The United States Oil Fund, LP (USO) closed at $143.35 on September 30, 2026, marking a decline of 4.43% over the prior 24-hour period. The single-session drop stood out against an otherwise constructive recent backdrop for the oil-linked exchange-traded fund.
Over the trailing seven days, USO posted a modest loss of 0.48%, suggesting the bulk of the day's pressure was concentrated in the most recent session. The fund's 30-day performance, however, told a different story, with USO up 10.56% over that longer window.
The divergence between the short-term pullback and the stronger monthly trend reflects the volatility often associated with commodity-linked funds. USO tracks oil price movements and can be subject to sharp intraday swings driven by broader energy market conditions.
No market capitalization figure was available for USO as of the close of trading. The fund's price action on September 30 underscored the day-to-day variability that can accompany even periods of broader monthly strength in oil-related assets.
