OILT vs. TNGY

Last updated Apr 2, 2026

Compare and contrast key facts about Texas Capital Texas Oil Index ETF (OILT) and Tortoise Energy Fund (TNGY).

OILT and TNGY are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. OILT is a passively managed fund by Texas Capital that tracks the performance of the Alerian Texas Weighted Oil and Gas Index - Benchmark TR Gross. It was launched on Dec 20, 2023. TNGY is an actively managed fund by Tortoise Capital. It was launched on Jun 16, 2025.

Performance

OILT vs. TNGY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Texas Capital Texas Oil Index ETF (OILT) and Tortoise Energy Fund (TNGY). The values are adjusted to include any dividend payments, if applicable.

OILT vs. TNGY - Yearly Performance Comparison

	2026 (YTD)	2025
OILT Texas Capital Texas Oil Index ETF	39.42%	0.45%
TNGY Tortoise Energy Fund	14.20%	1.81%

Returns By Period

In the year-to-date period, OILT achieves a 39.42% return, which is significantly higher than TNGY's 14.20% return.

OILT

• 1D: -3.72%
• 1M: 9.81%
• YTD: 39.42%
• 6M: 38.43%
• 1Y: 33.73%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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)

OILT vs. TNGY - Expense Ratio Comparison

OILT has a 0.35% expense ratio, which is lower than TNGY's 0.85% expense ratio.

TNGY

Tortoise Energy Fund

OILT

Texas Capital Texas Oil Index ETF

Return for Risk

OILT vs. TNGY — Risk / Return Rank

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

OILT

OILT Risk / Return Rank: 47
OILT Sharpe Ratio Rank: 51
OILT Sortino Ratio Rank: 50
OILT Omega Ratio Rank: 48
OILT Calmar Ratio Rank: 47
OILT Martin Ratio Rank: 37

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.

OILT vs. TNGY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Texas Capital Texas Oil Index ETF (OILT) 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.

	OILT	TNGY	Difference
Sharpe ratio Return per unit of total volatility	0.98	—	—
Sortino ratio Return per unit of downside risk	1.42	—	—
Omega ratio Gain probability vs. loss probability	1.20	—	—
Calmar ratio Return relative to maximum drawdown	1.36	—	—
Martin ratio Return relative to average drawdown	3.77	—	—
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

	OILT	TNGY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.98	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	1.49	-0.98

Correlation

The correlation between OILT and TNGY is 0.56, 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

OILT vs. TNGY - Dividend Comparison

OILT's dividend yield for the trailing twelve months is around 2.36%, less than TNGY's 3.44% yield.

	TTM	2025	2024
OILT Texas Capital Texas Oil Index ETF	2.36%	3.12%	2.63%
TNGY Tortoise Energy Fund	3.44%	2.59%	0.00%

Drawdowns

OILT vs. TNGY - Drawdown Comparison

The maximum OILT drawdown since its inception was -35.21%, which is greater than TNGY's maximum drawdown of -5.30%. Use the drawdown chart below to compare losses from any high point for OILT and TNGY.

Drawdown Indicators

	OILT	TNGY	Difference
Max Drawdown Largest peak-to-trough decline	-35.21%	-5.30%	-29.91%
Max Drawdown (1Y) Largest decline over 1 year	-24.58%	—	—
Current Drawdown Current decline from peak	-5.91%	-4.76%	-1.15%
Average Drawdown Average peak-to-trough decline	-13.24%	-1.58%	-11.66%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.84%	—	—

Volatility

Volatility by Period

	OILT	TNGY	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.45%	—	—
Volatility (6M) Calculated over the trailing 6-month period	18.97%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	34.66%	14.17%	+20.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.40%	14.17%	+14.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.40%	14.17%	+14.23%