KEYS vs EMR vs TDY Stock Comparison

Keysight Technologies, Emerson Electric and Teledyne Technologies Prices as of Oct 23, 2026 Peers: Industry group
EMR Emerson Electric Co
$161.60 +4.6% 1M +21.3% 1Y
Market cap
$90.47B
P/E
35.1x
Revenue (TTM)
$18.64B
Div. yield
0.01%
Pumps and Valves Industrials
2 wins

Head to Head

11 decided of 12

Keysight Technologies leads on 6 of the 12 questions below (Keysight Technologies 6, Teledyne Technologies 3, Emerson Electric 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionKEYSEMRTDYLeader
Larger companyMarket capitalisation $55.73B $90.47B $29.94B EMR
Cheaper on earningsLower P/E, profitable companies only 44.2x 35.1x 29.2x TDY
Cheaper on forward earningsLower price / next fiscal year consensus EPS 29.4x 24.0x 24.7x EMR
Faster revenue growthRevenue growth, trailing twelve months +25.5% +4.8% +8.6% KEYS
More profitableNet margin, trailing twelve months 19.1% 13.8% 15.8% KEYS
Better return on capitalReturn on invested capital 13.4% 10.9% 8.1% KEYS
Less leveragedLower net debt / EBITDA -0.1x 1.8x 0.9x KEYS
Higher dividend yieldTrailing dividend yield 0.00% 0.01% 0.00% –
Better 1-year returnPrice return, last 12 months +86.8% +21.3% +16.6% KEYS
Better 5-year returnAnnualised price return, 5 years +12.3%/yr +10.8%/yr +7.0%/yr KEYS
Less volatileAnnualised volatility, 1 year 45.0% 31.7% 25.4% TDY
Higher overall scoreMean of the five percentile scores vs peers 63/100 45/100 70/100 TDY

Percentile Scorecard

KEYSEMRTDY

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

AxisKEYSEMRTDY
Valuation 27 #82 of 112 35 #133 of 203 66 #35 of 100
Growth 64 #40 of 109 40 #113 of 188 38 #61 of 97
Profitability 89 #13 of 105 85 #29 of 187 82 #18 of 96
Financial Health 54 #54 of 117 29 #158 of 222 75 #27 of 106
Shareholder Returns 80 #17 of 82 36 #99 of 153 91 #7 of 65
Overall 63 45 70
  • KEYS ranked among 122 companies in Computer Hardware
  • EMR ranked among 222 companies in Machinery
  • TDY ranked among 107 companies in Aerospace and Defense

Price Performance

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

Returns

PeriodKEYSEMRTDYSPY
1 month -11.0%+4.6%+0.7% -1.0%
3 months -1.3%+9.2%-4.5% +2.9%
6 months -9.3%+14.3%-3.6% +6.4%
Year to date +54.8%+21.8%+22.5% +11.4%
1 year +86.8%+21.3%+16.6% +13.1%
3 years +157.4%+78.1%+62.0% +79.4%
3 years, per year +37.1%+21.2%+17.5% +21.5%
5 years +78.5%+67.2%+40.2% +67.7%
5 years, per year +12.3%+10.8%+7.0% +10.9%
10 years +868.3%+222.5%+494.9% +255.2%
10 years, per year +25.5%+12.4%+19.5% +13.5%

Risk

MeasureKEYSEMRTDYSPY
Volatility, 1Y 45.0%31.7%25.4% 12.7%
Downside volatility, 1Y 43.9%33.3%23.8% 12.7%
Beta vs S&P 500, 1Y 1.891.521.08 1.00
Return / volatility, 1Y 1.930.670.65 1.03
Max drawdown, 5Y -42.6%-29.9%-32.2% -25.4%
From 52-week high -18.9%-1.7%-9.5% -2.5%
52-week high $387.90$164.37$691.24 $779.14
52-week low $167.77$123.30$484.47 $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.

