APH vs. LDOS

Last updated Jun 9, 2026

APH (Amphenol Corporation) and LDOS (Leidos Holdings, Inc.) are both stocks. Both are in the Technology sector — APH in Electronic Components, LDOS in Information Technology Services. Over the past 10 years, APH returned 26.67%/yr vs 15.01%/yr for LDOS. At a 0.41 correlation, their price movements are largely independent.

Performance

APH vs. LDOS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amphenol Corporation (APH) and Leidos Holdings, Inc. (LDOS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, APH achieves a 6.47% return, which is significantly higher than LDOS's -31.76% return. Over the past 10 years, APH has outperformed LDOS with an annualized return of 26.67%, while LDOS has yielded a comparatively lower 15.01% annualized return.

APH

• 1D: 3.45%
• 1M: 12.16%
• YTD: 6.47%
• 6M: 2.93%
• 1Y: 54.90%
• 3Y*: 55.57%
• 5Y*: 34.64%
• 10Y*: 26.67%

LDOS

• 1D: -1.31%
• 1M: -5.62%
• YTD: -31.76%
• 6M: -33.53%
• 1Y: -16.31%
• 3Y*: 15.32%
• 5Y*: 4.53%
• 10Y*: 15.01%

*Multi-year figures are annualized to reflect compound growth (CAGR)

APH vs. LDOS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
APH Amphenol Corporation	6.47%	96.08%	41.30%	31.85%	-11.96%	35.25%	22.09%	34.91%	-6.82%	31.81%
LDOS Leidos Holdings, Inc.	-31.76%	26.50%	34.52%	4.50%	20.04%	-14.20%	8.95%	88.82%	-16.72%	29.14%

Correlation

The correlation between APH and LDOS is 0.12, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.12
Correlation (3Y) Calculated over the trailing 3-year period	0.26
Correlation (5Y) Calculated over the trailing 5-year period	0.30
Correlation (10Y) Calculated over the trailing 10-year period	0.37
Correlation (All Time) Calculated using the full available price history since Oct 13, 2006	0.41

Over the past year, the correlation between APH and LDOS has dropped to 0.12 - well below their long-term average of 0.41, suggesting their price drivers have been diverging.

Fundamentals

Market Cap APH : $185.20B LDOS : $15.72B
EPS APH : $4.58 LDOS : $10.92
PE Ratio APH : 31.32 LDOS : 11.25
PEG Ratio APH : 1.04 LDOS : 0.09
PS Ratio APH : 7.11 LDOS : 0.92
PB Ratio APH : 13.25 LDOS : 3.14
Total Revenue (TTM) APH : $25.90B LDOS : $17.33B
Gross Profit (TTM) APH : $9.67B LDOS : $3.04B
EBITDA (TTM) APH : $7.45B LDOS : $2.34B

Return for Risk

APH vs. LDOS — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

APH

APH Risk / Return Rank: 76
APH Sharpe Ratio Rank: 80
APH Sortino Ratio Rank: 72
APH Omega Ratio Rank: 75
APH Calmar Ratio Rank: 75
APH Martin Ratio Rank: 76

LDOS

LDOS Risk / Return Rank: 20
LDOS Sharpe Ratio Rank: 18
LDOS Sortino Ratio Rank: 19
LDOS Omega Ratio Rank: 18
LDOS Calmar Ratio Rank: 28
LDOS Martin Ratio Rank: 18

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

APH vs. LDOS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amphenol Corporation (APH) and Leidos Holdings, Inc. (LDOS). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	APH	LDOS	Difference
Sharpe ratio: Return per unit of total volatility	1.35	-0.56	+1.91
Sortino ratio: Return per unit of downside risk	1.79	-0.60	+2.39
Omega ratio: Gain probability vs. loss probability	1.25	0.92	+0.33
Calmar ratio: Return relative to maximum drawdown	1.96	-0.43	+2.39
Martin ratio: Return relative to average drawdown	5.07	-1.12	+6.19
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

