FFIV vs RBRK vs NTSK Stock Comparison

F5, Rubrik and Netskope Prices as of Oct 28, 2026 Peers: Industry group
FFIV F5, Inc.
$365.53 -16.1% 1M +36.6% 1Y
Market cap
$20.69B
P/E
28.7x
Revenue (TTM)
—
Div. yield
–
Cybersecurity Software Technology
2 wins
RBRK Rubrik, Inc.
$136.14 +20.4% 1M +78.8% 1Y
Market cap
$27.34B
P/E
–
Revenue (TTM)
$1.54B
Div. yield
–
Cybersecurity Software Technology
5 wins
NTSK Netskope Inc
$26.52 +48.6% 1M +13.8% 1Y
Market cap
$10.44B
P/E
–
Revenue (TTM)
$802.64M
Div. yield
–
Cybersecurity Software Technology

Head to Head

7 decided of 12

Rubrik leads on 5 of the 12 questions below (Rubrik 5, F5 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionFFIVRBRKNTSKLeader
Larger companyMarket capitalisation $20.69B $27.34B $10.44B RBRK
Cheaper on earningsLower P/E, profitable companies only 28.7x -107.5x -14.2x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 21.4x 256.9x — FFIV
Faster revenue growthRevenue growth, trailing twelve months — +42.4% +30.4% RBRK
More profitableNet margin, trailing twelve months — -16.5% -91.8% RBRK
Better return on capitalReturn on invested capital — — — –
Less leveragedLower net debt / EBITDA — — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +36.6% +78.8% +13.8% RBRK
Better 5-year returnAnnualised price return, 5 years +11.6%/yr — — –
Less volatileAnnualised volatility, 1 year 41.2% 65.7% 77.4% FFIV
Higher overall scoreMean of the five percentile scores vs peers — 55/100 24/100 RBRK

Percentile Scorecard

FFIVRBRKNTSK

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisFFIVRBRKNTSK
Valuation 73 #34 of 124 50 #63 of 124 13 #108 of 124
Growth 38 #70 of 113 92 #10 of 113 38 #71 of 113
Profitability – 57 #48 of 109 24 #83 of 109
Financial Health – 27 #93 of 127 31 #88 of 127
Shareholder Returns – 52 #31 of 63 15 #54 of 63
Overall – 55 24
  • FFIV ranked among 137 companies in Infrastructure Software
  • RBRK ranked among 137 companies in Infrastructure Software
  • NTSK ranked among 137 companies in Infrastructure Software

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodFFIVRBRKNTSKSPY
1 month -16.1%+20.4%+48.6% +0.9%
3 months -5.5%+89.2%+121.7% +5.9%
6 months +11.4%+153.6%+166.5% +8.5%
Year to date +43.2%+78.0%+51.2% +13.3%
1 year +36.6%+78.8%+13.8% +12.4%
3 years +144.1%—— +88.1%
3 years, per year +34.7%—— +23.5%
5 years +73.1%—— +68.2%
5 years, per year +11.6%—— +11.0%
10 years +171.4%—— +263.4%
10 years, per year +10.5%—— +13.8%

Risk

MeasureFFIVRBRKNTSKSPY
Volatility, 1Y 41.2%65.7%77.4% 12.7%
Downside volatility, 1Y 46.9%59.5%88.4% 12.7%
Beta vs S&P 500, 1Y 1.041.661.88 1.00
Return / volatility, 1Y 0.891.200.18 0.98
Max drawdown, 5Y -47.4%-56.1%-70.0% -25.4%
From 52-week high -23.8%0.0%0.0% -0.9%
52-week high $479.83$136.14$26.52 $779.14
52-week low $223.99$43.81$7.73 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleFFIVRBRKNTSK
P/E now vs peer median 28.7xmedian 37.9x -110.3xmedian 37.9x -14.6xmedian 37.9x
P/S now vs peer median 7.5xmedian 4.4x 18.3xmedian 4.4x 13.5xmedian 4.4x
EV/EBITDA now vs peer median —median 34.5x -223.0xmedian 34.5x -14.8xmedian 34.5x
P/FCF now vs peer median 25.7xmedian 26.6x 92.8xmedian 26.6x -154.3xmedian 26.6x
P/B now vs peer median 5.2xmedian 3.4x -56.5xmedian 3.4x 69.0xmedian 3.4x
PEG now vs peer median 1.19median 1.24 —median 1.24 —median 1.24

