ECL vs KSCP vs ERII Stock Comparison

Ecolab, Knightscope and Energy Recovery Prices as of Oct 29, 2026 Peers: Industry group
ECL Ecolab Inc.
$300.86 +8.3% 1M +16.9% 1Y
Market cap
$84.39B
P/E
40.5x
Revenue (TTM)
$17.37B
Div. yield
0.97%
Water Treatment Industrials
4 wins
KSCP Knightscope, Inc.
$0.51 -37.0% 1M -90.5% 1Y
Market cap
$12.05M
P/E
–
Revenue (TTM)
$20.71M
Div. yield
–
Security Services Industrials
2 wins
ERII Energy Recovery, Inc.
$7.12 +5.5% 1M -58.5% 1Y
Market cap
$364.36M
P/E
23.9x
Revenue (TTM)
$120.57M
Div. yield
–
Water Treatment Industrials
3 wins

Head to Head

9 decided of 12

Ecolab leads on 4 of the 12 questions below (Ecolab 4, Energy Recovery 3, Knightscope 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionECLKSCPERIILeader
Larger companyMarket capitalisation $84.39B $12.05M $364.36M ECL
Cheaper on earningsLower P/E, profitable companies only 40.5x -0.2x 23.9x ERII
Cheaper on forward earningsLower price / next fiscal year consensus EPS 38.1x — — –
Faster revenue growthRevenue growth, trailing twelve months +9.3% +88.0% -15.0% KSCP
More profitableNet margin, trailing twelve months 12.0% -217.3% 12.7% ERII
Better return on capitalReturn on invested capital 10.0% — — –
Less leveragedLower net debt / EBITDA 3.1x 0.1x — KSCP
Higher dividend yieldTrailing dividend yield 0.97% — — –
Better 1-year returnPrice return, last 12 months +16.9% -90.5% -58.5% ECL
Better 5-year returnAnnualised price return, 5 years +6.3%/yr — -18.9%/yr ECL
Less volatileAnnualised volatility, 1 year 21.2% 109.1% 63.8% ECL
Higher overall scoreMean of the five percentile scores vs peers 64/100 30/100 91/100 ERII

Percentile Scorecard

ECLKSCPERII

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

AxisECLKSCPERII
Valuation 50 #11 of 21 21 #89 of 113 95 #2 of 21
Growth 83 #4 of 19 38 #60 of 96 72 #6 of 19
Profitability 93 #2 of 16 2 #89 of 91 87 #3 of 16
Financial Health 25 #16 of 21 60 #49 of 122 100 #1 of 21
Shareholder Returns 67 #4 of 10 – 100 #1 of 10
Overall 64 30 91
  • ECL ranked among 22 companies in Environmental Equipment
  • KSCP ranked among 130 companies in Business Services
  • ERII ranked among 22 companies in Environmental Equipment

Price Performance

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

Returns

PeriodECLKSCPERIISPY
1 month +8.3%-37.0%+5.5% +0.7%
3 months +7.7%-74.4%-15.5% +3.7%
6 months +15.4%-83.8%-35.7% +7.1%
Year to date +14.6%-86.3%-47.2% +12.8%
1 year +16.9%-90.5%-58.5% +11.9%
3 years +89.0%-98.5%-49.7% +85.2%
3 years, per year +23.7%-75.5%-20.5% +22.8%
5 years +35.4%—-65.0% +67.6%
5 years, per year +6.3%—-18.9% +10.9%
10 years +161.4%—-43.1% +262.0%
10 years, per year +10.1%—-5.5% +13.7%

Risk

MeasureECLKSCPERIISPY
Volatility, 1Y 21.2%109.1%63.8% 12.7%
Downside volatility, 1Y 20.4%103.4%82.6% 12.6%
Beta vs S&P 500, 1Y 0.482.691.70 1.00
Return / volatility, 1Y 0.79-0.83-0.92 0.94
Max drawdown, 5Y -44.3%-100.0%-78.3% -25.4%
From 52-week high -2.4%-90.8%-58.7% -1.2%
52-week high $308.35$5.53$17.26 $779.14
52-week low $245.73$0.50$6.64 $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.