MultipleKEYSEMRTDY
P/E now vs peer median 42.7xmedian 31.3x 35.0xmedian 25.9x 28.2xmedian 26.2x
P/S now vs peer median 8.1xmedian 2.6x 4.8xmedian 1.9x 4.4xmedian 2.9x
EV/EBITDA now vs peer median 31.0xmedian 19.6x 16.4xmedian 13.7x 18.5xmedian 14.7x
P/FCF now vs peer median 36.5xmedian 28.3x 26.0xmedian 21.1x 25.2xmedian 24.9x
P/B now vs peer median 8.2xmedian 2.9x 4.4xmedian 2.3x 2.6xmedian 2.4x
PEG now vs peer median 8.75median 1.15 -0.84median 1.19 -47.50median 0.92

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 monthsKEYSEMRTDY
Revenue $6.58B $18.64B $6.52B
Gross profit $4.26B $9.91B $2.84B
Operating income $1.33B $4.68B $1.30B
Net income $1.26B $2.58B $1.03B
Free cash flow $1.47B $3.46B $1.15B
R&D $1.19B – $330.60M
EPS (diluted) $7.28 $4.59 $21.90
Cash & equivalents $2.61B $2.18B $562.40M
Total debt $2.52B $54.11B $2.03B
Shares (diluted) 173.00M 561.10M 46.90M
Enterprise value $46.66B $83.21B $28.17B

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
MetricKEYSEMRTDY
P/E 42.7x 35.0x 28.2x
P/FCF 36.5x 26.0x 25.2x
P/Operating cash flow 33.4x 23.0x 22.6x
P/S 8.1x 4.8x 4.4x
P/B 8.2x 4.4x 2.6x
P/Tangible book 9.8x 7.7x 3.1x
EV/EBITDA 31.0x 16.4x 18.5x
EV/EBIT 40.1x 21.6x 23.3x
EV/Revenue 8.1x 5.4x 4.7x
EV/FCF 36.4x 29.2x 26.5x
EV/Operating cash flow 33.3x 25.8x 23.7x
PEG (3Y EPS CAGR) 8.75 -0.84 -47.50

Growth

14 metrics
MetricKEYSEMRTDY
Revenue growth (1Y) 25.5% 4.8% 8.6%
Revenue CAGR (3Y) 5.6% 7.6% 0.5%
Gross profit growth (1Y) 30.2% 5.7% 10.8%
Gross profit CAGR (3Y) 5.8% 11.0% -0.1%
Operating income growth (1Y) 49.9% 9.2% 23.3%
Operating income CAGR (3Y) -2.1% 13.6% 0.0%
Net income growth (1Y) 131.6% -3.0% 25.5%
Net income CAGR (3Y) 3.7% -42.0% -1.3%
EPS growth (1Y) 131.6% -2.2% 27.2%
EPS CAGR (3Y) 4.9% -41.6% -0.6%
Operating cash flow growth (1Y) 4.0% 4.4% 11.9%
Operating cash flow CAGR (3Y) 4.0% 10.1% 26.7%
Free cash flow growth (1Y) 3.8% 4.4% 10.5%
Free cash flow CAGR (3Y) 6.6% 9.4% 29.4%

Profitability

14 metrics
MetricKEYSEMRTDY
Gross margin 64.7% 53.2% 43.6%
EBITDA margin 26.2% 33.1% 25.3%
Operating margin 20.3% 25.1% 20.0%
Pretax margin 21.5% 17.6% 19.4%
Net margin 19.1% 13.8% 15.8%
FCF margin 22.3% 18.6% 17.6%
Operating cash flow margin 24.4% 21.0% 19.6%
Return on equity 19.8% 12.7% 9.3%
Return on assets 10.8% 6.1% 6.7%
Return on invested capital 13.4% 10.9% 8.1%
Return on capital employed 14.5% 14.9% 9.4%
Asset turnover 0.6x 0.4x 0.4x
Cash conversion (OCF / net income) 1.3x 1.5x 1.2x
Stock comp / revenue 3.3% 1.3% 0.6%

Financial Health

11 metrics
MetricKEYSEMRTDY
Debt / assets 21.1% 31.1% 13.0%
Debt / equity 0.4x 0.6x 0.2x
Net debt / EBITDA -0.1x 1.8x 0.9x
Debt / FCF 1.7x 3.8x 1.8x
Liabilities / assets 44.9% 51.7% 28.5%
Equity / assets 55.1% 48.3% 71.5%
Interest coverage 12.3x – 26.9x
Current ratio 2.0x 0.9x 2.3x
Quick ratio 1.4x 0.5x 1.3x
Cash ratio 1.0x 0.2x 0.4x
Altman Z-score 8.15 4.63 5.47

Shareholder Returns

7 metrics
MetricKEYSEMRTDY
Dividend yield – 1.4% –
Net buyback yield 2.2% 1.0% 1.6%
Shareholder yield 2.2% 2.4% 1.6%
Payout ratio (earnings) – 47.8% –
Payout ratio (FCF) – 35.6% –
Dividend growth (1Y) – 3.1% –
Dividend CAGR (3Y) – 0.7% –

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.

