MLSS vs DDD vs ALGN Stock Comparison

Milestone Scientific, 3D Systems and Align Technology Prices as of Oct 28, 2026 Peers: Industry group
DDD 3D Systems Corp
$2.98 -15.3% 1M -6.6% 1Y
Market cap
$436.48M
P/E
–
Revenue (TTM)
$387.64M
Div. yield
–
3D Printing Industrials
ALGN Align Technology Inc
$153.62 +5.9% 1M +15.4% 1Y
Market cap
$10.98B
P/E
26.6x
Revenue (TTM)
$4.14B
Div. yield
–
Dental Healthcare
7 wins

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.

QuestionMLSSDDDALGNLeader
Larger companyMarket capitalisation $29.47M $436.48M $10.98B ALGN
Cheaper on earningsLower P/E, profitable companies only — -8.0x 26.6x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — — 14.0x –
Faster revenue growthRevenue growth, trailing twelve months -27.5% -6.2% +4.4% ALGN
More profitableNet margin, trailing twelve months — -14.2% 10.0% 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 -30.1% -6.6% +15.4% ALGN
Better 5-year returnAnnualised price return, 5 years -31.1%/yr -36.2%/yr -24.5%/yr ALGN
Less volatileAnnualised volatility, 1 year 81.5% 84.0% 39.1% ALGN
Higher overall scoreMean of the five percentile scores vs peers — 31/100 66/100 ALGN

Percentile Scorecard

MLSSDDDALGN

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

AxisMLSSDDDALGN
Valuation – 16 #171 of 203 89 #27 of 227
Growth – 59 #78 of 188 23 #169 of 219
Profitability – 11 #164 of 184 89 #23 of 205
Financial Health – 64 #79 of 217 42 #139 of 237
Shareholder Returns – 5 #145 of 153 89 #16 of 135
Overall – 31 66
  • MLSS ranked among 247 companies in Medical Devices and Diagnostics
  • DDD ranked among 222 companies in Machinery
  • ALGN ranked among 247 companies in Medical Devices and Diagnostics

Price Performance

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

Returns

PeriodMLSSDDDALGNSPY
1 month -22.0%-15.3%+5.9% +0.9%
3 months -15.8%+19.7%-14.7% +5.9%
6 months +3.2%+38.0%-13.9% +8.5%
Year to date +17.2%+68.4%-1.6% +13.3%
1 year -30.1%-6.6%+15.4% +12.4%
3 years -64.0%-16.3%-19.5% +88.1%
3 years, per year -28.9%-5.8%-7.0% +23.5%
5 years -84.5%-89.4%-75.4% +68.2%
5 years, per year -31.1%-36.2%-24.5% +11.0%
10 years -83.2%-78.3%+80.4% +263.4%
10 years, per year -16.3%-14.2%+6.1% +13.8%

Risk

MeasureMLSSDDDALGNSPY
Volatility, 1Y 81.5%84.0%39.1% 12.7%
Downside volatility, 1Y 83.3%75.1%37.0% 12.7%
Beta vs S&P 500, 1Y 1.292.811.30 1.00
Return / volatility, 1Y -0.37-0.080.39 0.98
Max drawdown, 5Y -90.9%-96.0%-82.4% -25.4%
From 52-week high -41.8%-23.2%-22.2% -0.9%
52-week high $0.55$3.88$197.51 $779.14
52-week low $0.25$1.77$131.91 $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.

MultipleMLSSDDDALGN
P/E now vs peer median —median 28.8x -8.1xmedian 25.4x 26.6xmedian 28.8x
P/S now vs peer median 4.3xmedian 3.0x 1.3xmedian 1.9x 2.6xmedian 3.0x
EV/EBITDA now vs peer median —median 17.4x -11.9xmedian 14.3x 12.3xmedian 17.4x
P/FCF now vs peer median —median 25.7x -9.4xmedian 21.8x 17.3xmedian 25.7x
P/B now vs peer median —median 2.4x 1.8xmedian 2.2x 2.6xmedian 2.4x
PEG now vs peer median —median 1.03 -0.30median 1.41 2.18median 1.03

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 monthsMLSSDDDALGN
Revenue $6.58M $387.64M $4.14B
Gross profit – $131.01M $2.82B
Operating income – -$61.26M $547.59M
Net income – -$54.85M $413.58M
Free cash flow – -$52.40M $633.57M
R&D – $47.60M $377.00M
EPS (diluted) – $-0.37 $5.78
Cash & equivalents – $127.95M $1.10B
Total debt – $91.18M –
Shares (diluted) 93.13M 148.97M 71.52M
Enterprise value $29.47M $32.27M $6.72B

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
MetricMLSSDDDALGN
P/E – -8.1x 26.6x
P/FCF – -9.4x 17.3x
P/Operating cash flow – -11.7x 14.5x
P/S 4.3x 1.3x 2.6x
P/B – 1.8x 2.6x
P/Tangible book – 1.9x 2.6x
EV/EBITDA – -11.9x 12.3x
EV/EBIT – -7.5x 18.0x
EV/Revenue 4.3x 1.2x 2.4x
EV/FCF – -8.7x 15.5x
EV/Operating cash flow – -10.8x 13.0x
PEG (3Y EPS CAGR) – -0.30 2.18

Growth

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

Profitability

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

Financial Health

11 metrics
MetricMLSSDDDALGN
Debt / assets – 17.0% –
Debt / equity – 0.3x –
Net debt / EBITDA – 1.0x –
Debt / FCF – -1.7x –
Liabilities / assets – 48.9% 34.0%
Equity / assets – 51.1% 66.0%
Interest coverage – – –
Current ratio – 3.4x 1.4x
Quick ratio – 1.9x 1.2x
Cash ratio – 1.2x 0.6x
Altman Z-score – -1.47 4.64

Shareholder Returns

7 metrics
MetricMLSSDDDALGN
Dividend yield – – –
Net buyback yield – -10.7% 2.3%
Shareholder yield – -10.7% 2.3%
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.

ConsensusMLSSDDDALGN
Forward P/E – – 14.0xFY2026
EPS, next fiscal year $-0.04FY2026 $-0.14FY2026 $10.95FY2026
EPS growth, next FY – – +4.2%FY2026
EPS growth, the year after – – +16.3%
Revenue, next fiscal year $9.29MFY2026 $368.77MFY2026 $3.86BFY2026
Revenue growth, next FY +3.6%FY2026 -4.7%FY2026 -4.2%FY2026
Revenue growth, the year after +27.1% +7.8% +3.5%

Institutional Ownership

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

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.

MLSSDDDALGN
MLSS 1.00 0.06 0.20
DDD 0.06 1.00 0.19
ALGN 0.20 0.19 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, MLSS, DDD and ALGN?

Align Technology (ALGN) is the largest by market capitalisation: Milestone Scientific (MLSS) $29.47M, 3D Systems (DDD) $436.48M, Align Technology (ALGN) $10.98B.

Which company is growing faster?

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

Which company is more profitable?

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

Which stock has performed better?

Over the past year Align Technology (ALGN) returned the most: Milestone Scientific (MLSS) -30.1%, 3D Systems (DDD) -6.6%, Align Technology (ALGN) +15.4%. Over five years, Align Technology (ALGN) compounded fastest (Milestone Scientific (MLSS) -31.1%/yr, 3D Systems (DDD) -36.2%/yr, Align Technology (ALGN) -24.5%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Align Technology (ALGN) has been the steadiest (Milestone Scientific (MLSS) 81.5%, 3D Systems (DDD) 84.0%, Align Technology (ALGN) 39.1%). Volatility measures how widely the price swings, not the risk of the business.

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

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.