Stock vs Stock Comparison

Cisco Systems, Inc. vs Applied Optoelectronics, Inc.

CSCO wins the Tale of the Tape 6–3.

CSCO$126.50
AAOI$184.07

🏆 Tale of the Tape

63
CSCOAAOI
18.0%Profitability (Net Margin)-8.4%
40.1xValuation (P/E)
11.5%Efficiency (ROIC)-3.8%
8/9Health (Piotroski F)4/9
3.4Safety (Altman Z)
5.3%Growth (Rev YoY)82.8%
1.39Risk (Sharpe 1Y)2.40
1.61xBalance Sheet (D/E)0.59x
3.92%FCF Yield

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

Rolling Correlation

0.324
252-Day Correlation
0.273
126-Day Correlation

Moderately correlated — some diversification benefit from holding both.

Fundamentals

MetricCSCOAAOI
Market Cap$474.6B$12.7B
P/E Ratio40.1x
Forward P/E25.2x33.2x
P/B9.74x11.31x
Dividend Yield1.40%
Beta0.913.76

Quantitative Metrics

MetricCSCOAAOI
DCF Fair Value$70.57
DCF Upside-14.3%
Piotroski F8/94/9
Altman Z3.39
Beneish M-2.65-0.61
FCF Yield3.92%
Net Debt/EBITDA0.9x
ROIC11.5%-3.8%
WACC9.5%
ROIC – WACC2.0pp
Gross Margin64.9%30.0%
Net Margin18.0%-8.4%
Rev Growth YoY5.3%82.8%
Sharpe (1Y)1.392.40
Max Drawdown 3Y-77.2%
FCF Payout Ratio48%

CSCO Price

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AAOI Price

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ETF Exposure

CSCO found in:

IYZ21.13%
FDN7.10%
HACK6.28%
VLUE4.90%
XTL4.23%
SCHD3.58%
XNTK3.51%
HDV3.11%
XLK3.10%
USMV1.81%
QUS1.80%
QQQ1.68%
VGT1.65%
VIG1.63%
MGV1.61%
VYM1.52%
DIA1.45%
VTV1.27%
VFMV1.17%
VONV1.11%
SCHV1.06%
IWD1.02%
SPYV0.76%
SPY0.73%
SPYG0.71%
SPTM0.67%
DGRW0.63%
ESGV0.62%
VOO0.59%
VONE0.55%
IVV0.52%
SCHX0.50%
SPLG0.48%
SCHB0.47%
VTI0.47%
ITOT0.46%
URTH0.37%
ACWI0.32%
VT0.32%
RSP0.19%
ONEO0.14%
VFVA0.11%

AAOI found in:

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

More Comparisons

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

CSCO vs AAOI: Head-to-Head Analysis

Cisco Systems, Inc. (CSCO) and Applied Optoelectronics, Inc. (AAOI) represent two companies in the Technology sector. In our quantitative Tale of the Tape scoring, CSCO leads 6–3 across nine fundamental and risk metrics including profitability, valuation, capital efficiency, and financial health.

In terms of capital efficiency, CSCO generates a return on invested capital (ROIC) of 11.5% compared to AAOI's -3.8%. This suggests CSCO is more effective at deploying capital to generate shareholder returns.

The 252-day rolling correlation between CSCO and AAOI is 0.324, indicating moderate co-movement, with some diversification value from holding both in a portfolio context.

CSCO appears in 42 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, CSCO or AAOI?

Our quantitative analysis compares CSCO and AAOI across nine fundamental dimensions. CSCO wins the Tale of the Tape 6–3. 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 CSCO and AAOI correlated?

The 252-day correlation between CSCO and AAOI is 0.324. 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.