KEYS vs NPO vs VIAV Stock Comparison

Keysight Technologies, Enpro and Viavi Solutions Prices as of Oct 29, 2026 Peers: Industry group
NPO Enpro Inc.
$284.50 -7.5% 1M +25.2% 1Y
Market cap
$6.02B
P/E
136.1x
Revenue (TTM)
$1.22B
Div. yield
0.45%
Pumps and Valves Industrials
2 wins
VIAV Viavi Solutions Inc.
$33.32 -20.3% 1M +138.3% 1Y
Market cap
$8.23B
P/E
–
Revenue (TTM)
$1.52B
Div. yield
–
Test and Measurement Technology
4 wins

Head to Head

11 decided of 12

Keysight Technologies leads on 5 of the 12 questions below (Keysight Technologies 5, Viavi Solutions 4, Enpro 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionKEYSNPOVIAVLeader
Larger companyMarket capitalisation $56.16B $6.02B $8.23B KEYS
Cheaper on earningsLower P/E, profitable companies only 44.8x 136.1x -251.5x KEYS
Cheaper on forward earningsLower price / next fiscal year consensus EPS 30.8x 29.0x 20.8x VIAV
Faster revenue growthRevenue growth, trailing twelve months +25.5% +13.3% +40.0% VIAV
More profitableNet margin, trailing twelve months 19.1% 3.6% -2.0% KEYS
Better return on capitalReturn on invested capital 13.4% 6.3% 0.0% KEYS
Less leveragedLower net debt / EBITDA -0.1x 1.8x -1.9x VIAV
Higher dividend yieldTrailing dividend yield — 0.45% — –
Better 1-year returnPrice return, last 12 months +93.5% +25.2% +138.3% VIAV
Better 5-year returnAnnualised price return, 5 years +12.9%/yr +26.0%/yr +16.7%/yr NPO
Less volatileAnnualised volatility, 1 year 45.3% 40.6% 79.6% NPO
Higher overall scoreMean of the five percentile scores vs peers 64/100 43/100 37/100 KEYS

Percentile Scorecard

KEYSNPOVIAV

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

AxisKEYSNPOVIAV
Valuation 26 #83 of 112 21 #160 of 203 25 #84 of 112
Growth 66 #37 of 108 48 #99 of 188 47 #58 of 108
Profitability 89 #12 of 104 55 #83 of 183 43 #60 of 104
Financial Health 53 #55 of 116 62 #82 of 216 46 #63 of 116
Shareholder Returns 84 #13 of 78 31 #106 of 152 22 #61 of 78
Overall 64 43 37
  • KEYS ranked among 121 companies in Computer Hardware
  • NPO ranked among 222 companies in Machinery
  • VIAV ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodKEYSNPOVIAVSPY
1 month -8.5%-7.5%-20.3% +0.7%
3 months +5.5%-9.1%-4.9% +3.7%
6 months -5.7%-2.4%-36.4% +7.1%
Year to date +62.3%+32.9%+87.0% +12.8%
1 year +93.5%+25.2%+138.3% +11.9%
3 years +175.5%+147.3%+344.3% +85.2%
3 years, per year +40.2%+35.3%+64.4% +22.8%
5 years +83.2%+217.3%+116.4% +67.6%
5 years, per year +12.9%+26.0%+16.7% +10.9%
10 years +905.3%+429.5%+368.6% +262.0%
10 years, per year +26.0%+18.1%+16.7% +13.7%

Risk

MeasureKEYSNPOVIAVSPY
Volatility, 1Y 45.3%40.6%79.6% 12.7%
Downside volatility, 1Y 43.7%43.3%76.2% 12.6%
Beta vs S&P 500, 1Y 1.941.842.51 1.00
Return / volatility, 1Y 2.070.621.74 0.94
Max drawdown, 5Y -42.6%-34.2%-62.8% -25.4%
From 52-week high -15.0%-26.6%-39.8% -1.2%
52-week high $387.90$387.65$55.33 $779.14
52-week low $169.67$202.55$13.98 $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.