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsFFIVRBRKNTSK
Revenue – $1.54B $802.64M
Gross profit $2.80B $1.24B $561.19M
Operating income $818.22M -$282.40M -$759.79M
Net income $722.15M -$254.43M -$737.16M
Free cash flow – $303.91M -$70.14M
R&D $621.42M $440.96M $575.79M
EPS (diluted) $12.55 $-1.23 $-1.82
Cash & equivalents $1.59B $416.17M $220.85M
Shares (diluted) 57.55M 206.10M 405.05M
Enterprise value $20.69B $20.56B $5.96B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricFFIVRBRKNTSK
P/E 28.7x -110.3x -14.6x
P/FCF 25.7x 92.8x -154.3x
P/Operating cash flow 21.6x 83.7x -263.3x
P/S 7.5x 18.3x 13.5x
P/B 5.2x -56.5x 69.0x
P/Tangible book 5.2x -56.5x 78.3x
EV/EBITDA – -223.0x -14.8x
EV/EBIT – -93.7x -12.8x
EV/Revenue – 17.2x 12.1x
EV/FCF – 87.1x -139.0x
EV/Operating cash flow 21.6x 78.5x -237.3x
PEG (3Y EPS CAGR) 1.19 – –

Growth

14 metrics
MetricFFIVRBRKNTSK
Revenue growth (1Y) – 42.4% 30.4%
Revenue CAGR (3Y) – – –
Gross profit growth (1Y) 11.3% 46.6% 32.4%
Gross profit CAGR (3Y) 8.0% – –
Operating income growth (1Y) 6.8% 34.1% -307.8%
Operating income CAGR (3Y) 20.1% – –
Net income growth (1Y) 4.3% 42.7% -132.3%
Net income CAGR (3Y) 22.3% – –
EPS growth (1Y) 6.4% 45.8% 38.0%
EPS CAGR (3Y) 24.2% – –
Operating cash flow growth (1Y) 1.0% 59.7% –
Operating cash flow CAGR (3Y) 13.7% – –
Free cash flow growth (1Y) – 56.6% –
Free cash flow CAGR (3Y) – – –

Profitability

14 metrics
MetricFFIVRBRKNTSK
Gross margin – 80.2% 69.9%
EBITDA margin – -7.7% -82.0%
Operating margin – -18.3% -94.7%
Pretax margin – -14.6% -90.3%
Net margin – -16.5% -91.8%
FCF margin – 19.7% -8.7%
Operating cash flow margin – 21.9% -5.1%
Return on equity – – -443.7%
Return on assets – -9.1% -43.3%
Return on invested capital – – –
Return on capital employed – -19.8% -75.1%
Asset turnover – 0.5x 0.5x
Cash conversion (OCF / net income) 1.3x -1.3x 0.1x
Stock comp / revenue – 22.2% 79.4%

Financial Health

11 metrics
MetricFFIVRBRKNTSK
Debt / assets – – –
Debt / equity – – –
Net debt / EBITDA – – –
Debt / FCF – – –
Liabilities / assets – 117.5% 90.8%
Equity / assets 56.7% -17.5% 9.2%
Interest coverage – -65.0x –
Current ratio 1.7x 1.6x 2.0x
Quick ratio – 1.5x 1.8x
Cash ratio – 1.3x 1.5x
Altman Z-score – 4.03 1.33

Shareholder Returns

7 metrics
MetricFFIVRBRKNTSK
Dividend yield – – –
Net buyback yield – -0.1% -9.6%
Shareholder yield – -0.1% -9.6%
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusFFIVRBRKNTSK
Forward P/E 21.4xFY2027 256.9xFY2026 –
EPS, next fiscal year $17.06FY2027 $0.53FY2026 $-0.16FY2026
EPS growth, next FY +34.0%FY2027 – –
EPS growth, the year after +14.3% +41.5% –
Revenue, next fiscal year $3.52BFY2026 $1.78BFY2026 $868.74MFY2026
Revenue growth, next FY +13.8%FY2026 +34.8%FY2026 +22.5%FY2026
Revenue growth, the year after +6.4% +12.1% +28.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersFFIVRBRKNTSK
Held by institutions 96.6% 63.1% 76.2%
Institutions holding 831 572 203
Change in shares held, QoQ -2.6% +12.3% +31.5%
Institutions buying 483 404 154
Institutions selling 240 116 30
Buyers to sellers 2.01 3.48 5.13

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

FFIVRBRKNTSK
FFIV 1.00 0.33 0.28
RBRK 0.33 1.00 0.63
NTSK 0.28 0.63 1.00

Add a Peer

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Frequently Asked Questions

Which is bigger, FFIV, RBRK and NTSK?

Rubrik (RBRK) is the largest by market capitalisation: F5 (FFIV) $20.69B, Rubrik (RBRK) $27.34B, Netskope (NTSK) $10.44B.

Which company is growing faster?

Rubrik (RBRK) grew revenue fastest over the trailing twelve months: Rubrik (RBRK) +42.4%, Netskope (NTSK) +30.4%.

Which company is more profitable?

Rubrik (RBRK) has the highest net margin (Rubrik (RBRK) -16.5%, Netskope (NTSK) -91.8%).

Which stock has performed better?

Over the past year Rubrik (RBRK) returned the most: F5 (FFIV) +36.6%, Rubrik (RBRK) +78.8%, Netskope (NTSK) +13.8%. Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, F5 (FFIV) has been the steadiest (F5 (FFIV) 41.2%, Rubrik (RBRK) 65.7%, Netskope (NTSK) 77.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, FFIV, RBRK and NTSK?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Rubrik (RBRK) leads on 5. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.