Stock vs Stock Comparison

Ciena Corporation vs Applied Optoelectronics, Inc.

CIEN wins the Tale of the Tape 7–2.

CIEN$620.37
AAOI$184.07

🏆 Tale of the Tape

72
CIENAAOI
2.6%Profitability (Net Margin)-8.4%
369.6xValuation (P/E)
4.3%Efficiency (ROIC)-3.8%
7/9Health (Piotroski F)4/9
14.1Safety (Altman Z)
18.8%Growth (Rev YoY)82.8%
3.56Risk (Sharpe 1Y)2.40
1.15xBalance Sheet (D/E)0.59x
0.94%FCF Yield

Green = winner in each category. Higher is better except P/E (lower = cheaper).

Rolling Correlation

0.528
252-Day Correlation
0.571
126-Day Correlation

Moderately correlated — some diversification benefit from holding both.

Fundamentals

MetricCIENAAOI
Market Cap$82.0B$12.7B
P/E Ratio369.6x
Forward P/E66.4x33.2x
P/B29.39x11.31x
Dividend Yield
Beta1.253.76

Quantitative Metrics

MetricCIENAAOI
DCF Fair Value$142.10
DCF Upside-70.4%
Piotroski F7/94/9
Altman Z14.09
Beneish M-2.90-0.61
FCF Yield0.94%
Net Debt/EBITDA1.1x
ROIC4.3%-3.8%
WACC10.9%
ROIC – WACC-6.7pp
Gross Margin42.0%30.0%
Net Margin2.6%-8.4%
Rev Growth YoY18.8%82.8%
Sharpe (1Y)3.562.40
Max Drawdown 3Y-45.5%-77.2%
FCF Payout Ratio

CIEN Price

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AAOI Price

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ETF Exposure

CIEN found in:

IYZ5.41%
XTL4.83%
FDN3.48%
VBK1.10%
SMMD0.96%
VOT0.88%
IWS0.71%
XLK0.55%
VB0.48%
SIZE0.45%
VGT0.39%
VO0.38%
VFMO0.29%
SPYG0.24%
VONV0.23%
ONEO0.20%
VUG0.14%
SPY0.13%
QUS0.13%
VOO0.12%
SPTM0.11%
VTI0.11%
VONE0.11%
ESGV0.11%
VT0.07%

AAOI found in:

XTL3.89%
VTWO0.32%
VXF0.13%
VGT0.11%
VFMO0.09%

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Quant metrics computed from financial statements and 1,200+ trading days. Correlation is Pearson coefficient on daily log returns. Not investment advice.

CIEN vs AAOI: Head-to-Head Analysis

Ciena Corporation (CIEN) and Applied Optoelectronics, Inc. (AAOI) represent two companies in the Technology sector. In our quantitative Tale of the Tape scoring, CIEN leads 7–2 across nine fundamental and risk metrics including profitability, valuation, capital efficiency, and financial health.

In terms of capital efficiency, CIEN generates a return on invested capital (ROIC) of 4.3% compared to AAOI's -3.8%. This suggests CIEN is more effective at deploying capital to generate shareholder returns.

The 252-day rolling correlation between CIEN and AAOI is 0.528, indicating moderate co-movement, with some diversification value from holding both in a portfolio context.

CIEN appears in 25 ETFs tracked by SecuritiesDB, while AAOI appears in 5 ETFs. Investors holding broad-market ETFs may already have indirect exposure to both stocks.

Frequently Asked Questions

Which stock is the better investment, CIEN or AAOI?

Our quantitative analysis compares CIEN and AAOI across nine fundamental dimensions. CIEN wins the Tale of the Tape 7–2. However, stock selection depends on your individual risk tolerance, time horizon, and portfolio context. These metrics are computed from SEC filings and market data — they are not investment recommendations.

Are CIEN and AAOI correlated?

The 252-day correlation between CIEN and AAOI is 0.528. They show moderate correlation — partially diversifying.

How is the Tale of the Tape scored?

The Tale of the Tape compares both stocks across nine categories: profitability (net margin), valuation (P/E), efficiency (ROIC), health (Piotroski F-Score), safety (Altman Z-Score), growth (revenue YoY), risk (Sharpe ratio), leverage (debt-to-equity), and cash generation (FCF yield). The stock that wins more categories takes the overall score. Lower P/E and lower debt-to-equity count as wins.