Stock vs Stock Comparison

Keysight Technologies, Inc. vs Applied Optoelectronics, Inc.

KEYS wins the Tale of the Tape 5–3.

KEYS$350.48
AAOI$184.07

🏆 Tale of the Tape

53
KEYSAAOI
15.8%Profitability (Net Margin)-8.4%
54.3xValuation (P/E)
9.8%Efficiency (ROIC)-3.8%
4/9Health (Piotroski F)4/9
8.1Safety (Altman Z)
8.0%Growth (Rev YoY)82.8%
2.26Risk (Sharpe 1Y)2.40
0.92xBalance Sheet (D/E)0.59x
2.28%FCF Yield

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

Rolling Correlation

0.380
252-Day Correlation
0.341
126-Day Correlation

Moderately correlated — some diversification benefit from holding both.

Fundamentals

MetricKEYSAAOI
Market Cap$57.8B$12.7B
P/E Ratio54.3x
Forward P/E28.5x33.2x
P/B9.14x11.31x
Dividend Yield
Beta1.263.76

Quantitative Metrics

MetricKEYSAAOI
DCF Fair Value$117.16
DCF Upside-64.6%
Piotroski F4/94/9
Altman Z8.12
Beneish M-2.65-0.61
FCF Yield2.28%
Net Debt/EBITDA0.5x
ROIC9.8%-3.8%
WACC11.6%
ROIC – WACC-1.7pp
Gross Margin62.1%30.0%
Net Margin15.8%-8.4%
Rev Growth YoY8.0%82.8%
Sharpe (1Y)2.262.40
Max Drawdown 3Y-77.2%
FCF Payout Ratio

KEYS Price

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AAOI Price

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ETF Exposure

KEYS found in:

VFMV1.30%
VOE1.07%
VO0.61%
XLK0.38%
SIZE0.34%
VGT0.33%
VTV0.23%
SPYV0.20%
RSP0.20%
VONV0.18%
SCHV0.18%
IWD0.16%
ONEO0.16%
ESGV0.10%
VOO0.10%
SPY0.09%
VONE0.09%
VTI0.09%
SCHX0.09%
SPTM0.08%
SCHB0.08%
URTH0.06%
IVV0.06%
ITOT0.05%
VT0.05%
SPLG0.05%
ACWI0.04%
QUS0.03%

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.

KEYS vs AAOI: Head-to-Head Analysis

Keysight Technologies, Inc. (KEYS) and Applied Optoelectronics, Inc. (AAOI) represent two companies in the Technology sector. In our quantitative Tale of the Tape scoring, KEYS leads 5–3 across nine fundamental and risk metrics including profitability, valuation, capital efficiency, and financial health.

In terms of capital efficiency, KEYS generates a return on invested capital (ROIC) of 9.8% compared to AAOI's -3.8%. This suggests KEYS is more effective at deploying capital to generate shareholder returns.

The 252-day rolling correlation between KEYS and AAOI is 0.380, indicating moderate co-movement, with some diversification value from holding both in a portfolio context.

KEYS appears in 28 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, KEYS or AAOI?

Our quantitative analysis compares KEYS and AAOI across nine fundamental dimensions. KEYS wins the Tale of the Tape 5–3. 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 KEYS and AAOI correlated?

The 252-day correlation between KEYS and AAOI is 0.380. 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.