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IREN has lost 16% in a week, the lending pool has snapped back to near-maximum tightness, and short interest has pushed to a new recent high, putting the stock in an increasingly compressed position ahead of November 6 earnings.
The lending market is the sharpest signal this week. Availability has dropped back to 5.1%, meaning roughly one share remains available for every nineteen already borrowed. That reverses what had looked like a genuine reopening of the pool two weeks ago, when availability briefly touched 23.9% on October 5. The pool is again fully drawn, with every available share out on loan. Borrow cost has moved in the same direction, rising to 1.04%, up 5% on the week and 18% over the past month. These are not extreme absolute levels, but the direction and speed of the reversal tell the same story as last week: any loosening in this name has been temporary, and demand to hold the short is persistent.
Short interest has extended its climb. Bears now hold 86.7 million shares short, equivalent to 30.6% of the free float. That is up 10% in a week and is the highest level since early September, reversing the bulk of the covering that reduced the position by 21% across September. The ORTEX short score of 68.5 ranks in the 6th percentile of the universe, consistent with a structurally heavy short book. The stock's own peer group has been hit hard too: KEEL dropped 17% on the week, CLSK fell 17%, CIFR shed 27%, and WULF lost 12%. IREN's 16% decline is steep but not an outlier in this cohort.
The Street is divided sharply on what IREN is worth. The bull case rests on a vertically integrated AI infrastructure platform with 5GW of potential power capacity, sold-out 2026 capacity, multi-year Microsoft contracts, and roughly $1B in annualised GPUaaS revenue. Most analysts remain positive: JP Morgan upgraded to Overweight in mid-September with a $65 target, Northland initiated at Outperform with a $99 target, and the consensus mean target sits near $78, more than double the current price of $34.80. B. Riley trimmed its target to $91 from $96 at the end of September while keeping a Buy rating. Rothschild initiated at Neutral with a $40 target, the lone cautious new voice on the register. The bear case is harder to dismiss at these levels: F4Q26 adjusted EBITDA was only $19.2M, a 14% margin, alongside a $684M GAAP net loss, and legacy bitcoin mining revenue is shrinking rapidly as hash rate falls. Despite the Street's optimism, options positioning is not particularly defensive. The put/call ratio of 0.71 is only fractionally above its 20-day average of 0.69, suggesting options traders are not adding meaningful hedges around the earnings date.
Institutional flows add one more layer to watch. Goldman Sachs disclosed a 9.4% passive stake in August, and BlackRock added 8.9 million shares in its most recent filing, reported as of September 30. Those are large passive accumulations in a stock that simultaneously carries 30% short interest. Kenneth Griffin's stake has slipped from 5.0% to 4.7% in the most recent filing, while Jane Street trimmed from 6.4% to 4.7%. The picture is one of large passive buyers absorbing shares that active and systematic sellers continue to press.
With earnings on November 6, the next three weeks become a question of whether short sellers hold conviction at these levels or whether the combination of a large passive bid and a heavily extended position starts to create friction in the lending market again.
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