TER vs ROK vs EMR Stock Comparison

Teradyne, Rockwell Automation and Emerson Electric Prices as of Oct 26, 2026 Peers: Industry group
TER Teradyne, Inc
$309.00 -22.4% 1M +114.2% 1Y
Market cap
$50.98B
P/E
44.3x
Revenue (TTM)
$4.46B
Div. yield
–
Test and Measurement Technology
6 wins
ROK Rockwell Automation, Inc
$429.70 -1.0% 1M +20.5% 1Y
Market cap
$48.75B
P/E
40.6x
Revenue (TTM)
$8.97B
Div. yield
–
Industrial Machinery Industrials
2 wins
EMR Emerson Electric Co
$161.75 +2.3% 1M +21.9% 1Y
Market cap
$92.93B
P/E
36.0x
Revenue (TTM)
$18.64B
Div. yield
0.01%
Pumps and Valves Industrials
3 wins

Head to Head

11 decided of 12

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

QuestionTERROKEMRLeader
Larger companyMarket capitalisation $50.98B $48.75B $92.93B EMR
Cheaper on earningsLower P/E, profitable companies only 44.3x 40.6x 36.0x EMR
Cheaper on forward earningsLower price / next fiscal year consensus EPS 32.0x 34.4x 24.0x EMR
Faster revenue growthRevenue growth, trailing twelve months +57.9% +11.3% +4.8% TER
More profitableNet margin, trailing twelve months 25.8% 13.4% 13.8% TER
Better return on capitalReturn on invested capital 35.3% 21.0% 10.9% TER
Less leveragedLower net debt / EBITDA — 1.3x 1.8x ROK
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.01% –
Better 1-year returnPrice return, last 12 months +114.2% +20.5% +21.9% TER
Better 5-year returnAnnualised price return, 5 years +20.2%/yr +6.5%/yr +11.0%/yr TER
Less volatileAnnualised volatility, 1 year 78.7% 31.3% 31.7% ROK
Higher overall scoreMean of the five percentile scores vs peers 65/100 54/100 45/100 TER

Percentile Scorecard

TERROKEMR

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

AxisTERROKEMR
Valuation 22 #87 of 111 15 #173 of 203 35 #133 of 203
Growth 89 #13 of 108 52 #91 of 187 40 #112 of 187
Profitability 93 #8 of 104 95 #11 of 185 85 #29 of 185
Financial Health 71 #34 of 115 33 #148 of 219 29 #155 of 219
Shareholder Returns 51 #40 of 81 75 #39 of 153 36 #98 of 153
Overall 65 54 45
  • TER ranked among 121 companies in Computer Hardware
  • ROK ranked among 222 companies in Machinery
  • EMR ranked among 222 companies in Machinery

Price Performance

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

Returns

PeriodTERROKEMRSPY
1 month -22.4%-1.0%+2.3% -0.8%
3 months -7.7%-7.8%+8.3% +3.5%
6 months -23.1%+5.6%+14.3% +7.0%
Year to date +59.6%+10.4%+21.9% +12.2%
1 year +114.2%+20.5%+21.9% +13.0%
3 years +268.6%+64.0%+83.7% +86.3%
3 years, per year +54.5%+17.9%+22.5% +23.1%
5 years +151.1%+37.0%+68.2% +68.6%
5 years, per year +20.2%+6.5%+11.0% +11.0%
10 years +1,303.3%+256.2%+220.7% +258.0%
10 years, per year +30.2%+13.5%+12.4% +13.6%

Risk

MeasureTERROKEMRSPY
Volatility, 1Y 78.7%31.3%31.7% 12.7%
Downside volatility, 1Y 85.3%31.8%33.5% 12.7%
Beta vs S&P 500, 1Y 3.371.401.53 1.00
Return / volatility, 1Y 1.450.660.69 1.02
Max drawdown, 5Y -59.7%-45.6%-29.9% -25.4%
From 52-week high -36.1%-13.2%-1.6% -1.8%
52-week high $483.84$495.08$164.37 $779.14
52-week low $144.38$348.51$123.30 $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.

