Semiconductor bears are feeling the heat. SOXX short interest has dropped sharply over the past month — yet the borrow market is tightening fast, creating a contradictory and volatile setup.
Short interest fell roughly 17% over the past month. Shorts outstanding now stand at about 15.3% of float. The direction of travel is clear: bears have been covering.
But the borrow market tells a different story right now. Availability has tightened dramatically this week. Utilization hit 90.72% on May 7 — up from just 46.56% on May 1. That means roughly one share remains available for every ten already lent out. A week ago, the pool was more than twice as loose.
Cost to borrow jumped 52% in a week to 1.38% APR. That is still modest in absolute terms. But the speed of the move matters. Bears who covered last month may have done so for good reason.
The put/call ratio sits at 3.33 — well above the 20-day mean of 2.64. The z-score is 1.61, pushing toward the upper range of recent norms. The 52-week high is 3.73, so there is still room to run. But the direction is clear: options positioning is skewing defensively.
Puts outnumber calls by more than three to one. That is a meaningful hedge signal for a fund that surged 43% in a single month.
SOXX climbed 43% in the past month. It fell 2.9% on May 7 alone. That kind of volatility attracts hedgers. It also squeezes anyone still short — 5.3% more shares were borrowed in a single day on May 7, even as the overall short base has shrunk.
The ORTEX short score rose to 65.9 on May 7, up from 59.4 just nine days earlier. It is approaching territory that has historically flagged elevated borrow friction.
Goldman Sachs holds 5.3% of shares. Morgan Stanley added 545,000 shares as of December. Large institutional holders create a relatively concentrated lending pool — which helps explain why availability can tighten this sharply, this fast.
Data summary
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