BDC vs. APH

Last updated Jun 4, 2026

BDC (Belden Inc.) and APH (Amphenol Corporation) are both stocks. BDC operates in Electrical Equipment & Parts (Industrials), while APH operates in Electronic Components (Technology). Over the past 10 years, BDC returned 5.86%/yr vs 27.09%/yr for APH. At a 0.44 correlation, their price movements are largely independent.

Performance

BDC vs. APH - Performance Comparison

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

Returns By Period

In the year-to-date period, BDC achieves a -5.07% return, which is significantly lower than APH's 9.45% return. Over the past 10 years, BDC has underperformed APH with an annualized return of 5.86%, while APH has yielded a comparatively higher 27.09% annualized return.

BDC

• 1D: 1.07%
• 1M: -1.23%
• YTD: -5.07%
• 6M: -7.84%
• 1Y: 2.23%
• 3Y*: 7.26%
• 5Y*: 15.79%
• 10Y*: 5.86%

APH

• 1D: -0.53%
• 1M: 4.67%
• YTD: 9.45%
• 6M: 6.89%
• 1Y: 62.16%
• 3Y*: 57.45%
• 5Y*: 34.98%
• 10Y*: 27.09%

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

BDC vs. APH - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BDC Belden Inc.	-5.07%	3.68%	46.06%	7.69%	9.75%	57.46%	-23.40%	32.14%	-45.70%	3.48%
APH Amphenol Corporation	9.45%	96.08%	41.30%	31.85%	-11.96%	35.25%	22.09%	34.91%	-6.82%	31.81%

Correlation

The correlation between BDC and APH is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (3Y) Calculated over the trailing 3-year period	0.52
Correlation (5Y) Calculated over the trailing 5-year period	0.61
Correlation (10Y) Calculated over the trailing 10-year period	0.59
Correlation (All Time) Calculated using the full available price history since Nov 26, 1993	0.44

The correlation between BDC and APH shifts across timeframes, from 0.39 (1 year) to 0.61 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap BDC : $4.36B APH : $190.39B
EPS BDC : $5.94 APH : $4.58
PE Ratio BDC : 18.63 APH : 32.20
PEG Ratio BDC : 0.23 APH : 1.07
PS Ratio BDC : 1.58 APH : 7.31
PB Ratio BDC : 3.40 APH : 13.62
Total Revenue (TTM) BDC : $2.79B APH : $25.90B
Gross Profit (TTM) BDC : $1.04B APH : $9.67B
EBITDA (TTM) BDC : $427.27M APH : $7.45B

Return for Risk

BDC vs. APH — Risk / Return Rank

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

BDC

BDC Risk / Return Rank: 40
BDC Sharpe Ratio Rank: 43
BDC Sortino Ratio Rank: 37
BDC Omega Ratio Rank: 37
BDC Calmar Ratio Rank: 42
BDC Martin Ratio Rank: 42

APH

APH Risk / Return Rank: 77
APH Sharpe Ratio Rank: 82
APH Sortino Ratio Rank: 74
APH Omega Ratio Rank: 76
APH Calmar Ratio Rank: 76
APH Martin Ratio Rank: 77

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.

BDC vs. APH - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Belden Inc. (BDC) and Amphenol Corporation (APH). 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.

	BDC	APH	Difference
Sharpe ratio Return per unit of total volatility	0.06	1.55	-1.48
Sortino ratio Return per unit of downside risk	0.34	1.98	-1.64
Omega ratio Gain probability vs. loss probability	1.04	1.28	-0.24
Calmar ratio Return relative to maximum drawdown	0.07	2.22	-2.15
Martin ratio Return relative to average drawdown	0.16	5.79	-5.63
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BDC vs. APH - Sharpe Ratio Comparison

The current BDC Sharpe Ratio is 0.06, which is lower than the APH Sharpe Ratio of 1.55. The chart below compares the historical Sharpe Ratios of BDC and APH, 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

	BDC	APH	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.06	1.55	-1.48
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.43	1.16	-0.72
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.15	0.98	-0.83
Sharpe Ratio (All Time) Calculated using the full available price history	0.21	0.63	-0.42

Drawdowns

BDC vs. APH - Drawdown Comparison

The maximum BDC drawdown since its inception was -85.69%, which is greater than APH's maximum drawdown of -63.41%. Use the drawdown chart below to compare losses from any high point for BDC and APH.

Drawdown Indicators

	BDC	APH	Difference
Max Drawdown Largest peak-to-trough decline	-85.69%	-63.41%	-22.28%
Max Drawdown (1Y) Largest decline over 1 year	-32.41%	-28.19%	-4.22%
Max Drawdown (3Y) Largest decline over 3 years	-36.62%	-28.19%	-8.43%
Max Drawdown (5Y) Largest decline over 5 years	-36.62%	-28.73%	-7.89%
Max Drawdown (10Y) Largest decline over 10 years	-67.69%	-37.56%	-30.13%
Current Drawdown Current decline from peak	-26.68%	-11.03%	-15.65%
Average Drawdown Average peak-to-trough decline	-34.82%	-13.56%	-21.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.99%	10.76%	+3.23%

Volatility

BDC vs. APH - Volatility Comparison

The current volatility for Belden Inc. (BDC) is 10.31%, while Amphenol Corporation (APH) has a volatility of 15.91%. This indicates that BDC experiences smaller price fluctuations and is considered to be less risky than APH based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BDC	APH	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.31%	15.91%	-5.60%
Volatility (6M) Calculated over the trailing 6-month period	28.93%	36.03%	-7.10%
Volatility (1Y) Calculated over the trailing 1-year period	35.55%	40.39%	-4.84%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	36.55%	30.42%	+6.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.23%	27.75%	+12.48%

Dividends

BDC vs. APH - Dividend Comparison

BDC's dividend yield for the trailing twelve months is around 0.18%, less than APH's 0.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
APH Amphenol Corporation	0.56%	0.55%	0.79%	1.07%	1.06%	0.89%	0.80%	0.89%	1.09%	0.80%	0.86%	1.01%
BDC Belden Inc.	0.18%	0.17%	0.18%	0.26%	0.28%	0.30%	0.48%	0.36%	0.48%	0.26%	0.27%	0.42%

Financials

BDC vs. APH - Profitability Comparison

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

BDC - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Belden Inc. reported a gross profit of 258.09M and revenue of 696.38M. Therefore, the gross margin over that period was 37.1%.

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%.

BDC - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Belden Inc. reported an operating income of 77.96M and revenue of 696.38M, resulting in an operating margin of 11.2%.

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%.

BDC - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Belden Inc. reported a net income of 51.03M and revenue of 696.38M, resulting in a net margin of 7.3%.

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%.

Frequently Asked Questions

Can I hold both BDC and APH in my portfolio?

BDC and APH have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BDC or APH?

APH has higher volatility (15.91%) compared to BDC (10.31%). In terms of maximum drawdown, BDC dropped -85.69% vs APH's -63.41%.

Which has better risk-adjusted returns?

APH currently has the higher Sharpe Ratio (1.55 vs 0.06), 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.