Why this matters — Three distinct ORTEX data signals have aligned on XLB, the Materials Select Sector SPDR ETF, within days of each other. The combination of near-maximum short utilization, a sharp single-session drop in short interest, and a 52-week low in the put/call ratio presents a rare and contradictory convergence.
Options sentiment hits a 52-week extreme. XLB's put/call ratio fell to 0.59 on April 24 — the lowest in 52 weeks and 1.62 standard deviations below its 20-day mean of 1.09. That is a decisive shift toward calls. As recently as mid-April, the PCR sat above 1.23. The swing represents a rapid repositioning in the options market toward bullish exposure.
Utilization near its ceiling. Short sellers are competing hard for borrowed shares. Utilization hit 97.06% on April 24, just below the 52-week peak of 100%. The metric has repeatedly touched 100% since late March — on April 3, 6, 7, and 9. Shares to borrow are scarce. That constrains any further build in short positions.
Short interest falls sharply. Despite that tight borrowing environment, estimated short interest dropped 10.6% in a single session on April 24, falling to approximately 16.3 million shares. Over the past month, short interest has declined 22.2%. Short sellers appear to be covering, not adding. The one-week change is also negative at -3.7%.
Susquehanna International Group added 3.02 million shares in its last reported period, making it one of the largest position increases among top holders. Millennium Management also added 1.57 million shares. Both are notable given the elevated short interest environment. The ORTEX short score stands at 64.2 — moderately elevated — consistent with ongoing but easing short pressure. Cost to borrow rose 25.9% over the past month to 0.76% APR, a modest but steady upward move that reinforces the tightening supply of lendable shares.
Utilization hit 100% repeatedly during early April 2026, coinciding with peak short interest near 20 million shares. That peak has since unwound by 22%, suggesting the current high-utilization, low-PCR setup follows a pattern of shorts building at stress peaks and then covering as sentiment shifts.
See the live data behind this article on ORTEX.
Open XLB 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.