MultipleKEYSNPOVIAV
P/E now vs peer median 44.8xmedian 32.9x 136.1xmedian 25.8x -251.5xmedian 32.9x
P/S now vs peer median 8.5xmedian 2.9x 4.9xmedian 1.9x 5.4xmedian 2.9x
EV/EBITDA now vs peer median 32.5xmedian 20.0x 23.1xmedian 14.6x 35.8xmedian 20.0x
P/FCF now vs peer median 38.2xmedian 30.2x 36.1xmedian 22.2x 99.4xmedian 30.2x
P/B now vs peer median 8.5xmedian 2.9x 3.8xmedian 2.2x 5.7xmedian 2.9x
PEG now vs peer median 9.17median 1.08 -3.67median 1.45 5.35median 1.08

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 monthsKEYSNPOVIAV
Revenue $6.58B $1.22B $1.52B
Gross profit $4.26B $523.50M $875.40M
Operating income $1.33B $175.30M $105.10M
Net income $1.26B $44.10M -$30.40M
Free cash flow $1.47B $167.00M $82.80M
R&D $1.19B – $262.70M
EPS (diluted) $7.28 $2.06 $-0.13
Cash & equivalents $2.61B $77.00M $647.80M
Total debt $2.52B $575.50M $244.80M
Shares (diluted) 173.00M 21.40M 229.50M
Enterprise value $47.09B $5.62B $5.77B

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
MetricKEYSNPOVIAV
P/E 44.8x 136.1x -251.5x
P/FCF 38.2x 36.1x 99.4x
P/Operating cash flow 35.0x 27.5x 72.3x
P/S 8.5x 4.9x 5.4x
P/B 8.5x 3.8x 5.7x
P/Tangible book 10.3x 7.5x 7.7x
EV/EBITDA 32.5x 23.1x 35.8x
EV/EBIT 42.1x 37.2x 74.5x
EV/Revenue 8.5x 5.3x 5.2x
EV/FCF 38.2x 39.0x 94.5x
EV/Operating cash flow 35.0x 29.8x 68.7x
PEG (3Y EPS CAGR) 9.17 -3.67 5.35

Growth

14 metrics
MetricKEYSNPOVIAV
Revenue growth (1Y) 25.5% 13.3% 40.0%
Revenue CAGR (3Y) 5.6% 3.3% 11.1%
Gross profit growth (1Y) 30.2% 13.2% 40.9%
Gross profit CAGR (3Y) 5.8% 5.4% 11.1%
Operating income growth (1Y) 49.9% 14.0% 82.8%
Operating income CAGR (3Y) -2.1% 78.0% 8.4%
Net income growth (1Y) 131.6% -47.9% -187.4%
Net income CAGR (3Y) 3.7% -36.2% -47.2%
EPS growth (1Y) 131.6% -48.4% -185.9%
EPS CAGR (3Y) 4.9% -37.1% -47.0%
Operating cash flow growth (1Y) 4.0% 17.3% 26.8%
Operating cash flow CAGR (3Y) 4.0% 21.6% -0.1%
Free cash flow growth (1Y) 3.8% 9.4% 33.5%
Free cash flow CAGR (3Y) 6.6% 24.2% 9.5%

Profitability

14 metrics
MetricKEYSNPOVIAV
Gross margin 64.7% 42.8% 57.7%
EBITDA margin 26.2% 23.1% 14.4%
Operating margin 20.3% 14.3% 6.9%
Pretax margin 21.5% 4.6% 1.1%
Net margin 19.1% 3.6% -2.0%
FCF margin 22.3% 13.6% 5.5%
Operating cash flow margin 24.4% 17.9% 7.5%
Return on equity 19.8% 2.8% -2.7%
Return on assets 10.8% 1.7% -1.2%
Return on invested capital 13.4% 6.3% 0.0%
Return on capital employed 14.5% 7.2% 5.4%
Asset turnover 0.6x 0.5x 0.6x
Cash conversion (OCF / net income) 1.3x 5.0x -3.7x
Stock comp / revenue 3.3% 1.3% 3.6%

