USO (United States Oil Fund LP) is an oil ETF that tracks WTI futures. Current price: $116.04 (-7.79% for the day) Yesterday's close: $125.84 Volume: 38.3 million Key metrics: • Annual return: 87.81% • Volatility: 40.24% • Sharpe ratio: 2.30 • AUM: significant (exact data to be verified) Structural features: 1. USO is a commodity pool (LP), not a traditional ETF 2. Uses futures, not physical oil 3. Subject to contango effect (rollover losses) 4. Does not pay regular dividends Risks: • High volatility (40%+) makes it a tactical instrument • Structural losses during long-term holding • Dependence on futures market conditions Conclusion: USO is an indicator of oil market sentiment, but not a long-term investment instrument. Suitable for tracking short-term trends and speculative strategies.