If you’ve ever stared at a ticker yielding north of 30% and wondered what the catch was, Credit Suisse X-Links Crude Oil Shares Covered Call ETN (NASDAQ:USOI) is the catch made visible. USOI is the rare instrument that pays you a fat monthly check tied to crude oil through a structure most investors misread on first glance. USOI is an exchange-traded note, a piece of unsecured bank paper that behaves like a high-yield income product. And after April’s $7.4743 distribution, it has the market’s attention.
The product is a UBS exchange-traded note, which is a fancy way of saying unsecured senior debt of UBS (NYSE:UBS | UBS Price Prediction) with a payout linked to a covered-call strategy on United States Oil Fund (NYSE:USO). Per the prospectus terms cited in our brief, USOI carries a 0.85% investor fee and a 2037 maturity date. Credit Suisse originated the note. After the 2023 rescue, UBS inherited the obligation, which is why your monthly coupon now depends on a Swiss bank with a $134.5 billion market cap.
How the income engine actually works
The mechanics are simpler than the wrapper. USOI tracks a notional position in USO and writes monthly covered calls against it. You collect the option premium as a variable distribution, and you give up the upside above the strike. In a calm oil market, the premiums roll in and the ticker behaves like a high-yield income sleeve. In a fast oil rally, the calls get exercised in spirit, the upside gets capped, and you watch crude run away from you while still cashing checks.
That dynamic is on full display right now. WTI ran from a $66.96 baseline in late February to a $114.58 peak on April 7, driven by the 2026 Iran conflict, the brief Hormuz closure, a ceasefire that’s teetering on the brink of a collapse. Crude has since settled above $100.
The honest performance test
Here is where the marketing meets the math. Over the past year, USOI returned 56% on a price basis. USO, the underlying, returned 131%. Year to date the gap is 47% versus 113%. Stretch the lens to five years and the picture gets uglier: USOI is up 43% while USO is up 231%.
The distributions soften that gap, and 2026’s monthly checks have been generous. April alone paid $7.4743, roughly 5.8x the March payout, on a share trading near $58. Even reinvested, the income stream has not closed the chasm with USO during this rally. That is the structural cost of selling calls into a geopolitical spike.
The tradeoffs you are actually accepting
- Capped upside in the rallies you bought oil exposure for. The 2026 spike is the textbook scenario where covered calls hurt most, and the return gap proves it.
- UBS credit risk. An ETN is unsecured paper. UBS looks healthy, with a 15 P/E, 84% quarterly earnings growth, and shares up 220% over five years, but credit risk is still on the menu through 2037.
- Income volatility. 2025 distributions ranged from $0.3835 to $2.4854. The cadence is reliable; the size of each check is anything but.
Who USOI actually fits
USOI makes sense as a small tactical income sleeve for investors who want a crude-linked coupon, accept that they will lag USO in any sharp rally, and are comfortable holding UBS unsecured debt until 2037. For anyone trying to express a directional bullish view on oil, USO itself has done the heavier lifting and will continue to. The covered-call wrapper is a feature for income harvesters and a tax on price seekers, and the 2026 oil spike has made that distinction unusually expensive to ignore.
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