COPY vs. BLDX

Last updated Jul 28, 2026

COPY (Tweedy, Browne Insider + Value ETF) and BLDX (Impax Global Sustainable Infrastructure ETF) are both exchange-traded funds - COPY is a Global Equities fund actively managed by Tweedy, Browne, while BLDX is a Infrastructure Equities fund actively managed by Impax Asset Management. Both are actively managed. Their 0.56 correlation means they have sometimes moved together and sometimes differently. COPY charges 0.80%/yr vs 0.60%/yr for BLDX.

Performance

COPY vs. BLDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Tweedy, Browne Insider + Value ETF (COPY) and Impax Global Sustainable Infrastructure ETF (BLDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

COPY

• 1D: 0.59%
• 1M: 4.61%
• 6M: 12.45%
• YTD: 19.69%
• 1Y: 28.82%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 32.02%

BLDX

• 1D: -0.11%
• 1M: 0.68%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BLDX Impax Global Sustainable Infrastructure ETF	$75.90K	$90.31K	$290.80K
COPY Tweedy, Browne Insider + Value ETF	$2.55M	$1.98M	$1.87M

COPY vs. BLDX - Yearly Performance Comparison

	2026 (YTD)
COPY Tweedy, Browne Insider + Value ETF	13.28%
BLDX Impax Global Sustainable Infrastructure ETF	5.78%

Correlation

The correlation between COPY and BLDX is 0.56, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (All Time) Calculated using the full available price history since Feb 2, 2026	0.56

Return for Risk

COPY vs. BLDX — Risk / Return Rank

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

COPY

COPY Risk / Return Rank: 88
COPY Sharpe Ratio Rank: 90
COPY Sortino Ratio Rank: 91
COPY Omega Ratio Rank: 88
COPY Calmar Ratio Rank: 84
COPY Martin Ratio Rank: 87

BLDX

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

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.

COPY vs. BLDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tweedy, Browne Insider + Value ETF (COPY) and Impax Global Sustainable Infrastructure ETF (BLDX). 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.

	COPY	BLDX	Difference
Sharpe ratio: Return per unit of total volatility	2.21	—	—
Sortino ratio: Return per unit of downside risk	3.23	—	—
Omega ratio: Gain probability vs. loss probability	1.39	—	—
Calmar ratio: Return relative to maximum drawdown	3.19	—	—
Martin ratio: Return relative to average drawdown	12.92	—	—

Drawdowns

COPY vs. BLDX - Drawdown Comparison

The maximum COPY drawdown since its inception was -14.05%, which is greater than BLDX's maximum drawdown of -8.26%. Use the drawdown chart below to compare losses from any high point for COPY and BLDX.

Drawdown Indicators

	COPY	BLDX	Difference
Max Drawdown Largest peak-to-trough decline	-14.05%	-8.26%	-5.79%
Max Drawdown (1Y) Largest decline over 1 year	-9.07%	—	—
Current Drawdown Current decline from peak	0.00%	-3.89%	+3.89%
Average Drawdown Average peak-to-trough decline	-1.50%	-3.56%	+2.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.29%	—	—

Volatility

Volatility by Period

	COPY	BLDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.89%	—	—
Volatility (6M) Calculated over the trailing 6-month period	10.11%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	13.12%	16.88%	-3.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.92%	16.88%	+0.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.92%	16.88%	+0.04%

COPY vs. BLDX - Expense Ratio Comparison

COPY has a 0.80% expense ratio, which is higher than BLDX's 0.60% expense ratio.

Dividends

COPY vs. BLDX - Dividend Comparison

COPY's dividend yield for the trailing twelve months is around 0.80%, less than BLDX's 0.97% yield.

Position	TTM	2025
BLDX Impax Global Sustainable Infrastructure ETF	0.97%	0.00%
COPY Tweedy, Browne Insider + Value ETF	0.80%	0.95%

Frequently Asked Questions

Can I hold both COPY and BLDX in my portfolio?

COPY and BLDX have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, COPY or BLDX?

On fees, BLDX is cheaper at 0.60% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, COPY or BLDX?

BLDX is cheaper with a 0.60% expense ratio, compared with 0.80% for COPY.

Which ETF pays a higher dividend yield, COPY or BLDX?

BLDX has the higher dividend yield at 0.97%, compared with 0.80% for COPY.

What is the main difference between COPY and BLDX?

COPY is categorized as Global Equities, while BLDX is Infrastructure Equities. They also come from different issuers: Tweedy, Browne and Impax Asset Management. Their fees differ too: 0.80% for COPY and 0.60% for BLDX.