end, down 3.3% year on year

Market Capitalization: $15.19 billion

Originally named after the F5 tornado, the most powerful on the meteorological scale, F5 (NASDAQ:FFIV) provides security and delivery solutions that protect applications across cloud, data center, and edge environments for large organizations.

Examining a company’s long-term performance can provide clues about its quality. Any business can put up a good quarter or two, but the best consistently grow over the long haul. Over the last five years, F5 grew its sales at a weak 5.4% compounded annual growth rate. This was below our standard for the software sector and is a rough starting point for our analysis.

We at StockStory place the most emphasis on long-term growth, but within software, a half-decade historical view may miss recent innovations or disruptive industry trends. F5’s annualized revenue growth of 5.9% over the last two years aligns with its five-year trend, suggesting its demand was consistently weak.

This quarter, F5 reported year-on-year revenue growth of 7.3%, and its $822.5 million of revenue exceeded Wall Street’s estimates by 8.8%. Company management is currently guiding for a 6.7% year-on-year increase in sales next quarter.

Looking further ahead, sell-side analysts expect revenue to remain flat over the next 12 months, a deceleration versus the last two years. This projection is underwhelming and implies its products and services will see some demand headwinds.

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Billings is a non-GAAP metric that is often called “cash revenue” because it shows how much money the company has collected from customers in a certain period. This is different from revenue, which must be recognized in pieces over the length of a contract.

F5’s billings came in at $884.9 million in Q4, and over the last four quarters, its growth was underwhelming as it averaged 9.5% year-on-year increases. This performance mirrored its total sales and suggests that increasing competition is causing challenges in acquiring/retaining customers.

The customer acquisition cost (CAC) payback period measures the months a company needs to recoup the money spent on acquiring a new customer. This metric helps assess how quickly a business can break even on its sales and marketing investments.

F5 is extremely efficient at acquiring new customers, and its CAC payback period checked in at 21.5 months this quarter. The company’s rapid recovery of its customer acquisition costs means it can attempt to spur growth by increasing its sales and marketing investments.

We were impressed by how significantly F5 blew past analysts’ billings expectations this quarter. We were also glad its full-year EPS guidance trumped Wall Street’s estimates. Zooming out, we think this quarter featured some important positives. The stock traded up 13.3% to $306.17 immediately after reporting.

F5 may have had a good quarter, but does that mean you should invest right now? We think that the latest quarter is just one piece of the longer-term business quality puzzle. Quality, when combined with valuation, can help determine if the stock is a buy. We cover that in our actionable full research report which you can read here, it’s free.