USO vs USOI: Weighing Direct Crude Exposure Against Covered Call Income

Key Takeaways

• USO is a commodity pool that tracks near-month West Texas Intermediate (WTI) crude oil futures, while USOI is an exchange-traded note (ETN) that sells covered calls against USO to generate monthly income.
• The two vehicles are not direct substitutes: USO offers pure directional crude exposure, whereas USOI prioritizes variable income at the cost of capped upside.
• USO is larger and more liquid, holding roughly $1.8 billion in assets versus roughly $300 million for USOI, which also carries issuer credit risk as unsecured debt of UBS.
• USO carries an expense ratio of approximately 0.60%, while USOI applies a 0.85% annual investor fee plus notional transaction costs and variable monthly distributions.
• USO issues a Schedule K-1 tax form and pays no dividend; USOI pays an uncapped but variable monthly coupon and typically reports on standard tax forms.
• Tickeron AI Verdict: USO — its direct commodity exposure, superior liquidity, structural simplicity, and absence of capped returns and counterparty credit risk make it the favored ticker of the two.

Introduction

Crude oil has re-emerged as a focal point for investors navigating supply disruptions, geopolitical tension, and shifting energy policy. Within this environment, two similarly tickered products — USO and USOI — are frequently compared, yet they are fundamentally different instruments serving different goals. This comparison clarifies that USO is a commodity pool offering direct oil-price exposure, while USOI is an exchange-traded note that monetizes oil-market volatility through a covered-call strategy. Understanding their structural differences, cost profiles, and relative positioning is essential before committing capital to either. I also checked this using Tickeron’s AI Screener to see how the two line up against other energy vehicles.

United States Oil Fund (USO) Overview

The United States Oil Fund, LP (USO) is a Delaware limited partnership — technically a commodity pool rather than a traditional registered fund — that seeks to have its daily percentage changes track the daily changes in the spot price of light, sweet crude oil delivered to Cushing, Oklahoma. It does so primarily by holding near-month West Texas Intermediate (WTI) crude oil futures contracts traded on the NYMEX, rolling into the next-month contract over a scheduled period each month.

The portfolio holds roughly 20 positions, concentrated in front-month crude oil futures and total return swaps, with the remainder held in Treasury bills and money-market funds as collateral. There is no equity sector allocation, as exposure is entirely commodity-linked. USO charges an expense ratio of approximately 0.60%, does not pay a dividend, and is structured as a partnership, meaning investors receive a Schedule K-1 rather than a standard 1099. Its size — around $1.8 billion in assets — and deep trading volume make it one of the most liquid vehicles for expressing a directional view on crude. From what I see, this simplicity stands out when comparing it to more complex wrappers.

Credit Suisse X-Links Crude Oil Shares Covered Call ETN (USOI) Overview

The Credit Suisse X-Links Crude Oil Shares Covered Call ETN (USOI) is an exchange-traded note (ETN), not an ETF — a senior, unsecured debt security originally issued by Credit Suisse AG and now an obligation of UBS following its 2023 acquisition. USOI is linked to the price-return version of the Credit Suisse Nasdaq WTI Crude Oil FLOWS 106 Index, which tracks a covered-call strategy on USO: it notionally holds a long position in USO while selling call options roughly 6% out-of-the-money each month.

The premiums collected flow to investors as a variable monthly distribution, which can rise sharply when oil-market volatility (implied volatility in options pricing) increases but can also fall to low levels in calm markets. USOI applies a 0.85% annual investor fee plus notional transaction costs, has a maturity in 2037, and manages roughly $300 million in assets. Because it is an unsecured note, holders face issuer credit risk, and its upside participation is structurally capped in strong rallies.

Industry and Thematic Backdrop

Both products are shaped by the same underlying energy cycle. Crude oil prices in recent market cycles have been driven by supply management from major producers, inventory draws, sanctions, shipping-route disruptions, and fluctuating global demand expectations. These forces influence both the level of oil prices and the level of implied volatility, which in turn determines the size of USOI's distributions. Rising interest rates also matter indirectly: they influence the yield earned on the Treasury and money-market collateral held inside USO, and they affect the relative appeal of income-oriented strategies. Investors should recognize that the two vehicles are exposed to the same commodity but monetize it through entirely different mechanisms. One thing that stands out here is how volatility levels directly shape USOI’s income potential.

Performance and Positioning Comparison

In recent weeks and months, rising crude prices have tended to favor USO, whose returns track oil futures more directly. USOI, by contrast, has lagged during sharp rallies because its sold call options cap participation above the monthly strike, while its distributions have partially offset that gap. In calmer, range-bound markets, USOI's income generation becomes relatively more attractive, and its downside is modestly cushioned by premium income. From a volatility standpoint, USOI introduces an additional layer of risk — counterparty credit risk from its issuer — that USO does not carry, since USO holds segregated commodity and cash assets. This difference in risk architecture is central to their relative positioning. I’m watching this closely because the structural trade-offs become clearer in different market regimes.

Using Tickeron’s AI Tools in My Research

When comparing vehicles like these, I often turn to Tickeron’s AI Screener to quickly filter energy-related products by liquidity, volatility, and structural features. It helps surface how USO stacks up against peers on metrics such as asset size and trading volume, while also highlighting income characteristics for options-based strategies. This approach keeps the analysis grounded in data without requiring hours of manual review, and it aligns well with the factors I weigh most heavily here.

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.

Disclaimers and Limitations

Contributor

Sergey Savastiouk|Expert

Sergey Savastiouk, Ph.D. has a degree in Applied Mathematics from Moscow University and has extensive experience as an entrepreneur, investor, manager, and mathematician. His professional expertise is in applied mathematics, mathematical modeling, system and pattern analysis, and software and hardware system integration. He has served as the CEO of several hi-tech start-up companies and nonprofit organizations, which has given him proven capabilities in business strategy for high-tech start-up companies, market assessment, company formation, team building, product development, marketing, and sales. He has published numerous articles in journals and magazines on related fields. As a retail investor, he spent 15 years developing his proprietary trading and quantitative algorithms (now Tickeron’s A.I.), which brought him significant returns in trading the stock market. His current work and goal in founding Tickeron is to bring professional, sophisticated stock market analysis capabilities to retail investors via an easy-to-use interface.

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