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F5

FFIV
69
Software - Infrastructure · Technology
Price
$384.63
+6.84 (+1.81%)
Market Cap
$21.70B
Exchange
NASDAQ
Winston Score
69
Winston is curious
A decent business — some strong pillars, some weaker.
Data as of Aug 23, 2026 · filings through Jun 30, 2026
How the score breaks down
Quality
Exceptional
Growth
Strong
Cash Flow
Exceptional
Stability
Good
Valuation
Good

Share count falling — buybacks

5.4% over 4y

The company has reduced its share count over this period, returning value to shareholders through buybacks.

Diluted shares outstanding: 62.1M (2021) → 58.7M (2025)

Winston Score History

The full picture

F5, Inc. makes software and hardware that helps companies manage and secure the traffic flowing in and out of their applications. Its main products include application delivery controllers, load balancers, and security tools that protect apps from cyberattacks. Large banks, government agencies, telecom companies, and cloud providers are its biggest customers.

F5 earns money through a mix of software subscriptions, hardware sales, and ongoing support contracts. The company operates globally, with significant revenue from North America, Europe, and Asia-Pacific, and generates around $2.8 billion in annual revenue. Its moat comes from deep integration into customers' existing IT infrastructure, which makes switching to a competitor costly and disruptive. The key growth driver is F5's ongoing shift toward software and subscription-based revenue, which now makes up a growing share of sales — but the company faces risk if large cloud providers like AWS or Microsoft continue building more of these networking and security capabilities directly into their own platforms.

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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

+10.9% YoY

YoY Growth Rate

Steady revenue growth

EPS Growth

+11.6% YoY

YoY Growth Rate

Steady EPS growth

R&D Spend

$540M/ year

Rising (+10% vs prior year)

17.5% of revenue

In line with sector average (15%)

Investing heavily in future products and technology

Insider Activity

0.6%ownership

Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

$1.6B cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

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

Heavy R&D investment

F5 is putting 17% of revenue into R&D and that number is rising. And they're generating enough cash to self-fund it.

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.

Each metric is explained in plain language so you know exactly what you're looking at. Start your free trial now.

Quality

Profit per sale
Gross Margin
82.2%
Premium pricing power — 82.2% gross margin
Profit after running costs
Operating Margin
24.7%
Excellent — 24.7% operating margin
Return on the money invested
ROCE
21.1%
Exceptional — 21.1% return on capital

ROIC between 15% and 25%. Every dollar invested in the business earns 15 to 25 cents back per year.

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Growth

Sales growth
Sales YoY
+9.4%
Steady sales growth (+9.4% YoY)
Profit growth
EPS YoY
+10.6%
Earnings growing (+10.6% YoY)

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

How steady the profit is
EPS Consistency
8/8 quarters
Every recent quarter grew earnings vs last year

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Cash Flow

Profit that turns into cash
Cash Conversion
144%
Turns 144% of profit into real cash
Spare cash per sale
FCF Margin
29.3%
Converts sales into free cash efficiently (29.3%)

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
N/A
Data not available
Covers its interest
Interest Cover
100.00x
Comfortably covers interest (100.0x)

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

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Valuation

Price vs profit
P/E Ratio (TTM)
30.3x
Pricey — P/E 30.3

P/E above the market average. People are paying up for expected growth.

Cheaper or dearer next year
P/E vs Forward
+8.2
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (30.3 → 22.1)

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Dividends

Not applicable for this business.
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