When searching for companies built to last, quality investing offers a framework that prioritises durable competitive advantages, consistent profitability, and strong management discipline over short-term market fluctuations. The Caviar Cruise stock screener, inspired by the principles in Luc Kroeze’s book The Caviar Formula, is designed specifically to surface such candidates. This method focuses on companies that not only grow their revenues and profits but do so while generating high returns on invested capital, maintaining manageable debt levels, and converting a significant portion of profits into hard cash. It is a stringent filter that seeks businesses with the hallmarks of long-term compounding machines.

One company that emerges from this screen is FORTINET INC (NASDAQ:FTNT), a global cybersecurity provider whose integrated platform spans secure networking, unified SASE, and AI-driven security operations. Below, we examine why Fortinet’s fundamentals align so well with the Caviar Cruise requirements.

Core Criteria & Why Fortinet Qualifies

The Caviar Cruise screen is built around several non-negotiable filters that separate genuine quality from mere market noise. Fortinet meets each of these with room to spare.

Revenue Growth (5Y CAGR > 5%) and EBIT Growth (5Y CAGR > 5%) Quality investing demands a company that has demonstrated sustained top-line expansion, but just as importantly, earnings must outpace revenue to signal improving operational efficiency. Fortinet’s revenue has grown at a compound annual rate of 12.0% over the past five years, well above the screen’s 5% threshold. More impressively, its EBIT growth over the same period stands at 33.4% annually. This spread—where EBIT growth far exceeds revenue growth—is exactly what the Caviar Cruise filter looks for, as it indicates the company is benefiting from economies of scale and pricing power.

ROIC (Excluding Cash, Goodwill & Intangibles) > 15% Return on invested capital is arguably the most critical metric for quality investors because it reveals how effectively a company allocates its capital. Fortinet’s ROIC, when calculated on core invested capital (excluding cash, goodwill, and intangibles), comes in at a remarkable 113.6%—far above the 15% minimum. This suggests that every dollar reinvested into the business generates a very high return, a sign of a strong competitive moat and efficient operations.

Debt / Free Cash Flow < 5 A quality company should not be drowning in debt, and the ability to service obligations with free cash flow is key. Fortinet carries a Debt-to-Free Cash Flow ratio of just 0.20. This means it could theoretically repay all its outstanding debt in under three months using its current free cash flow, placing it in a position of exceptional financial strength.

Profit Quality (5-Year Average FCF / Net Income > 75%) This filter measures how much of the net profit is actually converted into free cash flow—a test of earnings integrity. Fortinet scores an average profit quality of 149.2% over the last five years, meaning it generates more free cash flow than its reported net income. This is a standout figure; it often results from low capital intensity and conservative accounting. High profit quality reassures long-term investors that earnings are not just paper numbers but are backed by real cash.

Analyst Views & Broader Fundamental Picture

The fundamental analysis report on Fortinet (available in full here) paints a picture of a company firing on all cylinders. The report grants Fortinet an overall fundamental rating of 7 out of 10, with particularly strong scores in profitability (9/10) and health (8/10). Profitability metrics are among the best in the Software industry:

• Return on Equity: 197.5% (outperforms 98.9% of industry peers)
• Return on Assets: 19.8% (outperforms 95.3% of peers)
• Operating Margin: 31.0% (outperforms 94.2% of peers)

The health segment is equally robust. An Altman-Z score of 9.15 (vs. an industry average far below that) indicates an extremely low risk of financial distress. The company has also been reducing its share count over the past one and five years, which benefits per-share metrics.

The main area where Fortinet scores lower is valuation (2/10). With a trailing P/E ratio of 51.9 and a forward P/E of 44.6, the stock is priced at a premium compared to the broader market (S&P 500 forward P/E of ~21.5). However, quality investors often accept a premium for proven businesses with strong growth trajectories. Future revenue is expected to grow at 12.0% per year, and EPS at around 8.1%, providing some compensation for the elevated multiple.

Call to Action

The Caviar Cruise screen is designed to narrow the vast universe of stocks down to only those with the strongest quality characteristics. Fortinet is just one example of the kind of business this method can uncover. To explore the full list of current candidates and build your own quality-focused watchlist, run the screen yourself using the link below:

View the complete Caviar Cruise stock screener results here

Final Thoughts

Fortinet’s fundamentals align tightly with the Caviar Cruise methodology: strong and accelerating EBIT growth, sky-high returns on capital, minimal debt relative to cash flow, and excellent profit quality. While its valuation is steep, the company’s competitive position in the cybersecurity sector and its consistent execution make it a textbook candidate for long-term, quality-oriented portfolios. As always, this analysis is for informational purposes only and does not constitute investment advice.

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