ALGN vs MLSS vs DDD Stock Comparison

Align Technology, Milestone Scientific and 3D Systems Prices as of Oct 26, 2026 Peers: Industry group
ALGN Align Technology Inc
$152.26 +3.7% 1M +12.6% 1Y
Market cap
$10.87B
P/E
26.3x
Revenue (TTM)
$4.14B
Div. yield
–
Dental Healthcare
7 wins
DDD 3D Systems Corp
$2.95 -17.4% 1M -5.8% 1Y
Market cap
$450.63M
P/E
–
Revenue (TTM)
$387.64M
Div. yield
–
3D Printing Industrials

Head to Head

7 decided of 12

Align Technology leads on 7 of the 12 questions below (Align Technology 7). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionALGNMLSSDDDLeader
Larger companyMarket capitalisation $10.87B $28.89M $450.63M ALGN
Cheaper on earningsLower P/E, profitable companies only 26.3x — -8.2x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 13.9x — — –
Faster revenue growthRevenue growth, trailing twelve months +4.4% -27.5% -6.2% ALGN
More profitableNet margin, trailing twelve months 10.0% — -14.2% ALGN
Better return on capitalReturn on invested capital — — -17.8% –
Less leveragedLower net debt / EBITDA — — 1.0x –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +12.6% -26.6% -5.8% ALGN
Better 5-year returnAnnualised price return, 5 years -24.1%/yr -31.5%/yr -35.8%/yr ALGN
Less volatileAnnualised volatility, 1 year 39.2% 81.5% 84.2% ALGN
Higher overall scoreMean of the five percentile scores vs peers 66/100 — 31/100 ALGN

Percentile Scorecard

ALGNMLSSDDD

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

AxisALGNMLSSDDD
Valuation 88 #28 of 228 – 16 #170 of 203
Growth 22 #173 of 221 – 59 #78 of 187
Profitability 88 #25 of 208 – 11 #164 of 185
Financial Health 43 #137 of 239 – 65 #78 of 219
Shareholder Returns 89 #16 of 137 – 5 #145 of 153
Overall 66 – 31
  • ALGN ranked among 248 companies in Medical Devices and Diagnostics
  • MLSS ranked among 248 companies in Medical Devices and Diagnostics
  • DDD ranked among 222 companies in Machinery

Price Performance

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

Returns

PeriodALGNMLSSDDDSPY
1 month +3.7%-26.8%-17.4% -0.8%
3 months -9.4%-26.8%+12.2% +3.5%
6 months -17.6%-11.8%+33.5% +7.0%
Year to date -2.5%+9.9%+66.7% +12.2%
1 year +12.6%-26.6%-5.8% +13.0%
3 years -20.3%-66.3%-17.1% +86.3%
3 years, per year -7.3%-30.4%-6.1% +23.1%
5 years -74.8%-84.8%-89.1% +68.6%
5 years, per year -24.1%-31.5%-35.8% +11.0%
10 years +80.1%-83.8%-79.3% +258.0%
10 years, per year +6.1%-16.6%-14.6% +13.6%

Risk

MeasureALGNMLSSDDDSPY
Volatility, 1Y 39.2%81.5%84.2% 12.7%
Downside volatility, 1Y 37.1%83.3%75.4% 12.7%
Beta vs S&P 500, 1Y 1.301.282.82 1.00
Return / volatility, 1Y 0.32-0.33-0.07 1.02
Max drawdown, 5Y -82.4%-90.9%-96.0% -25.4%
From 52-week high -22.9%-45.5%-24.0% -1.8%
52-week high $197.51$0.55$3.88 $779.14
52-week low $131.91$0.25$1.77 $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.

MultipleALGNMLSSDDD
P/E now vs peer median 26.3xmedian 30.6x —median 30.6x -8.0xmedian 26.0x
P/S now vs peer median 2.6xmedian 3.0x 4.0xmedian 3.0x 1.3xmedian 1.9x
EV/EBITDA now vs peer median 12.2xmedian 17.5x —median 17.5x -11.7xmedian 14.0x
P/FCF now vs peer median 17.1xmedian 23.3x —median 23.3x -9.4xmedian 21.4x
P/B now vs peer median 2.6xmedian 2.4x —median 2.4x 1.8xmedian 2.2x
PEG now vs peer median 2.16median 0.87 —median 0.87 -0.30median 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 monthsALGNMLSSDDD
Revenue $4.14B $6.58M $387.64M
Gross profit $2.82B – $131.01M
Operating income $547.59M – -$61.26M
Net income $413.58M – -$54.85M
Free cash flow $633.57M – -$52.40M
R&D $377.00M – $47.60M
EPS (diluted) $5.78 – $-0.37
Cash & equivalents $1.10B – $127.95M
Total debt – – $91.18M
Shares (diluted) 71.52M 93.13M 148.97M
Enterprise value $6.61B $28.89M $46.42M