MultipleECLKSCPERII
P/E now vs peer median 40.5xmedian 25.4x -0.2xmedian 21.9x 23.9xmedian 25.4x
P/S now vs peer median 4.9xmedian 2.5x 0.6xmedian 0.9x 3.0xmedian 2.5x
EV/EBITDA now vs peer median 24.3xmedian 17.9x -0.2xmedian 11.9x 15.0xmedian 17.9x
P/FCF now vs peer median 47.0xmedian 22.3x -0.3xmedian 14.4x 9.4xmedian 22.3x
P/B now vs peer median 8.1xmedian 1.8x 0.4xmedian 2.4x 2.1xmedian 1.8x
PEG now vs peer median 2.04median 1.73 0.00median 0.97 1.43median 1.73

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 monthsECLKSCPERII
Revenue $17.37B $20.71M $120.57M
Gross profit $7.63B -$2.06M $77.18M
Operating income $2.90B -$44.22M $14.23M
Net income $2.10B -$45.00M $15.34M
Free cash flow $1.80B -$42.45M $38.60M
R&D – $18.98M $12.22M
EPS (diluted) $7.38 $-2.51 $0.30
Cash & equivalents $722.30M $8.20M $61.44M
Total debt $13.19B $4.39M –
Shares (diluted) 282.10M 17.93M 51.46M
Enterprise value $77.40B -$48.56M $39.53M

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
MetricECLKSCPERII
P/E 40.5x -0.2x 23.9x
P/FCF 47.0x -0.3x 9.4x
P/Operating cash flow 27.9x -0.3x 8.8x
P/S 4.9x 0.6x 3.0x
P/B 8.1x 0.4x 2.1x
P/Tangible book 15.8x 0.9x 2.1x
EV/EBITDA 24.3x -0.2x 15.0x
EV/EBIT 33.4x -0.2x 19.1x
EV/Revenue 5.6x 0.4x 2.3x
EV/FCF 54.0x -0.2x 7.0x
EV/Operating cash flow 32.0x -0.2x 6.6x
PEG (3Y EPS CAGR) 2.04 0.00 1.43

Growth

14 metrics
MetricECLKSCPERII
Revenue growth (1Y) 9.3% 88.0% -15.0%
Revenue CAGR (3Y) 4.9% 27.0% 4.1%
Gross profit growth (1Y) 8.4% 38.7% -18.5%
Gross profit CAGR (3Y) 8.8% 3.4% 2.0%
Operating income growth (1Y) 11.3% -59.4% -34.1%
Operating income CAGR (3Y) 17.2% -15.1% 17.3%
Net income growth (1Y) 4.7% -44.7% -36.4%
Net income CAGR (3Y) 18.8% -23.0% 13.3%
EPS growth (1Y) 6.2% 43.5% -32.7%
EPS CAGR (3Y) 19.8% 50.8% 16.8%
Operating cash flow growth (1Y) 15.2% -91.8% 98.7%
Operating cash flow CAGR (3Y) 7.8% -24.3% 62.2%
Free cash flow growth (1Y) 15.6% -95.5% 91.3%
Free cash flow CAGR (3Y) 1.8% -24.2% 76.4%

Profitability

14 metrics
MetricECLKSCPERII
Gross margin 43.9% -9.9% 64.0%
EBITDA margin 22.9% -197.3% 15.0%
Operating margin 16.7% -213.5% 11.8%
Pretax margin 15.0% -217.3% 14.6%
Net margin 12.0% -217.3% 12.7%
FCF margin 10.3% -205.0% 32.0%
Operating cash flow margin 17.4% -200.8% 34.2%
Return on equity 20.4% -141.5% 8.6%
Return on assets 6.9% -77.9% 7.5%
Return on invested capital 10.0% – –
Return on capital employed 12.0% -103.5% 7.7%
Asset turnover 0.6x 0.4x 0.6x
Cash conversion (OCF / net income) 1.4x 0.9x 2.7x
Stock comp / revenue 0.8% 6.5% 5.9%

