APH vs. DCI

Last updated Apr 1, 2026

Compare and contrast key facts about Amphenol Corporation (APH) and Donaldson Company, Inc. (DCI).

Performance

APH vs. DCI - Performance Comparison

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

APH vs. DCI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
APH Amphenol Corporation	-6.32%	96.08%	41.30%	31.85%	-11.96%	35.25%	22.09%	34.91%	-6.82%	31.81%
DCI Donaldson Company, Inc.	-4.01%	33.71%	4.62%	12.80%	0.96%	7.56%	-1.41%	34.98%	-9.95%	18.17%

Fundamentals

Market Cap APH : $162.83B DCI : $10.01B
EPS APH : $3.34 DCI : $3.19
PE Ratio APH : 37.88 DCI : 26.58
PEG Ratio APH : 1.26 DCI : 3.08
PS Ratio APH : 7.00 DCI : 2.68
PB Ratio APH : 12.14 DCI : 6.35
Total Revenue (TTM) APH : $23.09B DCI : $3.75B
Gross Profit (TTM) APH : $8.52B DCI : $1.29B
EBITDA (TTM) APH : $6.89B DCI : $596.10M

Returns By Period

In the year-to-date period, APH achieves a -6.32% return, which is significantly lower than DCI's -4.01% return. Over the past 10 years, APH has outperformed DCI with an annualized return of 25.30%, while DCI has yielded a comparatively lower 12.01% annualized return.

APH

• 1D: 6.04%
• 1M: -13.32%
• YTD: -6.32%
• 6M: 2.50%
• 1Y: 94.00%
• 3Y*: 46.92%
• 5Y*: 31.66%
• 10Y*: 25.30%

DCI

• 1D: 2.74%
• 1M: -8.51%
• YTD: -4.01%
• 6M: 4.30%
• 1Y: 28.40%
• 3Y*: 10.78%
• 5Y*: 9.22%
• 10Y*: 12.01%

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

Return for Risk

APH vs. DCI — Risk / Return Rank

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

APH

APH Risk / Return Rank: 90
APH Sharpe Ratio Rank: 93
APH Sortino Ratio Rank: 89
APH Omega Ratio Rank: 91
APH Calmar Ratio Rank: 87
APH Martin Ratio Rank: 91

DCI

DCI Risk / Return Rank: 72
DCI Sharpe Ratio Rank: 76
DCI Sortino Ratio Rank: 70
DCI Omega Ratio Rank: 73
DCI Calmar Ratio Rank: 66
DCI Martin Ratio Rank: 74

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. DCI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amphenol Corporation (APH) and Donaldson Company, Inc. (DCI). 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	DCI	Difference
Sharpe ratio Return per unit of total volatility	2.30	1.02	+1.29
Sortino ratio Return per unit of downside risk	2.65	1.54	+1.11
Omega ratio Gain probability vs. loss probability	1.40	1.23	+0.18
Calmar ratio Return relative to maximum drawdown	3.23	1.13	+2.10
Martin ratio Return relative to average drawdown	11.34	4.07	+7.27
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. DCI - Sharpe Ratio Comparison

The current APH Sharpe Ratio is 2.30, which is higher than the DCI Sharpe Ratio of 1.02. The chart below compares the historical Sharpe Ratios of APH and DCI, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	APH	DCI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.30	1.02	+1.29
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.08	0.40	+0.68
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.93	0.47	+0.47
Sharpe Ratio (All Time) Calculated using the full available price history	0.62	0.51	+0.11

Correlation

The correlation between APH and DCI is 0.41, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

APH vs. DCI - Dividend Comparison

APH's dividend yield for the trailing twelve months is around 0.66%, less than DCI's 1.41% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
APH Amphenol Corporation	0.66%	0.55%	0.79%	1.07%	1.06%	0.89%	0.80%	0.89%	1.09%	0.80%	0.86%	1.01%
DCI Donaldson Company, Inc.	1.41%	1.32%	1.57%	1.50%	1.55%	1.47%	1.50%	1.42%	1.73%	1.45%	1.65%	2.36%

Drawdowns

APH vs. DCI - Drawdown Comparison

The maximum APH drawdown since its inception was -63.41%, which is greater than DCI's maximum drawdown of -56.90%. Use the drawdown chart below to compare losses from any high point for APH and DCI.

Drawdown Indicators

	APH	DCI	Difference
Max Drawdown Largest peak-to-trough decline	-63.41%	-56.90%	-6.51%
Max Drawdown (1Y) Largest decline over 1 year	-28.19%	-25.08%	-3.11%
Max Drawdown (5Y) Largest decline over 5 years	-28.73%	-32.20%	+3.47%
Max Drawdown (10Y) Largest decline over 10 years	-37.56%	-42.72%	+5.16%
Current Drawdown Current decline from peak	-23.85%	-23.03%	-0.82%
Average Drawdown Average peak-to-trough decline	-13.55%	-11.03%	-2.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.03%	6.97%	+1.06%

Volatility

APH vs. DCI - Volatility Comparison

Amphenol Corporation (APH) has a higher volatility of 14.30% compared to Donaldson Company, Inc. (DCI) at 7.16%. This indicates that APH's price experiences larger fluctuations and is considered to be riskier than DCI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	APH	DCI	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.30%	7.16%	+7.14%
Volatility (6M) Calculated over the trailing 6-month period	33.98%	20.67%	+13.31%
Volatility (1Y) Calculated over the trailing 1-year period	41.10%	28.08%	+13.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.47%	23.32%	+6.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.16%	25.86%	+1.30%

Financials

APH vs. DCI - Profitability Comparison

The chart below illustrates the profitability comparison between Amphenol Corporation and Donaldson Company, 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 Apr 2026, Amphenol Corporation reported a gross profit of 2.46B and revenue of 6.44B. Therefore, the gross margin over that period was 38.2%.

DCI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Donaldson Company, Inc. reported a gross profit of 299.80M and revenue of 896.30M. Therefore, the gross margin over that period was 33.5%.

APH - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Amphenol Corporation reported an operating income of 1.77B and revenue of 6.44B, resulting in an operating margin of 27.5%.

DCI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Donaldson Company, Inc. reported an operating income of 118.70M and revenue of 896.30M, resulting in an operating margin of 13.2%.

APH - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Amphenol Corporation reported a net income of 1.20B and revenue of 6.44B, resulting in a net margin of 18.6%.

DCI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Donaldson Company, Inc. reported a net income of 92.50M and revenue of 896.30M, resulting in a net margin of 10.3%.