AEIS vs ETN vs FSS Stock Comparison

Advanced Energy Industries, Eaton and Federal Signal Prices as of Oct 28, 2026 Peers: Industry group
ETN Eaton Corp plc
$393.05 -8.9% 1M +4.5% 1Y
Market cap
$152.20B
P/E
39.7x
Revenue (TTM)
$30.03B
Div. yield
–
Electrical Equipment Industrials
2 wins
FSS Federal Signal Corp /De/
$113.43 -1.4% 1M -9.9% 1Y
Market cap
$7.00B
P/E
24.5x
Revenue (TTM)
$2.45B
Div. yield
0.01%
Heavy Equipment Industrials
5 wins

Head to Head

11 decided of 12

Federal Signal leads on 5 of the 12 questions below (Federal Signal 5, Advanced Energy Industries 4, Eaton 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAEISETNFSSLeader
Larger companyMarket capitalisation $9.32B $152.20B $7.00B ETN
Cheaper on earningsLower P/E, profitable companies only 42.5x 39.7x 24.5x FSS
Cheaper on forward earningsLower price / next fiscal year consensus EPS 22.6x 28.3x 23.1x AEIS
Faster revenue growthRevenue growth, trailing twelve months +24.6% +15.5% +24.0% AEIS
More profitableNet margin, trailing twelve months 10.8% 12.8% 11.7% ETN
Better return on capitalReturn on invested capital 10.3% 10.3% 15.3% FSS
Less leveragedLower net debt / EBITDA -0.4x 3.1x 0.8x AEIS
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.01% –
Better 1-year returnPrice return, last 12 months +18.4% +4.5% -9.9% AEIS
Better 5-year returnAnnualised price return, 5 years +21.4%/yr +19.0%/yr +21.5%/yr FSS
Less volatileAnnualised volatility, 1 year 65.2% 40.7% 35.0% FSS
Higher overall scoreMean of the five percentile scores vs peers 45/100 45/100 76/100 FSS

Percentile Scorecard

AEISETNFSS

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

AxisAEISETNFSS
Valuation 12 #178 of 203 14 #175 of 203 54 #95 of 203
Growth 77 #45 of 188 74 #50 of 188 94 #13 of 188
Profitability 54 #85 of 184 74 #49 of 184 91 #18 of 184
Financial Health 61 #85 of 217 20 #173 of 217 76 #53 of 217
Shareholder Returns 20 #122 of 153 43 #87 of 153 66 #53 of 153
Overall 45 45 76
  • AEIS ranked among 222 companies in Machinery
  • ETN ranked among 222 companies in Machinery
  • FSS ranked among 222 companies in Machinery

Price Performance

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

Returns

PeriodAEISETNFSSSPY
1 month -12.8%-8.9%-1.4% +0.9%
3 months -4.0%+8.6%+1.3% +5.9%
6 months -32.9%-4.3%-6.6% +8.5%
Year to date +15.7%+23.4%+4.5% +13.3%
1 year +18.4%+4.5%-9.9% +12.4%
3 years +175.9%+101.2%+98.1% +88.1%
3 years, per year +40.3%+26.3%+25.6% +23.5%
5 years +163.9%+138.6%+165.0% +68.2%
5 years, per year +21.4%+19.0%+21.5% +11.0%
10 years +411.8%+530.1%+834.3% +263.4%
10 years, per year +17.7%+20.2%+25.0% +13.8%

Risk

MeasureAEISETNFSSSPY
Volatility, 1Y 65.2%40.7%35.0% 12.7%
Downside volatility, 1Y 67.7%43.8%35.9% 12.7%
Beta vs S&P 500, 1Y 2.741.871.28 1.00
Return / volatility, 1Y 0.280.11-0.28 0.98
Max drawdown, 5Y -44.3%-34.7%-33.3% -25.4%
From 52-week high -37.7%-14.5%-15.2% -0.9%
52-week high $389.05$459.94$133.73 $779.14
52-week low $188.88$315.82$104.77 $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.