Financial Health

11 metrics
MetricECLKSCPERII
Debt / assets 42.4% 7.9% –
Debt / equity 1.3x 0.1x –
Net debt / EBITDA 3.1x 0.1x –
Debt / FCF 7.3x -0.1x –
Liabilities / assets 66.4% 47.1% 12.8%
Equity / assets 33.6% 52.9% 87.2%
Interest coverage 8.0x – –
Current ratio 1.1x 1.2x 8.1x
Quick ratio 0.7x 0.8x 5.8x
Cash ratio 0.1x 0.5x 5.0x
Altman Z-score 3.96 -8.21 11.10

Shareholder Returns

7 metrics
MetricECLKSCPERII
Dividend yield 1.0% – –
Net buyback yield 1.1% – 9.4%
Shareholder yield 2.1% – 9.4%
Payout ratio (earnings) 39.0% – –
Payout ratio (FCF) 45.6% – –
Dividend growth (1Y) 12.7% – –
Dividend CAGR (3Y) 9.7% – –

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.

ConsensusECLKSCPERII
Forward P/E 38.1xFY2026 – –
EPS, next fiscal year $7.90FY2026 $-2.65FY2026 $-0.20FY2026
EPS growth, next FY +4.9%FY2026 – -147.6%FY2026
EPS growth, the year after +23.2% – –
Revenue, next fiscal year $17.26BFY2026 $34.99MFY2026 $69.90MFY2026
Revenue growth, next FY +7.3%FY2026 +209.6%FY2026 -48.2%FY2026
Revenue growth, the year after +5.4% +18.0% +45.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersECLKSCPERII
Held by institutions 80.0% 6.3% 85.0%
Institutions holding 1,712 62 197
Change in shares held, QoQ +1.4% +6.1% -1.1%
Institutions buying 764 29 120
Institutions selling 679 6 45
Buyers to sellers 1.13 4.83 2.67

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.

ECLKSCPERII
ECL 1.00 0.00 0.23
KSCP 0.00 1.00 0.07
ERII 0.23 0.07 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ECL, KSCP and ERII?

Ecolab (ECL) is the largest by market capitalisation: Ecolab (ECL) $84.39B, Knightscope (KSCP) $12.05M, Energy Recovery (ERII) $364.36M.

Which stock is cheaper, ECL, KSCP and ERII?

Energy Recovery (ERII) trades on the lowest price-to-earnings ratio (Ecolab (ECL) 40.5x, Knightscope (KSCP) -0.2x, Energy Recovery (ERII) 23.9x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Knightscope (KSCP) grew revenue fastest over the trailing twelve months: Ecolab (ECL) +9.3%, Knightscope (KSCP) +88.0%, Energy Recovery (ERII) -15.0%.

Which company is more profitable?

Energy Recovery (ERII) has the highest net margin (Ecolab (ECL) 12.0%, Knightscope (KSCP) -217.3%, Energy Recovery (ERII) 12.7%).

Which stock has performed better?

Over the past year Ecolab (ECL) returned the most: Ecolab (ECL) +16.9%, Knightscope (KSCP) -90.5%, Energy Recovery (ERII) -58.5%. Over five years, Ecolab (ECL) compounded fastest (Ecolab (ECL) +6.3%/yr, Energy Recovery (ERII) -18.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Ecolab (ECL) 0.97%. Knightscope (KSCP) and Energy Recovery (ERII) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Ecolab (ECL) has been the steadiest (Ecolab (ECL) 21.2%, Knightscope (KSCP) 109.1%, Energy Recovery (ERII) 63.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ECL, KSCP and ERII?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Ecolab (ECL) leads on 4. 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.