RSPG vs. TNGY

Last updated Apr 2, 2026

Compare and contrast key facts about Invesco S&P 500 Equal Weight Energy ETF (RSPG) and Tortoise Energy Fund (TNGY).

RSPG and TNGY are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. RSPG is a passively managed fund by Invesco that tracks the performance of the S&P 500 Equal Weight Energy Plus Index. It was launched on Nov 1, 2006. TNGY is an actively managed fund by Tortoise Capital. It was launched on Jun 16, 2025.

Performance

RSPG vs. TNGY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco S&P 500 Equal Weight Energy ETF (RSPG) and Tortoise Energy Fund (TNGY). The values are adjusted to include any dividend payments, if applicable.

RSPG vs. TNGY - Yearly Performance Comparison

	2026 (YTD)	2025
RSPG Invesco S&P 500 Equal Weight Energy ETF	33.74%	4.93%
TNGY Tortoise Energy Fund	14.20%	1.81%

Returns By Period

In the year-to-date period, RSPG achieves a 33.74% return, which is significantly higher than TNGY's 14.20% return.

RSPG

• 1D: -3.23%
• 1M: 4.35%
• YTD: 33.74%
• 6M: 33.64%
• 1Y: 31.63%
• 3Y*: 18.70%
• 5Y*: 23.95%
• 10Y*: 11.25%

TNGY

• 1D: -2.11%
• 1M: -0.64%
• YTD: 14.20%
• 6M: 13.92%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RSPG vs. TNGY - Expense Ratio Comparison

RSPG has a 0.40% expense ratio, which is lower than TNGY's 0.85% expense ratio.

TNGY

Tortoise Energy Fund

RSPG

Invesco S&P 500 Equal Weight Energy ETF

Return for Risk

RSPG vs. TNGY — Risk / Return Rank

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

RSPG

RSPG Risk / Return Rank: 56
RSPG Sharpe Ratio Rank: 63
RSPG Sortino Ratio Rank: 57
RSPG Omega Ratio Rank: 60
RSPG Calmar Ratio Rank: 57
RSPG Martin Ratio Rank: 44

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.

RSPG vs. TNGY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco S&P 500 Equal Weight Energy ETF (RSPG) and Tortoise Energy Fund (TNGY). 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.

	RSPG	TNGY	Difference
Sharpe ratio Return per unit of total volatility	1.15	—	—
Sortino ratio Return per unit of downside risk	1.54	—	—
Omega ratio Gain probability vs. loss probability	1.23	—	—
Calmar ratio Return relative to maximum drawdown	1.55	—	—
Martin ratio Return relative to average drawdown	4.32	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	RSPG	TNGY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.15	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.84	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.34	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.18	1.49	-1.31

Correlation

The correlation between RSPG and TNGY is 0.67, 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

RSPG vs. TNGY - Dividend Comparison

RSPG's dividend yield for the trailing twelve months is around 1.95%, less than TNGY's 3.44% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RSPG Invesco S&P 500 Equal Weight Energy ETF	1.95%	2.60%	2.43%	2.84%	3.43%	2.37%	3.15%	2.15%	2.18%	2.55%	1.14%	2.80%
TNGY Tortoise Energy Fund	3.44%	2.59%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

RSPG vs. TNGY - Drawdown Comparison

The maximum RSPG drawdown since its inception was -79.98%, which is greater than TNGY's maximum drawdown of -5.30%. Use the drawdown chart below to compare losses from any high point for RSPG and TNGY.

Drawdown Indicators

	RSPG	TNGY	Difference
Max Drawdown Largest peak-to-trough decline	-79.98%	-5.30%	-74.68%
Max Drawdown (1Y) Largest decline over 1 year	-21.05%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-28.44%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-73.17%	—	—
Current Drawdown Current decline from peak	-6.04%	-4.76%	-1.28%
Average Drawdown Average peak-to-trough decline	-25.63%	-1.58%	-24.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.55%	—	—

Volatility

Volatility by Period

	RSPG	TNGY	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.30%	—	—
Volatility (6M) Calculated over the trailing 6-month period	15.29%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	27.69%	14.17%	+13.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.51%	14.17%	+14.34%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	33.58%	14.17%	+19.41%