MultipleAEISETNFSS
P/E now vs peer median 43.0xmedian 25.4x 39.9xmedian 25.4x 24.2xmedian 25.4x
P/S now vs peer median 4.8xmedian 1.9x 5.1xmedian 1.9x 2.8xmedian 1.9x
EV/EBITDA now vs peer median 28.5xmedian 14.3x 26.5xmedian 14.3x 15.1xmedian 14.3x
P/FCF now vs peer median 110.8xmedian 21.8x 38.8xmedian 21.8x 20.4xmedian 21.8x
P/B now vs peer median 6.7xmedian 2.2x 7.5xmedian 2.2x 4.6xmedian 2.2x
PEG now vs peer median 11.70median 1.41 3.00median 1.41 0.85median 1.41

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 monthsAEISETNFSS
Revenue $2.04B $30.03B $2.45B
Gross profit $800.50M $10.78B $714.00M
Operating income $269.20M $5.32B $395.40M
Net income $219.40M $3.83B $285.40M
Free cash flow $87.50M $3.93B $339.20M
R&D $246.60M $844.00M –
EPS (diluted) $5.19 $9.83 $4.64
Cash & equivalents $1.40B $483.00M $62.80M
Total debt $3.30B $20.61B $453.60M
Shares (diluted) 42.30M 389.50M 61.50M
Enterprise value $5.68B $149.39B $6.75B

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
MetricAEISETNFSS
P/E 43.0x 39.9x 24.2x
P/FCF 110.8x 38.8x 20.4x
P/Operating cash flow 40.6x 30.8x 18.6x
P/S 4.8x 5.1x 2.8x
P/B 6.7x 7.5x 4.6x
P/Tangible book 7.2x 19.9x 6.2x
EV/EBITDA 28.5x 26.5x 15.1x
EV/EBIT 35.5x 32.5x 18.5x
EV/Revenue 4.7x 5.7x 3.0x
EV/FCF 109.3x 43.9x 21.6x
EV/Operating cash flow 40.0x 34.9x 19.6x
PEG (3Y EPS CAGR) 11.70 3.00 0.85

Growth

14 metrics
MetricAEISETNFSS
Revenue growth (1Y) 24.6% 15.5% 24.0%
Revenue CAGR (3Y) 3.3% 10.8% 16.1%
Gross profit growth (1Y) 32.8% 8.7% 24.5%
Gross profit CAGR (3Y) 6.0% 12.3% 22.1%
Operating income growth (1Y) 216.7% 8.7% 27.8%
Operating income CAGR (3Y) 9.4% 15.9% 28.8%
Net income growth (1Y) 161.5% -2.4% 28.8%
Net income CAGR (3Y) 7.6% 12.2% 28.6%
EPS growth (1Y) 133.8% -2.0% 28.4%
EPS CAGR (3Y) 3.7% 13.3% 28.6%
Operating cash flow growth (1Y) 23.3% 21.9% 45.6%
Operating cash flow CAGR (3Y) 7.6% 14.1% 59.2%
Free cash flow growth (1Y) -30.8% 20.1% 49.8%
Free cash flow CAGR (3Y) -11.1% 13.3% 73.3%

Profitability

14 metrics
MetricAEISETNFSS
Gross margin 39.3% 35.9% 29.2%
EBITDA margin 16.5% 21.7% 19.8%
Operating margin 13.2% 17.7% 16.2%
Pretax margin 12.1% 16.1% 15.2%
Net margin 10.8% 12.8% 11.7%
FCF margin 4.3% 13.1% 13.9%
Operating cash flow margin 11.7% 16.5% 15.2%
Return on equity 15.4% 19.1% 19.4%
Return on assets 7.3% 6.9% 11.7%
Return on invested capital 10.3% 10.3% 15.3%
Return on capital employed 11.3% 12.2% 18.5%
Asset turnover 0.7x 0.5x 1.0x
Cash conversion (OCF / net income) 1.1x 1.3x 1.3x
Stock comp / revenue 3.4% – 0.6%

