GDX enters the second week of July with a notable contradiction at its core: short interest has climbed 20% over the past month to 15.2% of the free float, yet the borrow market has simultaneously loosened considerably — availability now runs at 167%, having tightened sharply from above 280% just five days ago.
The clearest development this week is the sudden spike in cost to borrow. Borrowing GDX shares has become nearly three times more expensive over seven sessions, with the annualised rate jumping from around 0.31% to 0.91% — a move that, in percentage terms, is the sharpest rise in the past 30 days and pushes the rate to its highest level of the recent period. That said, 0.91% remains cheap in absolute terms; the lending market is not under stress. The more telling signal is directional: borrow costs spent most of June drifting between 0.12% and 0.52%, and this week's acceleration stands out against that backdrop. Availability has tightened meaningfully in five sessions — dropping from 287% to 167% — but remains well outside the squeeze territory the fund touched earlier this year, when availability briefly fell to 9.3%.
Short interest itself tells a story of gradual accumulation. The 20% rise over the past month brings the short position to roughly 46 million shares — a level that has since edged slightly lower over the past week, easing about 2% from its mid-June peak. The ORTEX short score of 65.5 sits in elevated territory, consistent with a fund where bears hold meaningful conviction but have not yet pushed to an extreme. Days-to-cover of 1.8, per the most recent FINRA fortnightly data, suggests there is no mechanical squeeze dynamic building.
Options positioning reinforces the cautious tone. The put/call ratio has been running well above its 20-day average, closing at 1.24 against a mean of 1.15 — not a dramatic divergence, at less than one standard deviation above normal, but the ratio has held consistently above 1.2 for the past two weeks. That compares to readings below 1.0 in early June, pointing to a gradual shift toward defensive positioning that has tracked the month's short interest build. The 52-week range on the PCR spans 0.91 to 2.06, so current levels are elevated but far from an extreme.
On the institutional side, the most interesting Q1 filing moves came from opposite directions. Goldman Sachs added over 5.4 million shares in the quarter, while JPMorgan built a position of more than 4.1 million new shares — both large additions for a fund where most top holders are incremental movers. Against that, Wells Fargo cut its position by 3.2 million shares and UBS trimmed by 1.5 million. BMO Asset Management remains the largest disclosed holder at 5.4% of shares, having added roughly 3.2 million shares in Q1. The net institutional picture is modestly constructive, with bulge-bracket banks on balance adding exposure even as some asset managers reduced.
With no scheduled earnings catalyst for the ETF itself, the next read on direction comes from the underlying gold market and from how the short position evolves through July. Short interest has been building for a month, cost to borrow is accelerating, and options buyers are leaning defensive — the setup warrants watching whether availability continues to tighten from its current 167% toward the tighter levels seen earlier this year.
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