ConsensusKEYSEMRTDY
Forward P/E 29.4xFY2026 24.0xFY2026 24.7xFY2026
EPS, next fiscal year $10.71FY2026 $6.74FY2026 $25.31FY2026
EPS growth, next FY +49.6%FY2026 +12.3%FY2026 +15.1%FY2026
EPS growth, the year after +20.4% +15.4% +13.2%
Revenue, next fiscal year $6.71BFY2026 $18.13BFY2026 $6.15BFY2026
Revenue growth, next FY +24.8%FY2026 +0.6%FY2026 +0.4%FY2026
Revenue growth, the year after +18.9% +15.3% +5.5%
KEYS estimates →EMR estimates →TDY estimates →

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersKEYSEMRTDY
Held by institutions 89.8% 82.1% 97.2%
Institutions holding 1,246 2,290 886
Change in shares held, QoQ +1.2% +0.9% +2.7%
Institutions buying 674 1,080 399
Institutions selling 380 798 327
Buyers to sellers 1.77 1.35 1.22
KEYS holders →EMR holders →TDY holders →

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.

KEYSEMRTDY
KEYS 1.00 0.51 0.50
EMR 0.51 1.00 0.58
TDY 0.50 0.58 1.00

Add a Peer

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KEYS · Test and Measurement
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Plot all 18 Test and Measurement stocks → Plot all 43 Pumps and Valves stocks → Plot all 204 Defense stocks →

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Frequently Asked Questions

Which is bigger, KEYS, EMR and TDY?

Emerson Electric (EMR) is the largest by market capitalisation: Keysight Technologies (KEYS) $55.73B, Emerson Electric (EMR) $90.47B, Teledyne Technologies (TDY) $29.94B.

Which stock is cheaper, KEYS, EMR and TDY?

Teledyne Technologies (TDY) trades on the lowest price-to-earnings ratio (Keysight Technologies (KEYS) 44.2x, Emerson Electric (EMR) 35.1x, Teledyne Technologies (TDY) 29.2x). On next year's consensus earnings, Emerson Electric (EMR) is cheapest (Keysight Technologies (KEYS) 29.4x, Emerson Electric (EMR) 24.0x, Teledyne Technologies (TDY) 24.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Keysight Technologies (KEYS) grew revenue fastest over the trailing twelve months: Keysight Technologies (KEYS) +25.5%, Emerson Electric (EMR) +4.8%, Teledyne Technologies (TDY) +8.6%.

Which company is more profitable?

Keysight Technologies (KEYS) has the highest net margin (Keysight Technologies (KEYS) 19.1%, Emerson Electric (EMR) 13.8%, Teledyne Technologies (TDY) 15.8%). On return on invested capital, Keysight Technologies (KEYS) leads (Keysight Technologies (KEYS) 13.4%, Emerson Electric (EMR) 10.9%, Teledyne Technologies (TDY) 8.1%).

Which stock has performed better?

Over the past year Keysight Technologies (KEYS) returned the most: Keysight Technologies (KEYS) +86.8%, Emerson Electric (EMR) +21.3%, Teledyne Technologies (TDY) +16.6%. Over five years, Keysight Technologies (KEYS) compounded fastest (Keysight Technologies (KEYS) +12.3%/yr, Emerson Electric (EMR) +10.8%/yr, Teledyne Technologies (TDY) +7.0%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Keysight Technologies (KEYS) 0.00%, Emerson Electric (EMR) 0.01%, Teledyne Technologies (TDY) 0.00%. Keysight Technologies (KEYS) and Teledyne Technologies (TDY) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Teledyne Technologies (TDY) has been the steadiest (Keysight Technologies (KEYS) 45.0%, Emerson Electric (EMR) 31.7%, Teledyne Technologies (TDY) 25.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, KEYS, EMR and TDY?

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 6. 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.