KEYS vs TER vs TDY Stock Comparison

Keysight Technologies, Teradyne and Teledyne Technologies Prices as of Oct 23, 2026 Peers: Industry group
TER Teradyne, Inc
$308.85 -20.6% 1M +112.9% 1Y
Market cap
$48.36B
P/E
42.0x
Revenue (TTM)
$4.46B
Div. yield
–
Test and Measurement Technology
5 wins

Head to Head

11 decided of 12

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

QuestionKEYSTERTDYLeader
Larger companyMarket capitalisation $55.73B $48.36B $29.94B KEYS
Cheaper on earningsLower P/E, profitable companies only 44.2x 42.0x 29.2x TDY
Cheaper on forward earningsLower price / next fiscal year consensus EPS 29.4x 31.9x 24.7x TDY
Faster revenue growthRevenue growth, trailing twelve months +25.5% +57.9% +8.6% TER
More profitableNet margin, trailing twelve months 19.1% 25.8% 15.8% TER
Better return on capitalReturn on invested capital 13.4% 35.3% 8.1% TER
Less leveragedLower net debt / EBITDA -0.1x — 0.9x KEYS
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +86.8% +112.9% +16.6% TER
Better 5-year returnAnnualised price return, 5 years +12.3%/yr +21.6%/yr +7.0%/yr TER
Less volatileAnnualised volatility, 1 year 45.0% 78.6% 25.4% TDY
Higher overall scoreMean of the five percentile scores vs peers 63/100 65/100 70/100 TDY

Percentile Scorecard

KEYSTERTDY

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

AxisKEYSTERTDY
Valuation 27 #82 of 112 23 #87 of 112 66 #35 of 100
Growth 64 #40 of 109 89 #13 of 109 38 #61 of 97
Profitability 89 #13 of 105 93 #8 of 105 82 #18 of 96
Financial Health 54 #54 of 117 72 #34 of 117 75 #27 of 106
Shareholder Returns 80 #17 of 82 49 #42 of 82 91 #7 of 65
Overall 63 65 70
  • KEYS ranked among 122 companies in Computer Hardware
  • TER ranked among 122 companies in Computer Hardware
  • 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

PeriodKEYSTERTDYSPY
1 month -11.0%-20.6%+0.7% -1.0%
3 months -1.3%-11.7%-4.5% +2.9%
6 months -9.3%-26.1%-3.6% +6.4%
Year to date +54.8%+59.6%+22.5% +11.4%
1 year +86.8%+112.9%+16.6% +13.1%
3 years +157.4%+237.1%+62.0% +79.4%
3 years, per year +37.1%+50.0%+17.5% +21.5%
5 years +78.5%+166.0%+40.2% +67.7%
5 years, per year +12.3%+21.6%+7.0% +10.9%
10 years +868.3%+1,342.6%+494.9% +255.2%
10 years, per year +25.5%+30.6%+19.5% +13.5%

Risk

MeasureKEYSTERTDYSPY
Volatility, 1Y 45.0%78.6%25.4% 12.7%
Downside volatility, 1Y 43.9%84.9%23.8% 12.7%
Beta vs S&P 500, 1Y 1.893.351.08 1.00
Return / volatility, 1Y 1.931.440.65 1.03
Max drawdown, 5Y -42.6%-59.7%-32.2% -25.4%
From 52-week high -18.9%-36.2%-9.5% -2.5%
52-week high $387.90$483.84$691.24 $779.14
52-week low $167.77$144.28$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.

MultipleKEYSTERTDY
P/E now vs peer median 42.7xmedian 31.3x 42.0xmedian 31.3x 28.2xmedian 26.2x
P/S now vs peer median 8.1xmedian 2.6x 10.8xmedian 2.6x 4.4xmedian 2.9x
EV/EBITDA now vs peer median 31.0xmedian 19.6x 32.0xmedian 19.6x 18.5xmedian 14.7x
P/FCF now vs peer median 36.5xmedian 28.3x 62.7xmedian 28.3x 25.2xmedian 24.9x
P/B now vs peer median 8.2xmedian 2.9x 13.9xmedian 2.9x 2.6xmedian 2.4x
PEG now vs peer median 8.75median 1.15 1.45median 1.15 -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 monthsKEYSTERTDY
Revenue $6.58B $4.46B $6.52B
Gross profit $4.26B $2.64B $2.84B
Operating income $1.33B $1.35B $1.30B
Net income $1.26B $1.15B $1.03B
Free cash flow $1.47B $769.75M $1.15B
R&D $1.19B $559.87M $330.60M
EPS (diluted) $7.28 $7.29 $21.90
Cash & equivalents $2.61B $349.54M $562.40M
Total debt $2.52B $400.00M $2.03B
Shares (diluted) 173.00M 157.69M 46.90M
Enterprise value $46.66B $47.14B $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
MetricKEYSTERTDY
P/E 42.7x 42.0x 28.2x
P/FCF 36.5x 62.7x 25.2x
P/Operating cash flow 33.4x 45.4x 22.6x
P/S 8.1x 10.8x 4.4x
P/B 8.2x 13.9x 2.6x
P/Tangible book 9.8x 14.3x 3.1x
EV/EBITDA 31.0x 32.0x 18.5x
EV/EBIT 40.1x 35.5x 23.3x
EV/Revenue 8.1x 10.7x 4.7x
EV/FCF 36.4x 62.3x 26.5x
EV/Operating cash flow 33.3x 45.0x 23.7x
PEG (3Y EPS CAGR) 8.75 1.45 -47.50

