ERTH vs. RSP

Last updated Aug 2, 2026

ERTH (Invesco MSCI Sustainable Future ETF) and RSP (Invesco S&P 500 Equal Weight ETF) are both exchange-traded funds - ERTH is a Alternative Energy Equities fund tracking the MSCI Global Environment Select Index, while RSP is a S&P 500 fund tracking the S&P 500 Equal Weight Index. Both are passively managed. Over the past 10 years, ERTH returned 6.39%/yr vs 11.94%/yr for RSP. Their 0.78 correlation means they have sometimes moved together and sometimes differently. ERTH charges 0.55%/yr vs 0.20%/yr for RSP.

Performance

ERTH vs. RSP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco MSCI Sustainable Future ETF (ERTH) and Invesco S&P 500 Equal Weight ETF (RSP). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ERTH achieves a -1.58% return, which is significantly lower than RSP's 13.16% return. Over the past 10 years, ERTH has underperformed RSP with an annualized return of 6.39%, while RSP has yielded a comparatively higher 11.94% annualized return.

ERTH

• 1D: -0.38%
• 1M: -1.77%
• 6M: -3.27%
• YTD: -1.58%
• 1Y: 9.02%
• 3Y*: -2.78%
• 5Y*: -6.13%
• 10Y*: 6.39%
• ALL TIME*: 4.70%

RSP

• 1D: -0.17%
• 1M: 0.05%
• 6M: 9.43%
• YTD: 13.16%
• 1Y: 20.39%
• 3Y*: 13.55%
• 5Y*: 8.88%
• 10Y*: 11.94%
• ALL TIME*: 11.30%

*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)
ERTH Invesco MSCI Sustainable Future ETF	$113.13K	$114.74K	$158.59K
RSP Invesco S&P 500 Equal Weight ETF	$1.86B	$1.85B	$2.06B

ERTH vs. RSP - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ERTH Invesco MSCI Sustainable Future ETF	-1.58%	18.47%	-13.56%	0.12%	-27.59%	2.64%	51.02%	36.78%	-12.49%	30.53%
RSP Invesco S&P 500 Equal Weight ETF	13.16%	11.21%	12.79%	13.70%	-11.62%	29.41%	12.66%	28.91%	-7.84%	18.52%

Correlation

The correlation between ERTH and RSP is 0.57, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.57
Correlation (3Y) Balances recent behavior with more history.	0.66
Correlation (5Y) Shows whether the relationship held over a longer period.	0.70
Correlation (10Y) Provides a long-term view across more market conditions.	0.72
Correlation (All Time) Calculated using the full available price history since Oct 24, 2006	0.78

Over the past year, the correlation between ERTH and RSP has dropped to 0.57 - well below their long-term average of 0.78, suggesting their price drivers have been diverging.

ERTH vs. RSP - Sectors Allocation Comparison

Sectors	ERTH	RSP
Technology	12.1%	16.9%
Real Estate	11.7%	6.0%
Consumer Cyclical	9.5%	9.5%
Industrials	2.6%	14.6%
Utilities	2.3%	6.6%
Basic Materials	1.6%	4.6%
Consumer Defensive	1.5%	6.2%
Energy	1.5%	4.2%
Financial Services	0.3%	14.8%
Communication Services	-	3.3%
Healthcare	-	11.8%

Return for Risk

ERTH vs. RSP — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

ERTH

ERTH Risk / Return Rank: 23
ERTH Sharpe Ratio Rank: 22
ERTH Sortino Ratio Rank: 22
ERTH Omega Ratio Rank: 21
ERTH Calmar Ratio Rank: 24
ERTH Martin Ratio Rank: 25

RSP

RSP Risk / Return Rank: 73
RSP Sharpe Ratio Rank: 73
RSP Sortino Ratio Rank: 74
RSP Omega Ratio Rank: 69
RSP Calmar Ratio Rank: 71
RSP Martin Ratio Rank: 76

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

ERTH vs. RSP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco MSCI Sustainable Future ETF (ERTH) and Invesco S&P 500 Equal Weight ETF (RSP). 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.

