OPTX vs PKOH vs CSTM Stock Comparison

Syntec Optics Holdings, Park Ohio Holdings and Constellium Se Prices as of Oct 27, 2026 Peers: Industry group
PKOH Park Ohio Holdings Corp
$44.48 -7.4% 1M +117.3% 1Y
Market cap
$617.86M
P/E
23.3x
Revenue (TTM)
$1.65B
Div. yield
–
Metal Fabrication Industrials
2 wins
CSTM Constellium Se
$24.54 -1.5% 1M +45.6% 1Y
Market cap
$3.27B
P/E
6.0x
Revenue (TTM)
$9.58B
Div. yield
–
Metal Fabrication Industrials
7 wins

Head to Head

11 decided of 12

Constellium Se leads on 7 of the 12 questions below (Constellium Se 7, Syntec Optics Holdings 2, Park Ohio Holdings 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionOPTXPKOHCSTMLeader
Larger companyMarket capitalisation $281.01M $617.86M $3.27B CSTM
Cheaper on earningsLower P/E, profitable companies only -116.4x 23.3x 6.0x CSTM
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 13.0x 5.9x CSTM
Faster revenue growthRevenue growth, trailing twelve months +1.5% +2.7% +25.9% CSTM
More profitableNet margin, trailing twelve months -8.3% 1.6% 5.7% CSTM
Better return on capitalReturn on invested capital — 6.1% 25.6% CSTM
Less leveragedLower net debt / EBITDA -11.7x 5.8x 1.2x OPTX
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +177.9% +117.3% +45.6% OPTX
Better 5-year returnAnnualised price return, 5 years — +13.3%/yr +5.2%/yr PKOH
Less volatileAnnualised volatility, 1 year 136.5% 44.5% 44.8% PKOH
Higher overall scoreMean of the five percentile scores vs peers 31/100 51/100 74/100 CSTM

Percentile Scorecard

OPTXPKOHCSTM

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

AxisOPTXPKOHCSTM
Valuation 5 #192 of 203 85 #31 of 203 97 #8 of 203
Growth 6 #176 of 188 75 #48 of 188 97 #6 of 188
Profitability 18 #151 of 183 40 #110 of 183 65 #64 of 183
Financial Health 94 #13 of 217 13 #190 of 217 19 #176 of 217
Shareholder Returns – 45 #85 of 153 90 #16 of 153
Overall 31 51 74
  • OPTX ranked among 222 companies in Machinery
  • PKOH ranked among 222 companies in Machinery
  • CSTM ranked among 222 companies in Machinery

Price Performance

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

Returns

PeriodOPTXPKOHCSTMSPY
1 month -5.0%-7.4%-1.5% -0.2%
3 months +10.2%+13.6%-15.6% +3.9%
6 months -14.3%+50.7%-21.0% +8.2%
Year to date +145.8%+112.4%+30.2% +12.9%
1 year +177.9%+117.3%+45.6% +12.3%
3 years -33.0%+101.7%+60.2% +87.4%
3 years, per year -12.5%+26.4%+17.0% +23.3%
5 years —+86.3%+28.8% +67.9%
5 years, per year —+13.3%+5.2% +10.9%
10 years —+38.2%+371.9% +261.1%
10 years, per year —+3.3%+16.8% +13.7%

Risk

MeasureOPTXPKOHCSTMSPY
Volatility, 1Y 136.5%44.5%44.8% 12.7%
Downside volatility, 1Y 114.0%43.4%42.1% 12.7%
Beta vs S&P 500, 1Y 3.581.311.94 1.00
Return / volatility, 1Y 1.302.641.02 0.97
Max drawdown, 5Y -93.0%-62.4%-66.3% -25.4%
From 52-week high -50.2%-15.3%-32.1% -1.2%
52-week high $14.11$52.51$36.15 $779.14
52-week low $1.25$18.74$14.75 $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.

