IOTR vs AAOI vs DOX Stock Comparison

iOThree, Applied Optoelectronics and Amdocs Prices as of Nov 4, 2026 Peers: Industry group
1 more company in this comparison (EXTR) Create a free account to keep reading and compare up to 10 companies.
IOTR iOThree Ltd
$1.97 +3.1% 1M -31.8% 1Y
Market cap
$4.52M
P/E
–
Revenue (TTM)
—
Div. yield
–
Networking Equipment Technology
DOX Amdocs Ltd
$43.66 -25.3% 1M -47.7% 1Y
Market cap
$4.74B
P/E
9.4x
Revenue (TTM)
$4.70B
Div. yield
–
Networking Equipment Technology
6 wins

Head to Head

9 decided of 12

Amdocs leads on 6 of the 12 questions below (Amdocs 6, Applied Optoelectronics 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionIOTRAAOIDOXLeader
Larger companyMarket capitalisation $4.52M $4.19B $4.74B DOX
Cheaper on earningsLower P/E, profitable companies only -4.5x -73.4x 9.4x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 83.5x 5.5x DOX
Faster revenue growthRevenue growth, trailing twelve months — +61.8% +3.6% AAOI
More profitableNet margin, trailing twelve months — -9.6% 10.7% DOX
Better return on capitalReturn on invested capital — -4.2% 12.6% DOX
Less leveragedLower net debt / EBITDA — 13.8x — –
Higher dividend yieldTrailing dividend yield — 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -31.8% +100.9% -47.7% AAOI
Better 5-year returnAnnualised price return, 5 years — +58.9%/yr -10.4%/yr AAOI
Less volatileAnnualised volatility, 1 year 146.3% 139.7% 46.7% DOX
Higher overall scoreMean of the five percentile scores vs peers — 32/100 67/100 DOX

Percentile Scorecard

IOTRAAOIDOX

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

AxisIOTRAAOIDOX
Valuation 58 #48 of 112 13 #98 of 112 89 #13 of 112
Growth – 53 #51 of 108 36 #70 of 108
Profitability – 17 #87 of 104 85 #16 of 104
Financial Health 50 #59 of 116 70 #35 of 116 30 #81 of 116
Shareholder Returns – 7 #79 of 85 94 #6 of 85
Overall – 32 67
  • IOTR ranked among 121 companies in Computer Hardware
  • AAOI ranked among 121 companies in Computer Hardware
  • DOX ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodIOTRAAOIDOXSPY
1 month +3.1%-51.2%-25.3% -1.0%
3 months -31.4%-53.9%-21.0% -0.4%
6 months -21.2%-66.8%-31.7% +4.5%
Year to date -19.3%+70.0%-45.8% +12.4%
1 year -31.8%+100.9%-47.7% +13.6%
3 years —+525.9%-47.1% +76.4%
3 years, per year —+84.4%-19.1% +20.8%
5 years —+911.4%-42.3% +63.7%
5 years, per year —+58.9%-10.4% +10.4%
10 years —+173.8%-25.0% +267.7%
10 years, per year —+10.6%-2.8% +13.9%

Risk

MeasureIOTRAAOIDOXSPY
Volatility, 1Y 146.3%139.7%46.7% 12.8%
Downside volatility, 1Y 125.4%128.5%60.7% 12.7%
Beta vs S&P 500, 1Y 1.264.28-0.13 1.00
Return / volatility, 1Y -0.220.72-1.02 1.06
Max drawdown, 5Y -96.2%-77.2%-55.8% -25.4%
From 52-week high -63.0%-73.4%-48.9% -1.6%
52-week high $5.33$223.10$85.49 $779.14
52-week low $1.56$19.49$43.66 $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.

MultipleIOTRAAOIDOX
P/E now vs peer median -4.5xmedian 28.1x -84.8xmedian 28.1x 9.7xmedian 28.1x
P/S now vs peer median 0.3xmedian 2.6x 8.4xmedian 2.6x 1.0xmedian 2.6x
EV/EBITDA now vs peer median —median 18.4x -142.0xmedian 18.4x —median 18.4x
P/FCF now vs peer median -1.6xmedian 26.6x -8.3xmedian 26.6x 3.4xmedian 26.6x
P/B now vs peer median 1.0xmedian 2.8x 3.0xmedian 2.8x 1.4xmedian 2.8x
PEG now vs peer median —median 1.11 -2.55median 1.11 178.68median 1.11

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 monthsIOTRAAOIDOX
Revenue – $595.97M $4.70B
Gross profit – $172.33M $1.79B
Operating income – -$67.41M $682.94M
Net income – -$57.02M $501.24M
Free cash flow – -$600.81M $1.38B
R&D – $107.61M $335.46M
EPS (diluted) – $-0.70 $4.57
Cash & equivalents $2.12M $499.74M $197.05M
Total debt $376.70K $57.26M $946.99M
Shares (diluted) 2.64M 81.57M 109.66M
Enterprise value $122.82K $2.91B $3.87B