APH vs. LDOS - Sharpe Ratio Comparison

The current APH Sharpe Ratio is 1.35, which is higher than the LDOS Sharpe Ratio of -0.56. The chart below compares the historical Sharpe Ratios of APH and LDOS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	APH	LDOS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.35	-0.56	+1.91
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.14	0.17	+0.97
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.96	0.55	+0.41
Sharpe Ratio (All Time) Calculated using the full available price history	0.63	0.23	+0.40

Drawdowns

APH vs. LDOS - Drawdown Comparison

The maximum APH drawdown since its inception was -63.41%, which is greater than LDOS's maximum drawdown of -54.72%. Use the drawdown chart below to compare losses from any high point for APH and LDOS.

Drawdown Indicators

	APH	LDOS	Difference
Max Drawdown Largest peak-to-trough decline	-63.41%	-54.72%	-8.69%
Max Drawdown (1Y) Largest decline over 1 year	-28.19%	-38.17%	+9.98%
Max Drawdown (3Y) Largest decline over 3 years	-28.19%	-38.17%	+9.98%
Max Drawdown (5Y) Largest decline over 5 years	-28.73%	-38.17%	+9.44%
Max Drawdown (10Y) Largest decline over 10 years	-37.56%	-42.29%	+4.73%
Current Drawdown Current decline from peak	-13.45%	-38.17%	+24.72%
Average Drawdown Average peak-to-trough decline	-13.56%	-19.67%	+6.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.87%	14.55%	-3.68%

Volatility

APH vs. LDOS - Volatility Comparison

Amphenol Corporation (APH) has a higher volatility of 16.86% compared to Leidos Holdings, Inc. (LDOS) at 7.17%. This indicates that APH's price experiences larger fluctuations and is considered to be riskier than LDOS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	APH	LDOS	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.86%	7.17%	+9.69%
Volatility (6M) Calculated over the trailing 6-month period	36.53%	25.18%	+11.35%
Volatility (1Y) Calculated over the trailing 1-year period	40.97%	29.33%	+11.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.54%	26.74%	+3.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.83%	27.50%	+0.33%

Dividends

APH vs. LDOS - Dividend Comparison

APH's dividend yield for the trailing twelve months is around 0.58%, less than LDOS's 1.35% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
APH Amphenol Corporation	0.58%	0.55%	0.79%	1.07%	1.06%	0.89%	0.80%	0.89%	1.09%	0.80%	0.86%	1.01%
LDOS Leidos Holdings, Inc.	1.35%	0.90%	1.07%	1.35%	1.37%	1.57%	1.29%	1.35%	2.43%	1.98%	29.17%	3.41%

Financials

APH vs. LDOS - Profitability Comparison

The chart below illustrates the profitability comparison between Amphenol Corporation and Leidos Holdings, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

APH - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Amphenol Corporation reported a gross profit of 2.80B and revenue of 7.62B. Therefore, the gross margin over that period was 36.8%.

LDOS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Leidos Holdings, Inc. reported a gross profit of 761.00M and revenue of 4.40B. Therefore, the gross margin over that period was 17.3%.

APH - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Amphenol Corporation reported an operating income of 1.83B and revenue of 7.62B, resulting in an operating margin of 24.0%.

LDOS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Leidos Holdings, Inc. reported an operating income of 508.00M and revenue of 4.40B, resulting in an operating margin of 11.6%.

APH - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Amphenol Corporation reported a net income of 2.35B and revenue of 7.62B, resulting in a net margin of 30.8%.

LDOS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Leidos Holdings, Inc. reported a net income of 328.00M and revenue of 4.40B, resulting in a net margin of 7.5%.

Frequently Asked Questions

Can I hold both APH and LDOS in my portfolio?

APH and LDOS have a correlation of 0.12, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, APH or LDOS?

APH has higher volatility (16.86%) compared to LDOS (7.17%). In terms of maximum drawdown, APH dropped -63.41% vs LDOS's -54.72%.

Which has better risk-adjusted returns?

APH currently has the higher Sharpe Ratio (1.35 vs -0.56), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.