Financial Health

11 metrics
MetricAEISETNFSS
Debt / assets 36.9% 36.7% 18.6%
Debt / equity 0.9x 1.0x 0.3x
Net debt / EBITDA -0.4x 3.1x 0.8x
Debt / FCF 14.4x 5.2x 1.3x
Liabilities / assets 57.5% 63.9% 38.2%
Equity / assets 42.5% 36.1% 61.8%
Interest coverage 17.1x 12.0x 19.3x
Current ratio 3.8x 1.2x 2.7x
Quick ratio 2.8x 0.7x 1.1x
Cash ratio 2.2x 0.1x 0.2x
Altman Z-score 4.93 3.75 7.10

Shareholder Returns

7 metrics
MetricAEISETNFSS
Dividend yield 0.2% 1.1% 0.5%
Net buyback yield 0.1% 0.3% 0.0%
Shareholder yield 0.2% 1.4% 0.5%
Payout ratio (earnings) – – 12.6%
Payout ratio (FCF) – – 10.6%
Dividend growth (1Y) – – 13.6%
Dividend CAGR (3Y) – – 17.0%

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.

ConsensusAEISETNFSS
Forward P/E 22.6xFY2026 28.3xFY2026 23.1xFY2026
EPS, next fiscal year $10.74FY2026 $13.88FY2026 $4.92FY2026
EPS growth, next FY +67.6%FY2026 +15.0%FY2026 +16.3%FY2026
EPS growth, the year after +37.5% +14.4% +10.0%
Revenue, next fiscal year $2.55BFY2026 $31.83BFY2026 $2.79BFY2026
Revenue growth, next FY +41.5%FY2026 +16.0%FY2026 +28.1%FY2026
Revenue growth, the year after +25.2% +21.7% -5.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAEISETNFSS
Held by institutions 100.0% 84.7% 100.0%
Institutions holding 678 2,642 474
Change in shares held, QoQ -2.0% +1.6% +3.9%
Institutions buying 388 1,399 249
Institutions selling 218 892 152
Buyers to sellers 1.78 1.57 1.64

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.

AEISETNFSS
AEIS 1.00 0.72 0.40
ETN 0.72 1.00 0.43
FSS 0.40 0.43 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AEIS, ETN and FSS?

Eaton (ETN) is the largest by market capitalisation: Advanced Energy Industries (AEIS) $9.32B, Eaton (ETN) $152.20B, Federal Signal (FSS) $7.00B.

Which stock is cheaper, AEIS, ETN and FSS?

Federal Signal (FSS) trades on the lowest price-to-earnings ratio (Advanced Energy Industries (AEIS) 42.5x, Eaton (ETN) 39.7x, Federal Signal (FSS) 24.5x). On next year's consensus earnings, Advanced Energy Industries (AEIS) is cheapest (Advanced Energy Industries (AEIS) 22.6x, Eaton (ETN) 28.3x, Federal Signal (FSS) 23.1x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Advanced Energy Industries (AEIS) grew revenue fastest over the trailing twelve months: Advanced Energy Industries (AEIS) +24.6%, Eaton (ETN) +15.5%, Federal Signal (FSS) +24.0%.

Which company is more profitable?

Eaton (ETN) has the highest net margin (Advanced Energy Industries (AEIS) 10.8%, Eaton (ETN) 12.8%, Federal Signal (FSS) 11.7%). On return on invested capital, Federal Signal (FSS) leads (Advanced Energy Industries (AEIS) 10.3%, Eaton (ETN) 10.3%, Federal Signal (FSS) 15.3%).

Which stock has performed better?

Over the past year Advanced Energy Industries (AEIS) returned the most: Advanced Energy Industries (AEIS) +18.4%, Eaton (ETN) +4.5%, Federal Signal (FSS) -9.9%. Over five years, Federal Signal (FSS) compounded fastest (Advanced Energy Industries (AEIS) +21.4%/yr, Eaton (ETN) +19.0%/yr, Federal Signal (FSS) +21.5%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Advanced Energy Industries (AEIS) 0.00%, Eaton (ETN) 0.00%, Federal Signal (FSS) 0.01%. Advanced Energy Industries (AEIS) and Eaton (ETN) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Federal Signal (FSS) has been the steadiest (Advanced Energy Industries (AEIS) 65.2%, Eaton (ETN) 40.7%, Federal Signal (FSS) 35.0%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AEIS, ETN and FSS?

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