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
MetricALGNMLSSDDD
P/E 26.3x – -8.0x
P/FCF 17.1x – -9.4x
P/Operating cash flow 14.4x – -11.6x
P/S 2.6x 4.0x 1.3x
P/B 2.6x – 1.8x
P/Tangible book 2.6x – 1.9x
EV/EBITDA 12.2x – -11.7x
EV/EBIT 17.8x – -7.4x
EV/Revenue 2.4x 4.0x 1.2x
EV/FCF 15.4x – -8.7x
EV/Operating cash flow 12.9x – -10.7x
PEG (3Y EPS CAGR) 2.16 – -0.30

Growth

14 metrics
MetricALGNMLSSDDD
Revenue growth (1Y) 4.4% -27.5% -6.2%
Revenue CAGR (3Y) 3.5% -12.9% -9.0%
Gross profit growth (1Y) 1.8% – -9.6%
Gross profit CAGR (3Y) 2.6% – -13.8%
Operating income growth (1Y) -8.8% – 76.7%
Operating income CAGR (3Y) -0.8% – 21.6%
Net income growth (1Y) -5.5% – 62.1%
Net income CAGR (3Y) 9.6% – 23.3%
EPS growth (1Y) -4.1% – 53.6%
EPS CAGR (3Y) 12.2% – 26.7%
Operating cash flow growth (1Y) 3.4% – 38.0%
Operating cash flow CAGR (3Y) -4.3% – 18.5%
Free cash flow growth (1Y) 0.3% – 36.8%
Free cash flow CAGR (3Y) 1.2% – 20.0%

Profitability

14 metrics
MetricALGNMLSSDDD
Gross margin 68.0% – 33.8%
EBITDA margin 19.4% – -10.0%
Operating margin 13.2% – -15.8%
Pretax margin 13.7% – -11.7%
Net margin 10.0% – -14.2%
FCF margin 15.3% – -13.5%
Operating cash flow margin 18.3% – -10.9%
Return on equity 9.9% – -21.7%
Return on assets 6.5% – -10.5%
Return on invested capital – – -17.8%
Return on capital employed 12.3% – -14.7%
Asset turnover 0.7x – 0.7x
Cash conversion (OCF / net income) 1.8x – 0.8x
Stock comp / revenue 4.3% – 3.5%

Financial Health

11 metrics
MetricALGNMLSSDDD
Debt / assets – – 17.0%
Debt / equity – – 0.3x
Net debt / EBITDA – – 1.0x
Debt / FCF – – -1.7x
Liabilities / assets 34.0% – 48.9%
Equity / assets 66.0% – 51.1%
Interest coverage – – –
Current ratio 1.4x – 3.4x
Quick ratio 1.2x – 1.9x
Cash ratio 0.6x – 1.2x
Altman Z-score 4.61 – -1.48

Shareholder Returns

7 metrics
MetricALGNMLSSDDD
Dividend yield – – –
Net buyback yield 2.3% – -10.9%
Shareholder yield 2.3% – -10.9%
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.

ConsensusALGNMLSSDDD
Forward P/E 13.9xFY2026 – –
EPS, next fiscal year $10.95FY2026 $-0.04FY2026 $-0.14FY2026
EPS growth, next FY +4.2%FY2026 – –
EPS growth, the year after +16.3% – –
Revenue, next fiscal year $3.86BFY2026 $9.29MFY2026 $368.77MFY2026
Revenue growth, next FY -4.2%FY2026 +3.6%FY2026 -4.7%FY2026
Revenue growth, the year after +3.5% +27.1% +7.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersALGNMLSSDDD
Held by institutions 100.0% 5.8% 71.1%
Institutions holding 675 31 210
Change in shares held, QoQ +4.2% +18.9% +34.8%
Institutions buying 292 11 126
Institutions selling 268 4 37
Buyers to sellers 1.09 2.75 3.41

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.

ALGNMLSSDDD
ALGN 1.00 0.20 0.18
MLSS 0.20 1.00 0.07
DDD 0.18 0.07 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ALGN, MLSS and DDD?

Align Technology (ALGN) is the largest by market capitalisation: Align Technology (ALGN) $10.87B, Milestone Scientific (MLSS) $28.89M, 3D Systems (DDD) $450.63M.

Which company is growing faster?

Align Technology (ALGN) grew revenue fastest over the trailing twelve months: Align Technology (ALGN) +4.4%, Milestone Scientific (MLSS) -27.5%, 3D Systems (DDD) -6.2%.

Which company is more profitable?

Align Technology (ALGN) has the highest net margin (Align Technology (ALGN) 10.0%, 3D Systems (DDD) -14.2%).

Which stock has performed better?

Over the past year Align Technology (ALGN) returned the most: Align Technology (ALGN) +12.6%, Milestone Scientific (MLSS) -26.6%, 3D Systems (DDD) -5.8%. Over five years, Align Technology (ALGN) compounded fastest (Align Technology (ALGN) -24.1%/yr, Milestone Scientific (MLSS) -31.5%/yr, 3D Systems (DDD) -35.8%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Align Technology (ALGN) has been the steadiest (Align Technology (ALGN) 39.2%, Milestone Scientific (MLSS) 81.5%, 3D Systems (DDD) 84.2%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ALGN, MLSS and DDD?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Align Technology (ALGN) leads on 7. 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.