	ERTH	RSP	Difference
Sharpe ratio: Return per unit of total volatility	0.49	1.63	-1.14
Sortino ratio: Return per unit of downside risk	0.79	2.38	-1.59
Omega ratio: Gain probability vs. loss probability	1.09	1.29	-0.19
Calmar ratio: Return relative to maximum drawdown	0.73	2.43	-1.70
Martin ratio: Return relative to average drawdown	1.98	9.43	-7.45

ERTH vs. RSP - Sharpe Ratio Comparison

The current ERTH Sharpe Ratio is 0.49, which is lower than the RSP Sharpe Ratio of 1.63. The chart below compares the historical Sharpe Ratios of ERTH and RSP, 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

ERTH vs. RSP - Drawdown Comparison

The maximum ERTH drawdown since its inception was -64.45%, which is greater than RSP's maximum drawdown of -59.92%. Use the drawdown chart below to compare losses from any high point for ERTH and RSP.

Drawdown Indicators

	ERTH	RSP	Difference
Max Drawdown Largest peak-to-trough decline	-64.45%	-59.92%	-4.53%
Max Drawdown (1Y) Largest decline over 1 year	-11.51%	-7.85%	-3.66%
Max Drawdown (3Y) Largest decline over 3 years	-31.18%	-17.81%	-13.37%
Max Drawdown (5Y) Largest decline over 5 years	-51.72%	-21.38%	-30.34%
Max Drawdown (10Y) Largest decline over 10 years	-51.72%	-39.04%	-12.68%
Current Drawdown Current decline from peak	-33.70%	-1.23%	-32.47%
Average Drawdown Average peak-to-trough decline	-21.55%	-6.61%	-14.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.25%	2.02%	+2.23%

Volatility

ERTH vs. RSP - Volatility Comparison

Invesco MSCI Sustainable Future ETF (ERTH) has a higher volatility of 4.87% compared to Invesco S&P 500 Equal Weight ETF (RSP) at 2.88%. This indicates that ERTH's price experiences larger fluctuations and is considered to be riskier than RSP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ERTH	RSP	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.87%	2.88%	+1.99%
Volatility (6M) Calculated over the trailing 6-month period	13.24%	8.59%	+4.65%
Volatility (1Y) Calculated over the trailing 1-year period	17.43%	11.76%	+5.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.84%	16.16%	+6.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.53%	18.28%	+4.25%

ERTH vs. RSP - Expense Ratio Comparison

ERTH has a 0.55% expense ratio, which is higher than RSP's 0.20% expense ratio.

Dividends

ERTH vs. RSP - Dividend Comparison

ERTH's dividend yield for the trailing twelve months is around 1.97%, more than RSP's 1.49% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ERTH Invesco MSCI Sustainable Future ETF	1.97%	1.46%	1.00%	1.28%	1.22%	15.33%	0.21%	0.71%	0.61%	0.87%	1.06%	0.79%
RSP Invesco S&P 500 Equal Weight ETF	1.49%	1.64%	1.52%	1.64%	1.82%	1.28%	1.64%	1.69%	2.02%	1.52%	1.20%	1.70%

Frequently Asked Questions

Can I hold both ERTH and RSP in my portfolio?

ERTH and RSP have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ERTH or RSP?

ERTH has higher volatility (4.87%) compared to RSP (2.88%). In terms of maximum drawdown, ERTH dropped -64.45% vs RSP's -59.92%.

Which ETF is better, ERTH or RSP?

On 10-year performance, RSP leads with 11.94% vs 6.39% for ERTH. On fees, RSP is cheaper at 0.20% per year. On volatility, RSP has been the lower-risk option at 2.88%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ERTH or RSP?

Over the 10-year period, RSP has performed better with a 11.94% return vs 6.39%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ERTH or RSP?

RSP is cheaper with a 0.20% expense ratio, compared with 0.55% for ERTH.

Which ETF pays a higher dividend yield, ERTH or RSP?

ERTH has the higher dividend yield at 1.97%, compared with 1.49% for RSP.

What is the main difference between ERTH and RSP?

ERTH is categorized as Alternative Energy Equities, while RSP is S&P 500. ERTH tracks MSCI Global Environment Select Index, while RSP tracks S&P 500 Equal Weight Index. Their fees differ too: 0.55% for ERTH and 0.20% for RSP.

Which has better risk-adjusted returns?

RSP currently has the higher Sharpe Ratio (1.63 vs 0.49), 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.