MultipleOPTXPKOHCSTM
P/E now vs peer median -114.1xmedian 25.2x 23.3xmedian 25.2x 6.1xmedian 25.2x
P/S now vs peer median 9.7xmedian 1.9x 0.4xmedian 1.9x 0.3xmedian 1.9x
EV/EBITDA now vs peer median 281.3xmedian 14.0x 11.9xmedian 14.0x 3.4xmedian 14.0x
P/FCF now vs peer median -694.0xmedian 21.7x 31.4xmedian 21.7x 15.3xmedian 21.7x
P/B now vs peer median 9.3xmedian 2.3x 1.6xmedian 2.3x 2.7xmedian 2.3x
PEG now vs peer median 2.26median 1.32 0.37median 1.32 0.07median 1.32

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 monthsOPTXPKOHCSTM
Revenue $29.24M $1.65B $9.58B
Gross profit $5.73M $286.50M $1.56B
Operating income -$1.35M $71.50M $1.14B
Net income -$2.41M $26.50M $545.00M
Free cash flow -$407.99K $20.50M $218.00M
R&D – – $53.00M
EPS (diluted) $-0.06 $1.87 $3.89
Cash & equivalents $14.05M $48.30M $163.00M
Total debt $29.94M $652.60M $1.92B
Shares (diluted) 39.19M 14.20M 140.15M
Enterprise value $265.41M $427.26M $2.73B

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
MetricOPTXPKOHCSTM
P/E -114.1x 23.3x 6.1x
P/FCF -694.0x 31.4x 15.3x
P/Operating cash flow 403.4x 9.6x 6.0x
P/S 9.7x 0.4x 0.3x
P/B 9.3x 1.6x 2.7x
P/Tangible book 9.3x 1.6x 2.8x
EV/EBITDA 281.3x 11.9x 3.4x
EV/EBIT -200.7x 17.5x 4.4x
EV/Revenue 9.3x 0.8x 0.5x
EV/FCF -666.4x 60.9x 23.3x
EV/Operating cash flow 387.3x 18.5x 9.2x
PEG (3Y EPS CAGR) 2.26 0.37 0.07

Growth

14 metrics
MetricOPTXPKOHCSTM
Revenue growth (1Y) 1.5% 2.7% 25.9%
Revenue CAGR (3Y) – 0.8% 6.3%
Gross profit growth (1Y) -14.9% 4.9% 66.2%
Gross profit CAGR (3Y) – 5.6% 21.4%
Operating income growth (1Y) -43.2% -7.1% 101.1%
Operating income CAGR (3Y) -56.0% 10.1% 27.0%
Net income growth (1Y) -53.5% -4.7% 1,457%
Net income CAGR (3Y) -52.3% 66.6% 19.3%
EPS growth (1Y) -44.6% -6.0% 1,629%
EPS CAGR (3Y) -50.5% 62.5% 85.0%
Operating cash flow growth (1Y) -40.6% 476.1% 84.9%
Operating cash flow CAGR (3Y) -37.2% 93.5% –
Free cash flow growth (1Y) -0.1% 187.6% 311.7%
Free cash flow CAGR (3Y) -30.1% 46.1% –

Profitability

14 metrics
MetricOPTXPKOHCSTM
Gross margin 19.6% 17.3% 16.3%
EBITDA margin 3.3% 6.3% 15.5%
Operating margin -4.6% 4.3% 11.9%
Pretax margin -6.8% 1.6% 8.1%
Net margin -8.3% 1.6% 5.7%
FCF margin -1.4% 1.2% 2.3%
Operating cash flow margin 2.4% 4.1% 5.8%
Return on equity -12.3% 6.9% 45.7%
Return on assets -7.7% 1.8% 9.1%
Return on invested capital – 6.1% 25.6%
Return on capital employed -5.2% 6.6% 31.2%
Asset turnover 0.9x 1.1x 1.6x
Cash conversion (OCF / net income) -0.3x 2.5x 1.0x
Stock comp / revenue – 0.3% –

