
F5 (FFIV)
We’re wary of F5. Its sluggish sales growth shows demand is soft, a worrisome sign for investors in high-quality stocks.― StockStory Analyst Team
1. News
2. Summary
Why F5 Is Not Exciting
Initially started as a hardware appliances company in the late 1990s, F5 (NASDAQ:FFIV) makes software that helps large enterprises ensure their web applications are always available by distributing network traffic and protecting them from cyberattacks.
- Annual revenue growth of 3.5% over the last three years was well below our standards for the software sector
- Challenges in acquiring and retaining long-term customers were reflected in its average ARR declines of 8.3% over the last year
- The good news is that its successful business model is illustrated by its impressive operating margin, and its profits increased over the last year as it scaled
F5 doesn’t pass our quality test. We’re hunting for superior stocks elsewhere.
Why There Are Better Opportunities Than F5
High Quality
Investable
Underperform
Why There Are Better Opportunities Than F5
F5’s stock price of $285.88 implies a valuation ratio of 5.5x forward price-to-sales. This multiple is lower than most software companies, but for good reason.
Our advice is to pay up for elite businesses whose advantages are tailwinds to earnings growth. Don’t get sucked into lower-quality businesses just because they seem like bargains. These mediocre businesses often never achieve a higher multiple as hoped, a phenomenon known as a “value trap”.
3. F5 (FFIV) Research Report: Q1 CY2025 Update
Network application delivery and security specialist F5 (NASDAQ:FFIV) beat Wall Street’s revenue expectations in Q1 CY2025, with sales up 7.3% year on year to $731.1 million. Guidance for next quarter’s revenue was better than expected at $750 million at the midpoint, 1.6% above analysts’ estimates. Its non-GAAP profit of $3.42 per share was 10.1% above analysts’ consensus estimates.
F5 (FFIV) Q1 CY2025 Highlights:
- Revenue: $731.1 million vs analyst estimates of $719.1 million (7.3% year-on-year growth, 1.7% beat)
- Adjusted EPS: $3.42 vs analyst estimates of $3.11 (10.1% beat)
- Adjusted Operating Income: $233.4 million vs analyst estimates of $227.6 million (31.9% margin, 2.5% beat)
- Revenue Guidance for Q2 CY2025 is $750 million at the midpoint, above analyst estimates of $737.9 million
- Adjusted EPS guidance for Q2 CY2025 is $3.47 at the midpoint, below analyst estimates of $3.56
- Operating Margin: 21.7%, up from 20.5% in the same quarter last year
- Free Cash Flow Margin: 33.7%, up from 25.4% in the previous quarter
- Billings: $707.5 million at quarter end, up 6.7% year on year
- Market Capitalization: $15.57 billion
Company Overview
Initially started as a hardware appliances company in the late 1990s, F5 (NASDAQ:FFIV) makes software that helps large enterprises ensure their web applications are always available by distributing network traffic and protecting them from cyberattacks.
Large organizations are often running multiple online applications with complex connections across geographical locations, on-premise servers, and cloud environments. Even though these companies theoretically do have enough computing power, their servers still can get overwhelmed when there is a lot of concentrated demand in one location, resulting in internal apps being slow (hindering employee productivity) and customers not being able to shop online or consume the content they want.
F5 provides technology that filters and distributes internet traffic across a company’s servers to improve page load speed and website availability while preventing cyber-attacks. To ensure users have an uninterrupted experience when visiting web applications, F5 uses load-balancing technology to spread the demand across multiple servers and send traffic to the best-performing web server. Instead of using a content delivery network such as Cloudflare or Akamai to store temporary copies of web pages, F5 allows companies to use servers under their own control, whether in the cloud or on-premises, which can be important for compliance, privacy, or other reasons.
Using AI-based technology, the company is also able to inspect web traffic to detect suspicious activities and malicious users who try to steal sensitive information or overwhelm a web server with fake traffic. It also provides the features to automate the management of applications so that engineers can focus on more important tasks.
4. Content Delivery
The amount of content on the internet is exploding, whether it is music, movies and or e-commerce stores. Consumer demand for this content creates network congestion, much like a digital traffic jam which drives demand for specialized content delivery networks (CDN) services that alleviate potential network bottlenecks.
F5 faces competition from providers of application management and web security solutions such as Citrix (NASDAQ:CTXS) , Cisco (NASDAQ:CSCO), and Akamai (NASDAQ:AKAM) as well as cloud vendors such as Amazon (NASDAQ:AMZN), Microsoft (NASDAQ:MSFT), and Google Cloud.
5. Sales Growth
A company’s long-term sales performance can indicate its overall quality. Any business can have short-term success, but a top-tier one grows for years. Unfortunately, F5’s 3.5% annualized revenue growth over the last three years was weak. This was below our standard for the software sector and is a rough starting point for our analysis.