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
MetricIOTRAAOIDOX
P/E -4.5x -84.8x 9.7x
P/FCF -1.6x -8.3x 3.4x
P/Operating cash flow – -37.9x 3.9x
P/S 0.3x 8.4x 1.0x
P/B 1.0x 3.0x 1.4x
P/Tangible book 1.1x 3.0x 1.4x
EV/EBITDA – -142.0x –
EV/EBIT – -67.6x 8.0x
EV/Revenue – 7.6x 1.2x
EV/FCF – -7.6x 4.0x
EV/Operating cash flow – -34.6x 4.6x
PEG (3Y EPS CAGR) – -2.55 178.68

Growth

14 metrics
MetricIOTRAAOIDOX
Revenue growth (1Y) – 61.8% 3.6%
Revenue CAGR (3Y) – 40.9% -1.3%
Gross profit growth (1Y) – 62.0% 4.0%
Gross profit CAGR (3Y) – 73.3% 1.2%
Operating income growth (1Y) – -40.6% -6.7%
Operating income CAGR (3Y) – -2.8% 1.5%
Net income growth (1Y) – 63.4% -11.7%
Net income CAGR (3Y) – 6.2% -2.6%
EPS growth (1Y) – 74.5% -11.2%
EPS CAGR (3Y) – 33.2% 0.1%
Operating cash flow growth (1Y) – 15.2% 60.4%
Operating cash flow CAGR (3Y) – -168.6% 13.5%
Free cash flow growth (1Y) – -146.3% 62.2%
Free cash flow CAGR (3Y) – -294.2% 13.5%

Profitability

14 metrics
MetricIOTRAAOIDOX
Gross margin – 28.9% 38.1%
EBITDA margin – -5.4% –
Operating margin – -11.3% 14.5%
Pretax margin – -10.6% 13.5%
Net margin – -9.6% 10.7%
FCF margin – -100.8% 29.5%
Operating cash flow margin – -22.1% 25.6%
Return on equity – -4.1% 15.0%
Return on assets – -2.9% 7.8%
Return on invested capital – -4.2% 12.6%
Return on capital employed – -4.5% 14.6%
Asset turnover – 0.3x 0.7x
Cash conversion (OCF / net income) – 2.3x 2.4x
Stock comp / revenue – 2.6% –

Financial Health

11 metrics
MetricIOTRAAOIDOX
Debt / assets 4.4% 2.5% 14.8%
Debt / equity 0.1x 0.0x 0.3x
Net debt / EBITDA – 13.8x –
Debt / FCF – -0.1x 0.7x
Liabilities / assets 47.3% 27.5% 47.9%
Equity / assets 52.7% 72.5% 52.1%
Interest coverage – -19.1x –
Current ratio 1.8x 2.8x 0.9x
Quick ratio 1.0x 1.9x 0.1x
Cash ratio 0.7x 1.2x 0.1x
Altman Z-score – 4.98 –

Shareholder Returns

7 metrics
MetricIOTRAAOIDOX
Dividend yield – – 5.1%
Net buyback yield – -27.0% –
Shareholder yield – -27.0% 5.1%
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.

ConsensusIOTRAAOIDOX
Forward P/E – 83.5xFY2026 5.5xFY2026
EPS, next fiscal year – $0.71FY2026 $7.92FY2026
EPS growth, next FY – – +13.3%FY2026
EPS growth, the year after – +646.5% +4.0%
Revenue, next fiscal year – $994.70MFY2026 $4.46BFY2026
Revenue growth, next FY – +118.3%FY2026 -1.6%FY2026
Revenue growth, the year after – +185.6% +5.0%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersIOTRAAOIDOX
Held by institutions – 60.5% 93.0%
Institutions holding – 482 448
Change in shares held, QoQ – -3.5% +0.5%
Institutions buying – 313 250
Institutions selling – 144 153
Buyers to sellers – 2.17 1.63

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.

IOTRAAOIDOX
IOTR 1.00 0.04 0.05
AAOI 0.04 1.00 -0.08
DOX 0.05 -0.08 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, IOTR, AAOI and DOX?

Amdocs (DOX) is the largest by market capitalisation: iOThree (IOTR) $4.52M, Applied Optoelectronics (AAOI) $4.19B, Amdocs (DOX) $4.74B.

Which company is growing faster?

Applied Optoelectronics (AAOI) grew revenue fastest over the trailing twelve months: Applied Optoelectronics (AAOI) +61.8%, Amdocs (DOX) +3.6%.

Which company is more profitable?

Amdocs (DOX) has the highest net margin (Applied Optoelectronics (AAOI) -9.6%, Amdocs (DOX) 10.7%). On return on invested capital, Amdocs (DOX) leads (Applied Optoelectronics (AAOI) -4.2%, Amdocs (DOX) 12.6%).

Which stock has performed better?

Over the past year Applied Optoelectronics (AAOI) returned the most: iOThree (IOTR) -31.8%, Applied Optoelectronics (AAOI) +100.9%, Amdocs (DOX) -47.7%. Over five years, Applied Optoelectronics (AAOI) compounded fastest (Applied Optoelectronics (AAOI) +58.9%/yr, Amdocs (DOX) -10.4%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Amdocs (DOX) has been the steadiest (iOThree (IOTR) 146.3%, Applied Optoelectronics (AAOI) 139.7%, Amdocs (DOX) 46.7%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, IOTR, AAOI and DOX?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Amdocs (DOX) leads on 6. 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.