APH vs. VOO

Last updated Jun 16, 2026

APH (Amphenol Corporation) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, APH returned 28.29%/yr vs 15.72%/yr for VOO. A 0.73 correlation means they provide meaningful diversification when combined.

Performance

APH vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amphenol Corporation (APH) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, APH achieves a 17.58% return, which is significantly higher than VOO's 10.99% return. Over the past 10 years, APH has outperformed VOO with an annualized return of 28.29%, while VOO has yielded a comparatively lower 15.72% annualized return.

APH

• 1D: 3.11%
• 1M: 26.87%
• YTD: 17.58%
• 6M: 22.56%
• 1Y: 72.68%
• 3Y*: 58.07%
• 5Y*: 37.31%
• 10Y*: 28.29%

VOO

• 1D: 1.74%
• 1M: 2.12%
• YTD: 10.99%
• 6M: 11.51%
• 1Y: 27.95%
• 3Y*: 21.25%
• 5Y*: 13.93%
• 10Y*: 15.72%

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

APH vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
APH Amphenol Corporation	17.58%	96.08%	41.30%	31.85%	-11.96%	35.25%	22.09%	34.91%	-6.82%	31.81%
VOO Vanguard S&P 500 ETF	10.99%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between APH and VOO is 0.50, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.50
Correlation (3Y) Calculated over the trailing 3-year period	0.63
Correlation (5Y) Calculated over the trailing 5-year period	0.72
Correlation (10Y) Calculated over the trailing 10-year period	0.72
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.73

Over the past year, the correlation between APH and VOO has dropped to 0.50 - well below their long-term average of 0.73, suggesting their price drivers have been diverging.

Return for Risk

APH vs. VOO — Risk / Return Rank

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

APH

APH Risk / Return Rank: 82
APH Sharpe Ratio Rank: 86
APH Sortino Ratio Rank: 79
APH Omega Ratio Rank: 82
APH Calmar Ratio Rank: 81
APH Martin Ratio Rank: 81

VOO

VOO Risk / Return Rank: 78
VOO Sharpe Ratio Rank: 80
VOO Sortino Ratio Rank: 78
VOO Omega Ratio Rank: 79
VOO Calmar Ratio Rank: 69
VOO Martin Ratio Rank: 81

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. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amphenol Corporation (APH) and Vanguard S&P 500 ETF (VOO). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	APH	VOO	Difference
Sharpe ratio: Return per unit of total volatility	1.75	2.28	-0.53
Sortino ratio: Return per unit of downside risk	2.17	3.07	-0.90
Omega ratio: Gain probability vs. loss probability	1.30	1.42	-0.11
Calmar ratio: Return relative to maximum drawdown	2.59	3.15	-0.56
Martin ratio: Return relative to average drawdown	6.68	14.25	-7.58

APH vs. VOO - Sharpe Ratio Comparison

The current APH Sharpe Ratio is 1.75, which is comparable to the VOO Sharpe Ratio of 2.28. The chart below compares the historical Sharpe Ratios of APH and VOO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

APH vs. VOO - Drawdown Comparison

The maximum APH drawdown since its inception was -63.41%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for APH and VOO.

Drawdown Indicators

	APH	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-63.41%	-33.99%	-29.42%
Max Drawdown (1Y) Largest decline over 1 year	-28.19%	-8.90%	-19.29%
Max Drawdown (3Y) Largest decline over 3 years	-28.19%	-18.69%	-9.50%
Max Drawdown (5Y) Largest decline over 5 years	-28.73%	-24.52%	-4.21%
Max Drawdown (10Y) Largest decline over 10 years	-37.56%	-33.99%	-3.57%
Current Drawdown Current decline from peak	-4.42%	-0.63%	-3.79%
Average Drawdown Average peak-to-trough decline	-13.56%	-3.68%	-9.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.92%	1.97%	+8.95%

Volatility

APH vs. VOO - Volatility Comparison

Amphenol Corporation (APH) has a higher volatility of 15.42% compared to Vanguard S&P 500 ETF (VOO) at 4.61%. This indicates that APH's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	APH	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.42%	4.61%	+10.81%
Volatility (6M) Calculated over the trailing 6-month period	37.51%	9.72%	+27.79%
Volatility (1Y) Calculated over the trailing 1-year period	41.76%	12.34%	+29.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.79%	16.90%	+13.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.96%	18.05%	+9.91%

Dividends

APH vs. VOO - Dividend Comparison

APH's dividend yield for the trailing twelve months is around 0.52%, less than VOO's 1.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
APH Amphenol Corporation	0.52%	0.55%	0.79%	1.07%	1.06%	0.89%	0.80%	0.89%	1.09%	0.80%	0.86%	1.01%
VOO Vanguard S&P 500 ETF	1.03%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both APH and VOO in my portfolio?

APH and VOO have a correlation of 0.50, 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 VOO?

APH has higher volatility (15.42%) compared to VOO (4.61%). In terms of maximum drawdown, APH dropped -63.41% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (2.28 vs 1.75), 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.