This quarter, F5 reported year-on-year revenue growth of 7.3%, and its $731.1 million of revenue exceeded Wall Street’s estimates by 1.7%. Company management is currently guiding for a 7.8% year-on-year increase in sales next quarter.
Looking further ahead, sell-side analysts expect revenue to grow 3.4% over the next 12 months, similar to its three-year rate. This projection doesn't excite us and implies its newer products and services will not lead to better top-line performance yet.
6. Billings
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 $707.5 million in Q1, and over the last four quarters, its growth was underwhelming as it averaged 8.7% year-on-year increases. However, this alternate topline metric grew faster than total sales, meaning the company collects cash upfront and then recognizes the revenue over the length of its contracts - a boost for its liquidity and future revenue prospects.
7. Customer Acquisition Efficiency
The customer acquisition cost (CAC) payback period represents the months required to recover the cost of acquiring a new customer. Essentially, it’s the break-even point for sales and marketing investments. A shorter CAC payback period is ideal, as it implies better returns on investment and business scalability.
F5 is very efficient at acquiring new customers, and its CAC payback period checked in at 22.3 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.
8. Gross Margin & Pricing Power
For software companies like F5, gross profit tells us how much money remains after paying for the base cost of products and services (typically servers, licenses, and certain personnel). These costs are usually low as a percentage of revenue, explaining why software is more lucrative than other sectors.
F5’s robust unit economics are better than the broader software industry, an output of its asset-lite business model and pricing power. They also enable the company to fund large investments in new products and sales during periods of rapid growth to achieve higher profits in the future. As you can see below, it averaged an excellent 80.9% gross margin over the last year. That means F5 only paid its providers $19.10 for every $100 in revenue.
In Q1, F5 produced a 80.7% gross profit margin, marking a 1.4 percentage point increase from 79.3% in the same quarter last year. F5’s full-year margin has also been trending up over the past 12 months, increasing by 1 percentage points. If this move continues, it could suggest better unit economics due to more leverage from its growing sales on the fixed portion of its cost of goods sold (such as servers).
9. Operating Margin
F5 has been a well-oiled machine over the last year. It demonstrated elite profitability for a software business, boasting an average operating margin of 24.4%. This result isn’t surprising as its high gross margin gives it a favorable starting point.
Looking at the trend in its profitability, F5’s operating margin rose by 3.6 percentage points over the last year, as its sales growth gave it operating leverage.

This quarter, F5 generated an operating profit margin of 21.7%, up 1.2 percentage points year on year. Since its gross margin expanded more than its operating margin, we can infer that leverage on its cost of sales was the primary driver behind the recently higher efficiency.
10. Cash Is King
If you’ve followed StockStory for a while, you know we emphasize free cash flow. Why, you ask? We believe that in the end, cash is king, and you can’t use accounting profits to pay the bills.
F5 has shown terrific cash profitability, driven by its lucrative business model and cost-effective customer acquisition strategy that enable it to stay ahead of the competition through investments in new products rather than sales and marketing. The company’s free cash flow margin was among the best in the software sector, averaging 28.4% over the last year.

F5’s free cash flow clocked in at $246.1 million in Q1, equivalent to a 33.7% margin. This result was good as its margin was 2.5 percentage points higher than in the same quarter last year, but we wouldn’t read too much into the short term because investment needs can be seasonal, leading to temporary swings. Long-term trends carry greater meaning.
Over the next year, analysts’ consensus estimates show they’re expecting F5’s free cash flow margin of 28.4% for the last 12 months to remain the same.
11. Balance Sheet Assessment
Companies with more cash than debt have lower bankruptcy risk.

F5 is a profitable, well-capitalized company with $1.26 billion of cash and $236.6 million of debt on its balance sheet. This $1.02 billion net cash position is 6.7% of its market cap and gives it the freedom to borrow money, return capital to shareholders, or invest in growth initiatives. Leverage is not an issue here.
12. Key Takeaways from F5’s Q1 Results
We enjoyed seeing F5 beat analysts’ billings, revenue, adjusted operating income, and EPS expectations this quarter. We were also glad its revenue guidance for next quarter exceeded Wall Street’s estimates. On the other hand, its quarterly EPS guidance missed. Zooming out, we think this was a decent quarter featuring some areas of strength. The stock traded up 1.6% to $269.29 immediately following the results.
13. Is Now The Time To Buy F5?
Updated: May 21, 2025 at 10:14 PM EDT
We think that the latest earnings result is only one piece of the bigger puzzle. If you’re deciding whether to own F5, you should also grasp the company’s longer-term business quality and valuation.
F5 isn’t a terrible business, but it isn’t one of our picks. First off, its revenue growth was weak over the last three years, and analysts don’t see anything changing over the next 12 months. And while F5’s impressive operating margins show it has a highly efficient business model, its ARR has disappointed and shows the company is having difficulty retaining customers and their spending.
F5’s price-to-sales ratio based on the next 12 months is 5.5x. Beauty is in the eye of the beholder, but our analysis shows the upside isn’t great compared to the potential downside. We're pretty confident there are more exciting stocks to buy at the moment.
Wall Street analysts have a consensus one-year price target of $289.84 on the company (compared to the current share price of $285.88).
Want to invest in a High Quality big tech company? We’d point you in the direction of Microsoft and Google, which have durable competitive moats and strong fundamentals, factors that are large determinants of long-term market outperformance.
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