Financial Health

11 metrics
MetricOPTXPKOHCSTM
Debt / assets 7.1% 44.4% 31.7%
Debt / equity 0.1x 1.7x 1.5x
Net debt / EBITDA -11.7x 5.8x 1.2x
Debt / FCF -6.8x 31.8x 8.8x
Liabilities / assets 21.5% 73.3% 79.3%
Equity / assets 78.5% 26.7% 20.7%
Interest coverage – 1.4x 10.5x
Current ratio 6.0x 2.4x 1.4x
Quick ratio 4.3x 1.1x 0.6x
Cash ratio 2.8x 0.1x 0.1x
Altman Z-score 21.94 – 2.96

Shareholder Returns

7 metrics
MetricOPTXPKOHCSTM
Dividend yield – 1.1% –
Net buyback yield – – 3.4%
Shareholder yield – 1.1% 3.4%
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.

ConsensusOPTXPKOHCSTM
Forward P/E – 13.0xFY2026 5.9xFY2026
EPS, next fiscal year – $3.41FY2026 $4.18FY2026
EPS growth, next FY – +26.3%FY2026 +237.1%FY2026
EPS growth, the year after – +13.2% -32.3%
Revenue, next fiscal year – $1.78BFY2026 $10.71BFY2026
Revenue growth, next FY – +11.5%FY2026 +26.8%FY2026
Revenue growth, the year after – +5.8% +1.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersOPTXPKOHCSTM
Held by institutions 12.3% 55.8% 88.6%
Institutions holding 62 104 384
Change in shares held, QoQ +244.7% +6.4% -4.5%
Institutions buying 51 58 255
Institutions selling 8 27 108
Buyers to sellers 6.38 2.15 2.36

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.

OPTXPKOHCSTM
OPTX 1.00 0.14 0.31
PKOH 0.14 1.00 0.36
CSTM 0.31 0.36 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, OPTX, PKOH and CSTM?

Constellium Se (CSTM) is the largest by market capitalisation: Syntec Optics Holdings (OPTX) $281.01M, Park Ohio Holdings (PKOH) $617.86M, Constellium Se (CSTM) $3.27B.

Which stock is cheaper, OPTX, PKOH and CSTM?

Constellium Se (CSTM) trades on the lowest price-to-earnings ratio (Syntec Optics Holdings (OPTX) -116.4x, Park Ohio Holdings (PKOH) 23.3x, Constellium Se (CSTM) 6.0x). On next year's consensus earnings, Constellium Se (CSTM) is cheapest (Park Ohio Holdings (PKOH) 13.0x, Constellium Se (CSTM) 5.9x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Constellium Se (CSTM) grew revenue fastest over the trailing twelve months: Syntec Optics Holdings (OPTX) +1.5%, Park Ohio Holdings (PKOH) +2.7%, Constellium Se (CSTM) +25.9%.

Which company is more profitable?

Constellium Se (CSTM) has the highest net margin (Syntec Optics Holdings (OPTX) -8.3%, Park Ohio Holdings (PKOH) 1.6%, Constellium Se (CSTM) 5.7%). On return on invested capital, Constellium Se (CSTM) leads (Park Ohio Holdings (PKOH) 6.1%, Constellium Se (CSTM) 25.6%).

Which stock has performed better?

Over the past year Syntec Optics Holdings (OPTX) returned the most: Syntec Optics Holdings (OPTX) +177.9%, Park Ohio Holdings (PKOH) +117.3%, Constellium Se (CSTM) +45.6%. Over five years, Park Ohio Holdings (PKOH) compounded fastest (Park Ohio Holdings (PKOH) +13.3%/yr, Constellium Se (CSTM) +5.2%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Park Ohio Holdings (PKOH) has been the steadiest (Syntec Optics Holdings (OPTX) 136.5%, Park Ohio Holdings (PKOH) 44.5%, Constellium Se (CSTM) 44.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, OPTX, PKOH and CSTM?

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