IYE vs PXI

Key Takeaways

• Different methodologies: IYE is a passive, market-cap-weighted index fund, while PXI selects and weights holdings by relative price momentum.
• Concentration vs. breadth: IYE is top-heavy, with its top two mega-cap oil majors dominating; PXI spreads weight more evenly across roughly 44 names, including mid- and small-cap energy companies.
• Cost gap: IYE carries a net expense ratio of about 0.37%, versus roughly 0.60% for PXI.
• Cap-tilt differences: IYE is overwhelmingly large-cap, while PXI holds a meaningful mid-cap and small-cap allocation.
• Risk profile: IYE's concentrated mega-cap structure can produce different volatility and drawdown behavior than PXI's momentum-driven, more diversified tilt.

Introduction

Investors seeking U.S. energy exposure often assume that all energy exchange-traded funds (ETFs) behave alike, but IYE and PXI illustrate how two funds in the same sector can be structured very differently. Both funds target energy equities, yet they are not direct substitutes: IYE delivers broad, capitalization-weighted coverage of the U.S. energy sector, while PXI pursues a momentum-based strategy that rotates toward the strongest recent performers. Understanding these structural distinctions—index design, cost, concentration, and rebalancing—is essential for building an informed sector allocation in the current macro environment.

iShares U.S. Energy ETF (IYE) Overview

IYE is a passively managed ETF from BlackRock that seeks to track the Russell 1000 Energy RIC 22.5/45 Capped Index, a benchmark measuring the performance of the U.S. energy sector within the broader large-cap equity market. The fund typically holds around 40 securities, though its weight is heavily concentrated among the largest integrated oil and gas producers. Its top holdings include ExxonMobil (XOM), Chevron (CVX), ConocoPhillips (COP), Marathon Petroleum (MPC), Valero Energy (VLO), Phillips 66 (PSX), Williams Companies (WMB), EOG Resources (EOG), SLB (SLB), and Kinder Morgan (KMI). The top 10 positions represent roughly 70% of total assets, with the two largest names alone accounting for a substantial share. Sector allocation is nearly all energy, and the fund's net expense ratio is approximately 0.37%.

Invesco Dorsey Wright Energy Momentum ETF (PXI) Overview

PXI is an ETF from Invesco that tracks the Dorsey Wright Energy Technical Leaders Index, a rules-based benchmark designed to identify U.S. energy companies exhibiting the strongest relative strength, or momentum, characteristics. The fund typically holds around 44 securities and is reconstituted and rebalanced quarterly. Its largest positions recently included Targa Resources (TRGP), Marathon Petroleum (MPC), Permian Resources (PR), Liberty Energy (LBRT), Viper Energy (VNOM), Williams Companies (WMB), Valero Energy (VLO), Chevron (CVX), Baker Hughes (BKR), and Devon Energy (DVN). Unlike IYE, PXI's top 10 holdings represent a smaller share of assets, and the portfolio includes a sizable mid-cap and small-cap tilt. Energy accounts for the vast majority of exposure, with a modest basic-materials sleeve. PXI's expense ratio is approximately 0.60%.

Industry and Thematic Backdrop

Both ETFs operate within a cyclical energy landscape shaped by global crude oil and natural gas prices, OPEC+ supply policy, domestic shale production, and refining margins. In recent market cycles, energy equities have benefited from resilient demand, capital discipline among producers, and a preference for returning cash to shareholders through buybacks and dividends. At the same time, the sector remains sensitive to recession risk, interest rate expectations, and geopolitical disruptions. Regulatory developments around emissions and pipeline permitting also influence midstream and integrated operators. These forces affect both funds, though IYE's mega-cap weighting makes it more closely tied to the largest integrated producers, while PXI's momentum methodology can shift toward midstream, refining, and oilfield-services names as relative strength rotates.

Performance and Positioning Comparison

Over recent months and market cycles, both funds have generally tracked the broader energy rally, but their relative positioning has diverged in meaningful ways. IYE's heavy concentration in mega-cap integrated producers has tied its returns closely to the fortunes of a handful of large names, producing lower diversification but often steadier behavior during broad market rallies. PXI's momentum-driven, more evenly distributed portfolio has shown greater sensitivity to rotation within the energy complex, tilting toward the strongest recent performers across midstream, refining, and services. This design can amplify participation in leadership shifts but may also introduce more frequent turnover and higher tracking deviation. On a cost basis, IYE's lower expense ratio provides a structural head start, while PXI's higher fee reflects its more active, rules-based selection process.

AI Screener

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Tickeron AI Verdict

Based on observable structural factors, Tickeron's AI would likely favor IYE for most long-horizon energy allocations. Its materially lower expense ratio, high liquidity, and exposure to financially resilient mega-cap integrated producers offer a cost-efficient and relatively stable way to capture sector beta (broad market sensitivity). PXI's momentum methodology can be attractive during strong, persistent energy trends, but its higher fee, greater turnover, and mid- and small-cap tilt introduce additional volatility and style risk. The AI's probabilistic assessment therefore leans toward IYE for diversified, low-cost exposure, while acknowledging that PXI may offer relative-strength advantages in environments of sustained sector leadership. This analysis is not personal investment advice.

Disclaimer

The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer.

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