TNGYvsIEOETF Comparison
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Tortoise Energy ETF (TNGY) belongs to the Multi-Asset: Other segment. iShares U.S. Oil & Gas Exploration & Production ETF (IEO) is part of the US Energy segment. TNGY's top 3 sector exposures are Energy and Utilities. In contrast, IEO's top sector exposures are Energy and Finance.Non-Energy Materials, TNGY is more expensive with a Total Expense Ratio (TER) of 0.85%, versus 0.38% for IEO. TNGY is up 18.63% year-to-date (YTD) with -$25M in YTD flows. IEO performs better with 40.56% YTD performance, and -$7M in YTD flows. Run a side-by-side ETF comparison of TNGY and IEO below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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TNGY vs IEO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 07/30/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | TNGY IEO | +7.00%+13.23% | -1.04%+1.68% | +18.63%+40.56% | +19.10%+39.68% | n/a+40.96% | n/a+183.99% |
| Flows | TNGY IEO | -$3M-$18M | -$12M-$54M | -$25M-$7M | -$48M-$79M | --$219M | --$113M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | TNGY IEO | +20.99%+28.65% | +15.52%+25.90% | n/a+25.76% | n/a+30.28% |
| Max drawdown | TNGY IEO | -8.92%-12.61% | -10.01%-16.31% | n/a-31.40% | n/a-31.40% |
| Max drawdown duration | TNGY IEO | 78d77d | 123d123d | n/a683d | n/a683d |
Trading data
TNGY | IEO | |
Last sale 7/31/2026 at 1:30 PM | $10.48 | $126.08 |
| Previous close 07/30/2026 | $10.33 | $124.38 |
| Consolidated volume 07/30/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of June 30, 2026
1-year trailing difference
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TNGY
is actively managed and doesn’t replicate an indexTNGY | IEO | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 7/31/2026 at 1:30 PM
Live
Closed
TNGY | IEO | |
|---|---|---|
| Last price | $10.48 | $126.08 |
| 1D performance | +1.42% | +1.37% |
| AuM | $548.85 M | $565.77 M |
| E/R | 0.85% | 0.38% |
Characteristics
TNGY | IEO | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Tortoise Capital | iShares |
| Benchmark | - | Dow Jones U.S. Select Oil Exploration & Production Index |
| N° of holdings | 26 | 47 |
| Asset class | - | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 16, 2025 | May 1, 2006 |
| ESG | No | No |
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Exposure
Countries
TNGY
USA
98.74%
Other
1.26%
IEO
USA
100.02%
Other
-0.02%
Sectors
TNGY
Energy
90.45%
Utilities
8.29%
Other
1.26%
IEO
Energy
92.38%
Other
7.62%
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Diversification
TNGY
Total weight of top 15 holdings out of 15
77.53%
IEO
Total weight of top 15 holdings out of 15
82.83%
Top 15 holdings
Data as of June 30, 2026
TNGY
Valero Energy Corp.
7.89%
Marathon Petroleum Corp.
7.85%
EQT Corp.
5.86%
Constellation Energy Corp.
5.71%
The Williams Cos., Inc.
5.67%
Energy Transfer LP
5.53%
Cheniere Energy, Inc.
5.33%
Occidental Petroleum Corp.
4.59%
Diamondback Energy, Inc.
4.56%
ONEOK, Inc.
4.51%
Targa Resources Corp.
4.48%
Plains GP Holdings LP
4.33%
MPLX LP
4.25%
Devon Energy Corp.
3.60%
Antero Resources Corp.
3.37%
IEO
ConocoPhillips
17.26%
Valero Energy Corp.
10.54%
Marathon Petroleum Corp.
10.17%
EOG Resources, Inc.
6.56%
EQT Corp.
4.84%
Texas Pacific Land Corp.
4.77%
Phillips 66
4.46%
Diamondback Energy, Inc.
4.29%
Devon Energy Corp.
4.25%
Expand Energy Corp.
4.10%
Ovintiv, Inc.
2.73%
Permian Resources Corp.
2.73%
APA Corp.
2.17%
HF Sinclair Corp.
2.01%
Antero Resources Corp.
1.95%
Frequently asked questions about TNGY and IEO
How have the TNGY and IEO ETFs performed in 2026?
As of July 30, 2026, TNGY is up 18.63% year-to-date (YTD), while IEO has returned 40.56%. That puts IEO better performer ahead so far this year.
Which ETF is attracting more investor money: TNGY or IEO?
Year-to-date, the TNGY ETF saw -$25M in flows, compared to -$7M for IEO.
Which ETF is more volatile: TNGY or IEO?
Over the past year, TNGY had a volatility of 15.52%, while IEO experienced 25.9%.
Which ETF is bigger: TNGY or IEO?
As of July 30, 2026, TNGY holds $548.85 M in assets under management (AUM), while IEO manages $565.77 M.
What sectors do the TNGY and IEO ETFs invest in?
TNGY leans toward sectors like Energy and Utilities. Meanwhile, IEO focuses on Energy.
What are the top holdings of the TNGY ETF and IEO ETF?
TNGY top holdings include Valero Energy Corp., Marathon Petroleum Corp. and EQT Corp.. IEO holds in its top three: ConocoPhillips, Valero Energy Corp. and Marathon Petroleum Corp..
Which ETF is more diversified: TNGY or IEO?
TNGY holds 26 securities with 77.53% of its assets in the top 15. IEO has 47 securities and a top 15 weight of 82.83%.
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Latest news about TNGY & IEO
Crude and Natural Gas Markets on the Move
August 12, 2024
IEO
War in the Middle East: ETF Movers & Shakers
May 15, 2024
IEO
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