Financial Health

11 metrics
MetricKEYSNPOVIAV
Debt / assets 21.1% 21.6% 9.0%
Debt / equity 0.4x 0.4x 0.2x
Net debt / EBITDA -0.1x 1.8x -1.9x
Debt / FCF 1.7x 3.4x 3.0x
Liabilities / assets 44.9% 40.3% 46.5%
Equity / assets 55.1% 59.7% 53.5%
Interest coverage 12.3x 5.2x 2.2x
Current ratio 2.0x 2.3x 1.8x
Quick ratio 1.4x 1.2x 1.5x
Cash ratio 1.0x 0.4x 1.0x
Altman Z-score 8.44 4.81 -31.19

Shareholder Returns

7 metrics
MetricKEYSNPOVIAV
Dividend yield – 0.4% –
Net buyback yield 2.1% 0.2% -6.7%
Shareholder yield 2.1% 0.6% -6.7%
Payout ratio (earnings) – 60.8% –
Payout ratio (FCF) – 16.0% –
Dividend growth (1Y) – 3.9% –
Dividend CAGR (3Y) – 3.9% –

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.

ConsensusKEYSNPOVIAV
Forward P/E 30.8xFY2026 29.0xFY2026 20.8xFY2027
EPS, next fiscal year $10.71FY2026 $9.81FY2026 $1.60FY2027
EPS growth, next FY +49.6%FY2026 +24.0%FY2026 +60.0%FY2027
EPS growth, the year after +20.4% +17.6% +14.4%
Revenue, next fiscal year $6.71BFY2026 $1.40BFY2026 $1.82BFY2027
Revenue growth, next FY +24.8%FY2026 +23.0%FY2026 +19.4%FY2027
Revenue growth, the year after +18.9% +8.1% +21.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersKEYSNPOVIAV
Held by institutions 89.8% 99.9% 97.1%
Institutions holding 1,248 411 565
Change in shares held, QoQ +1.2% +0.7% +4.6%
Institutions buying 675 212 344
Institutions selling 381 136 181
Buyers to sellers 1.77 1.56 1.90

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.

KEYSNPOVIAV
KEYS 1.00 0.63 0.69
NPO 0.63 1.00 0.59
VIAV 0.69 0.59 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, KEYS, NPO and VIAV?

Keysight Technologies (KEYS) is the largest by market capitalisation: Keysight Technologies (KEYS) $56.16B, Enpro (NPO) $6.02B, Viavi Solutions (VIAV) $8.23B.

Which stock is cheaper, KEYS, NPO and VIAV?

Keysight Technologies (KEYS) trades on the lowest price-to-earnings ratio (Keysight Technologies (KEYS) 44.8x, Enpro (NPO) 136.1x, Viavi Solutions (VIAV) -251.5x). On next year's consensus earnings, Viavi Solutions (VIAV) is cheapest (Keysight Technologies (KEYS) 30.8x, Enpro (NPO) 29.0x, Viavi Solutions (VIAV) 20.8x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Viavi Solutions (VIAV) grew revenue fastest over the trailing twelve months: Keysight Technologies (KEYS) +25.5%, Enpro (NPO) +13.3%, Viavi Solutions (VIAV) +40.0%.

Which company is more profitable?

Keysight Technologies (KEYS) has the highest net margin (Keysight Technologies (KEYS) 19.1%, Enpro (NPO) 3.6%, Viavi Solutions (VIAV) -2.0%). On return on invested capital, Keysight Technologies (KEYS) leads (Keysight Technologies (KEYS) 13.4%, Enpro (NPO) 6.3%, Viavi Solutions (VIAV) 0.0%).

Which stock has performed better?

Over the past year Viavi Solutions (VIAV) returned the most: Keysight Technologies (KEYS) +93.5%, Enpro (NPO) +25.2%, Viavi Solutions (VIAV) +138.3%. Over five years, Enpro (NPO) compounded fastest (Keysight Technologies (KEYS) +12.9%/yr, Enpro (NPO) +26.0%/yr, Viavi Solutions (VIAV) +16.7%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Enpro (NPO) 0.45%. Keysight Technologies (KEYS) and Viavi Solutions (VIAV) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Enpro (NPO) has been the steadiest (Keysight Technologies (KEYS) 45.3%, Enpro (NPO) 40.6%, Viavi Solutions (VIAV) 79.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, KEYS, NPO and VIAV?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Keysight Technologies (KEYS) 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.