Rubrik

RBRK

Software - Infrastructure · Technology

Price

$100.09

+2.57 (+2.64%)

Market Cap

$20.60B

Winston Score

Winston is serious

Below-average fundamentals — multiple weak pillars.

Data as of Aug 23, 2026 · filings through Apr 30, 2026

How the score breaks down

Quality

Mixed

Growth

Good

Cash Flow

Mixed

Stability

Data not available

Valuation

Data not available

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Share count rising — dilution

+11.7% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 175.9M (2022) → 196.5M (2026)

Winston Score History

The full picture

Rubrik is a cybersecurity and data protection company. It makes software that helps businesses back up their data and recover quickly if they get hit by a ransomware attack or other disaster. Its main customers are large enterprises and government agencies, and it competes in the fast-growing data security market alongside companies like Cohesity and Veeam.

Rubrik makes most of its money through subscriptions, where customers pay a recurring fee to use its cloud-based platform. The company operates globally, with a strong presence in North America, and generated roughly $900 million in annual revenue as of its 2024 fiscal year. Its main competitive advantage is its platform's ability to detect threats inside backup data, not just store it — but the company is still unprofitable, spending heavily on sales and growth, which means its path to sustainable earnings remains the key risk investors are watching.

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Growth Profile

For growth stock investors

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

Revenue Growth

+46.3% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+28.0% YoY

YoY Growth Rate

EPS growth accelerating

R&D Spend

$374M/ year

↓ Declining (-30% vs prior year)

28.4% of revenue

1.9x the sector average (15%)

R&D spend declining — could signal cost-cutting or efficiency

Insider Activity

23.5%ownership

→ Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

$1.7B cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

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

Revenue accelerating

Rubrik grew revenue 46% 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.

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

80.5%

Premium pricing power — 80.5% gross margin

Profit after running costs

Operating Margin

-13.6%

Losing money on operations — -13.6%

Return on the money invested

ROCE

-8.1%

Weak — -8.1% return on capital

Negative ROIC means the business is losing money on every dollar invested in it.

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Growth

Sales growth

Sales YoY

+45.7%

Fast-growing sales (+45.7% YoY)

Profit growth

EPS YoY

N/A

—

Data not available

How steady the profit is

EPS Consistency

5/8 quarters

Mixed — about half the quarters showed growth

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Cash Flow

Profit that turns into cash

Cash Conversion

N/A

—

Data not available

Spare cash per sale

FCF Margin

21.2%

Converts sales into free cash efficiently (21.2%)

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

N/A

Data not available

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Valuation

Price vs profit

P/E Ratio (TTM)

N/M

—

Negative earnings — P/E not meaningful

Cheaper or dearer next year

P/E vs Forward

N/A

not available

Data not available

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Dividends

Not applicable for this business.

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