Three converging signals are firing on USO simultaneously. The lending pool is exhausted, borrow costs have doubled in a month, and options traders are piling into puts — all as crude oil prices bounce.
Availability on USO has dropped to zero. Every share in the lending pool is currently out on loan, matching the 52-week peak. This is not a gradual tightening — utilization jumped from 86% to 100% in a single session on May 5.
The cost to borrow tells the same story. CTB hit 14.34% APR on May 4. That is up 59% in one week and up 112% over the past month. As recently as April 15, the borrow rate was under 4%. It has since tripled.
Short interest sits at 92.4% of free float — reflecting USO's structure as a commodity fund where creation/redemption mechanics make this figure behave differently than a typical equity. But the directional move matters: short shares rose 4% over the past week to roughly 12.2 million.
The put/call ratio on USO stood at 1.63 on May 5. The 20-day mean is 1.52. The ratio has drifted steadily higher since late April, when it sat closer to 1.39. That shift indicates growing demand for downside protection.
The 52-week PCR range for USO runs from 0.56 to 2.52. At 1.63, the current reading is elevated but not extreme. The direction of travel — rising PCR alongside rising borrow cost — is the signal worth watching.
The ORTEX short score for USO reached 71.6 on May 4, up from 70.5 two weeks earlier. The score has risen every day in the tracked window. It now sits in territory that reflects broad bearish positioning pressure across lending, short interest, and options simultaneously.
The backdrop is notable. USO gained 3.3% last week and is up 4.5% over the past month. Short sellers are adding exposure and paying more to borrow — even as the fund rallies.
See the live data behind this article on ORTEX.
Open USO on ORTEX →ORTEX Market Intelligence content is generated by AI from a snapshot of ORTEX's proprietary data. Content is informational only and does not constitute investment advice.