MultipleTERROKEMR
P/E now vs peer median 42.0xmedian 32.0x 39.7xmedian 26.0x 35.1xmedian 26.0x
P/S now vs peer median 10.8xmedian 2.8x 5.3xmedian 1.9x 4.8xmedian 1.9x
EV/EBITDA now vs peer median 32.0xmedian 19.4x 24.1xmedian 14.0x 16.4xmedian 14.0x
P/FCF now vs peer median 62.8xmedian 29.0x 31.7xmedian 21.4x 26.1xmedian 21.4x
P/B now vs peer median 13.9xmedian 2.9x 13.6xmedian 2.2x 4.4xmedian 2.2x
PEG now vs peer median 1.45median 1.13 -9.05median 1.26 -0.84median 1.26

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 monthsTERROKEMR
Revenue $4.46B $8.97B $18.64B
Gross profit $2.64B $4.41B $9.91B
Operating income $1.35B $1.77B $4.68B
Net income $1.15B $1.20B $2.58B
Free cash flow $769.75M $1.50B $3.46B
R&D $559.87M $716.00M –
EPS (diluted) $7.29 $10.76 $4.59
Cash & equivalents $349.54M $479.00M $2.18B
Total debt – $13.81B $13.11B
Shares (diluted) 157.69M 111.60M 561.10M
Enterprise value $49.76B $46.93B $85.67B

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
MetricTERROKEMR
P/E 42.0x 39.7x 35.1x
P/FCF 62.8x 31.7x 26.1x
P/Operating cash flow 45.4x 27.6x 23.1x
P/S 10.8x 5.3x 4.8x
P/B 13.9x 13.6x 4.4x
P/Tangible book 14.3x 17.1x 7.7x
EV/EBITDA 32.0x 24.1x 16.4x
EV/EBIT 35.5x 28.5x 21.6x
EV/Revenue 10.7x 5.6x 5.4x
EV/FCF 62.3x 33.6x 29.2x
EV/Operating cash flow 45.0x 29.2x 25.8x
PEG (3Y EPS CAGR) 1.45 -9.05 -0.84

Growth

14 metrics
MetricTERROKEMR
Revenue growth (1Y) 57.9% 11.3% 4.8%
Revenue CAGR (3Y) 16.0% 1.3% 7.6%
Gross profit growth (1Y) 58.2% 1.9% 5.7%
Gross profit CAGR (3Y) 16.7% 7.5% 11.0%
Operating income growth (1Y) 160.9% -7.1% 9.2%
Operating income CAGR (3Y) 28.8% 2.9% 13.6%
Net income growth (1Y) 145.2% 23.8% -3.0%
Net income CAGR (3Y) 27.2% -5.5% -42.0%
EPS growth (1Y) 149.0% 25.2% -2.2%
EPS CAGR (3Y) 29.0% -4.4% -41.6%
Operating cash flow growth (1Y) 34.4% 13.8% 4.4%
Operating cash flow CAGR (3Y) 19.9% 22.8% 10.1%
Free cash flow growth (1Y) 38.4% 13.9% 4.4%
Free cash flow CAGR (3Y) 18.5% 23.6% 9.4%

Profitability

14 metrics
MetricTERROKEMR
Gross margin 59.2% 49.1% 53.2%
EBITDA margin 33.5% 23.3% 33.1%
Operating margin 30.2% 19.7% 25.1%
Pretax margin 30.2% 14.7% 17.6%
Net margin 25.8% 13.4% 13.8%
FCF margin 17.2% 16.8% 18.6%
Operating cash flow margin 23.9% 19.3% 21.0%
Return on equity 35.2% 30.9% 12.7%
Return on assets 24.9% 9.8% 6.1%
Return on invested capital 35.3% 21.0% 10.9%
Return on capital employed 37.8% 23.6% 14.9%
Asset turnover 1.0x 0.8x 0.4x
Cash conversion (OCF / net income) 0.9x 1.4x 1.5x
Stock comp / revenue 1.7% 1.0% 1.3%