Growth

14 metrics
MetricKEYSTERTDY
Revenue growth (1Y) 25.5% 57.9% 8.6%
Revenue CAGR (3Y) 5.6% 16.0% 0.5%
Gross profit growth (1Y) 30.2% 58.2% 10.8%
Gross profit CAGR (3Y) 5.8% 16.7% -0.1%
Operating income growth (1Y) 49.9% 160.9% 23.3%
Operating income CAGR (3Y) -2.1% 28.8% 0.0%
Net income growth (1Y) 131.6% 145.2% 25.5%
Net income CAGR (3Y) 3.7% 27.2% -1.3%
EPS growth (1Y) 131.6% 149.0% 27.2%
EPS CAGR (3Y) 4.9% 29.0% -0.6%
Operating cash flow growth (1Y) 4.0% 34.4% 11.9%
Operating cash flow CAGR (3Y) 4.0% 19.9% 26.7%
Free cash flow growth (1Y) 3.8% 38.4% 10.5%
Free cash flow CAGR (3Y) 6.6% 18.5% 29.4%

Profitability

14 metrics
MetricKEYSTERTDY
Gross margin 64.7% 59.2% 43.6%
EBITDA margin 26.2% 33.5% 25.3%
Operating margin 20.3% 30.2% 20.0%
Pretax margin 21.5% 30.2% 19.4%
Net margin 19.1% 25.8% 15.8%
FCF margin 22.3% 17.2% 17.6%
Operating cash flow margin 24.4% 23.9% 19.6%
Return on equity 19.8% 35.2% 9.3%
Return on assets 10.8% 24.9% 6.7%
Return on invested capital 13.4% 35.3% 8.1%
Return on capital employed 14.5% 37.8% 9.4%
Asset turnover 0.6x 1.0x 0.4x
Cash conversion (OCF / net income) 1.3x 0.9x 1.2x
Stock comp / revenue 3.3% 1.7% 0.6%

Financial Health

11 metrics
MetricKEYSTERTDY
Debt / assets 21.1% – 13.0%
Debt / equity 0.4x – 0.2x
Net debt / EBITDA -0.1x – 0.9x
Debt / FCF 1.7x – 1.8x
Liabilities / assets 44.9% 29.5% 28.5%
Equity / assets 55.1% 70.5% 71.5%
Interest coverage 12.3x 118.8x 26.9x
Current ratio 2.0x 2.1x 2.3x
Quick ratio 1.4x 1.3x 1.3x
Cash ratio 1.0x 0.3x 0.4x
Altman Z-score 8.15 22.47 5.47

Shareholder Returns

7 metrics
MetricKEYSTERTDY
Dividend yield – 0.2% –
Net buyback yield 2.2% 1.0% 1.6%
Shareholder yield 2.2% 1.1% 1.6%
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.

ConsensusKEYSTERTDY
Forward P/E 29.4xFY2026 31.9xFY2026 24.7xFY2026
EPS, next fiscal year $10.71FY2026 $9.69FY2026 $25.31FY2026
EPS growth, next FY +49.6%FY2026 +144.7%FY2026 +15.1%FY2026
EPS growth, the year after +20.4% +24.9% +13.2%
Revenue, next fiscal year $6.71BFY2026 $5.01BFY2026 $6.15BFY2026
Revenue growth, next FY +24.8%FY2026 +57.1%FY2026 +0.4%FY2026
Revenue growth, the year after +18.9% +18.1% +5.5%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersKEYSTERTDY
Held by institutions 89.8% 97.3% 97.2%
Institutions holding 1,246 1,419 886
Change in shares held, QoQ +1.2% +5.2% +2.7%
Institutions buying 674 828 399
Institutions selling 380 456 327
Buyers to sellers 1.77 1.82 1.22

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.

KEYSTERTDY
KEYS 1.00 0.68 0.50
TER 0.68 1.00 0.48
TDY 0.50 0.48 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, KEYS, TER and TDY?

Keysight Technologies (KEYS) is the largest by market capitalisation: Keysight Technologies (KEYS) $55.73B, Teradyne (TER) $48.36B, Teledyne Technologies (TDY) $29.94B.

Which stock is cheaper, KEYS, TER and TDY?

Teledyne Technologies (TDY) trades on the lowest price-to-earnings ratio (Keysight Technologies (KEYS) 44.2x, Teradyne (TER) 42.0x, Teledyne Technologies (TDY) 29.2x). On next year's consensus earnings, Teledyne Technologies (TDY) is cheapest (Keysight Technologies (KEYS) 29.4x, Teradyne (TER) 31.9x, 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?

Teradyne (TER) grew revenue fastest over the trailing twelve months: Keysight Technologies (KEYS) +25.5%, Teradyne (TER) +57.9%, Teledyne Technologies (TDY) +8.6%.

Which company is more profitable?

Teradyne (TER) has the highest net margin (Keysight Technologies (KEYS) 19.1%, Teradyne (TER) 25.8%, Teledyne Technologies (TDY) 15.8%). On return on invested capital, Teradyne (TER) leads (Keysight Technologies (KEYS) 13.4%, Teradyne (TER) 35.3%, Teledyne Technologies (TDY) 8.1%).

Which stock has performed better?

Over the past year Teradyne (TER) returned the most: Keysight Technologies (KEYS) +86.8%, Teradyne (TER) +112.9%, Teledyne Technologies (TDY) +16.6%. Over five years, Teradyne (TER) compounded fastest (Keysight Technologies (KEYS) +12.3%/yr, Teradyne (TER) +21.6%/yr, Teledyne Technologies (TDY) +7.0%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Teledyne Technologies (TDY) has been the steadiest (Keysight Technologies (KEYS) 45.0%, Teradyne (TER) 78.6%, Teledyne Technologies (TDY) 25.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, KEYS, TER 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, Teradyne (TER) 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.