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Fortinet

FTNT
82
Software - Infrastructure · Technology
Also trades as: 0IR9.L
Exchange
NASDAQ
Winston Score
82
Winston is happy
A high-quality business with solid fundamentals.
Data as of Aug 23, 2026 · filings through Jun 30, 2026
How the score breaks down
Quality
Exceptional
Growth
Strong
Cash Flow
Exceptional
Stability
Exceptional
Valuation
Good

Winston Score History

The full picture

Fortinet makes cybersecurity products that protect computer networks from hackers and online threats. Its flagship product is the FortiGate firewall, which monitors and filters internet traffic for businesses, governments, schools, and hospitals. Fortinet is one of the largest network security companies in the world and sells a broad suite of tools — including firewalls, antivirus software, and cloud security — all under its unified "Security Fabric" platform.

Fortinet earns money two ways: selling hardware appliances like physical firewall boxes, and charging recurring fees for software subscriptions and support services. It operates globally, with customers in over 180 countries, and generates roughly $6 billion in annual revenue. Its main competitive advantage is that its security chips are custom-built in-house, making its products faster and cheaper to run than many rivals. The key growth driver is the ongoing shift of customers from hardware to higher-margin cloud and subscription services, though slowing enterprise IT spending remains a near-term risk.

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Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+25.6% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+45.6% YoY

YoY Growth Rate

EPS growth accelerating

Insider Activity

15.6%ownership

Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

$4.5B cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Revenue accelerating

Fortinet grew revenue 26% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Profit per sale
Gross Margin
80.2%
Premium pricing power — 80.2% gross margin
Profit after running costs
Operating Margin
33.7%
Excellent — 33.7% operating margin
Return on the money invested
ROCE
119.2%
Exceptional — 119.2% return on capital

ROIC above 25%. Every dollar invested in the business earns more than 25 cents back per year.

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Growth

Sales growth
Sales YoY
+18.8%
Fast-growing sales (+18.8% YoY)
Profit growth
EPS YoY
+13.0%
Earnings growing (+13.0% YoY)

Healthy double-digit earnings growth — what compounders look like.

How steady the profit is
EPS Consistency
6/8 quarters
Earnings grew in most of the last 8 quarters

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Cash Flow

Profit that turns into cash
Cash Conversion
160%
Turns 160% of profit into real cash
Spare cash per sale
FCF Margin
41.4%
Converts sales into free cash efficiently (41.4%)

Free cash flow margin above 20%. Out of every $100 in sales, more than $20 is real cash they keep.

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Stability

What it owes vs what it owns
Debt / Equity
0.32
Conservative — low debt load (0.32)
Covers its interest
Interest Cover
135.60x
Comfortably covers interest (135.6x)

Interest coverage above 8. Profits cover interest many times over.

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Valuation

Price vs profit
P/E Ratio (TTM)
53.7x
no trend
Expensive — P/E 53.7

P/E over 35. The market is pricing in heavy, sustained growth.

Cheaper or dearer next year
P/E vs Forward
+14.9
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (53.7 → 38.8)

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Dividends

Not applicable for this business.
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