Financial Health

11 metrics
MetricTERROKEMR
Debt / assets – 29.4% 31.1%
Debt / equity – 0.9x 0.6x
Net debt / EBITDA – 1.3x 1.8x
Debt / FCF – 2.2x 3.8x
Liabilities / assets 29.5% 68.5% 51.7%
Equity / assets 70.5% 31.5% 48.3%
Interest coverage 118.8x 12.8x –
Current ratio 2.1x 1.1x 0.9x
Quick ratio 1.3x 0.7x 0.5x
Cash ratio 0.3x 0.1x 0.2x
Altman Z-score 22.48 5.88 4.64

Shareholder Returns

7 metrics
MetricTERROKEMR
Dividend yield 0.2% 1.3% 1.4%
Net buyback yield 1.0% 1.5% 1.0%
Shareholder yield 1.1% 2.8% 2.4%
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.

ConsensusTERROKEMR
Forward P/E 32.0xFY2026 34.4xFY2026 24.0xFY2026
EPS, next fiscal year $9.65FY2026 $12.50FY2026 $6.75FY2026
EPS growth, next FY +143.7%FY2026 +18.7%FY2026 +12.5%FY2026
EPS growth, the year after +25.7% +12.3% +15.3%
Revenue, next fiscal year $5.01BFY2026 $8.50BFY2026 $18.13BFY2026
Revenue growth, next FY +57.1%FY2026 +1.9%FY2026 +0.6%FY2026
Revenue growth, the year after +18.9% +19.4% +15.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersTERROKEMR
Held by institutions 97.3% 89.2% 82.1%
Institutions holding 1,419 1,540 2,290
Change in shares held, QoQ +5.2% +3.5% +0.9%
Institutions buying 828 805 1,080
Institutions selling 456 437 798
Buyers to sellers 1.82 1.84 1.35

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.

TERROKEMR
TER 1.00 0.50 0.52
ROK 0.50 1.00 0.70
EMR 0.52 0.70 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, TER, ROK and EMR?

Emerson Electric (EMR) is the largest by market capitalisation: Teradyne (TER) $50.98B, Rockwell Automation (ROK) $48.75B, Emerson Electric (EMR) $92.93B.

Which stock is cheaper, TER, ROK and EMR?

Emerson Electric (EMR) trades on the lowest price-to-earnings ratio (Teradyne (TER) 44.3x, Rockwell Automation (ROK) 40.6x, Emerson Electric (EMR) 36.0x). On next year's consensus earnings, Emerson Electric (EMR) is cheapest (Teradyne (TER) 32.0x, Rockwell Automation (ROK) 34.4x, Emerson Electric (EMR) 24.0x). 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: Teradyne (TER) +57.9%, Rockwell Automation (ROK) +11.3%, Emerson Electric (EMR) +4.8%.

Which company is more profitable?

Teradyne (TER) has the highest net margin (Teradyne (TER) 25.8%, Rockwell Automation (ROK) 13.4%, Emerson Electric (EMR) 13.8%). On return on invested capital, Teradyne (TER) leads (Teradyne (TER) 35.3%, Rockwell Automation (ROK) 21.0%, Emerson Electric (EMR) 10.9%).

Which stock has performed better?

Over the past year Teradyne (TER) returned the most: Teradyne (TER) +114.2%, Rockwell Automation (ROK) +20.5%, Emerson Electric (EMR) +21.9%. Over five years, Teradyne (TER) compounded fastest (Teradyne (TER) +20.2%/yr, Rockwell Automation (ROK) +6.5%/yr, Emerson Electric (EMR) +11.0%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Teradyne (TER) 0.00%, Rockwell Automation (ROK) 0.00%, Emerson Electric (EMR) 0.01%. Teradyne (TER) and Rockwell Automation (ROK) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Rockwell Automation (ROK) has been the steadiest (Teradyne (TER) 78.7%, Rockwell Automation (ROK) 31.3%, Emerson Electric (EMR) 31.7%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, TER, ROK and EMR?

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 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.