UCO Is Up 125% This Year but a Hidden Structural Risk Could Erase the Gains

Growing significantly in 2026, ProShares Ultra Bloomberg Crude Oil 2x (NYSEARCA:UCO) has become one of the most talked-about tickers on Reddit this month, and the catalyst arrived at full force: UCO is up 73% over the past month as the geopolitical shock retail traders had been positioning for took hold. The catalyst is the 2026 Strait of Hormuz crisis, sparked by U.S.-Israeli strikes on Iran in late February that triggered retaliatory attacks on merchant shipping and sent crude surging to levels not seen in years. UCO, which delivers 2x the daily return of WTI crude, amplified every move.

As a result of world events, WTI climbed from roughly $22 to nearly $43, pushing UCO sharply higher. The ETF now sits at $43.52, up 125% year to date. That is the war windfall in plain numbers.

r/WallStreetBets Is Long Hormuz and Holding

Reddit’s r/wallstreetbets has driven UCO discussion, with sentiment scores ranging from 66 to 78 across the past two weeks, consistently bullish. Two posts dominated the conversation.

“$UCO – Strait of Hormuz Gains” peaked at 308 upvotes and 36 comments on March 8. “Long Oil into the Weekend on Continued Shipping Chaos OSINT” grew from 61 upvotes on March 14 to 212 upvotes and 148 comments by March 16, a sign the thesis kept resonating as disruptions continued.

$UCO – Strait of Hormuz Gains
by u/wallstreetbets in wallstreetbets

Long Oil into the Weekend on Continued Shipping Chaos OSINT
by u/wallstreetbets in wallstreetbets

The bullish case rests on three points:

• Tanker traffic through the Strait of Hormuz dropped approximately 70% after Iran launched 21 confirmed attacks on merchant ships, disrupting global seaborne oil supply
• WTI at $93.39 sits at the 98.4th percentile of its 12-month range, meaning supply shock pricing is already embedded in the market
• The composite sentiment score for UCO sits at 64.76 with a “medium confidence” bullish reading, suggesting conviction without full consensus

The Contango Trap Waiting on the Other Side

The structural risk for UCO holders is not geopolitical reversal, but that it resets its 2x leverage every trading day, which means in choppy or sideways markets, volatility decay quietly erodes value even when crude goes nowhere. Over the past decade, UCO has lost 67% to 70% of its value despite crude oil remaining a commodity throughout, a direct consequence of that daily reset mechanism.

The VIX adds another layer: after spiking to 29.49 on March 6, it has since fallen to 22.37, a decline that historically signals the environment in which leveraged ETFs bleed most. If the Hormuz situation de-escalates on any ceasefire or diplomatic front, March 16 already demonstrated how quickly the reversal can unfold. At 2x leverage, UCO holders feel that twice.