XHB borrow stays tight as short interest holds at record levels

XHB enters the week with short interest pinned at record highs and an options market that has been structurally defensive for months, leaving bears well-entrenched and the borrow pool close to exhausted.

The positioning story has not materially changed since Tuesday's note, but the data confirms the pressure is holding rather than easing. Short interest remains at 45.4% of free float, the highest level on record for this ETF, and has ticked up a further 1.9% in the latest session. That is a slow grind higher, not a sudden spike, which matters: it suggests shorts are adding incrementally rather than a single large participant driving the number. Over the past month the position has grown by 5.4%, pointing to a persistent and deliberate build rather than a momentum-driven pile-on.

The borrow market tells the same story. Availability has tightened back to 28.4%, meaning roughly one share remains available to borrow for every three already lent out. That is an improvement from 7% on 26 October, when the pool nearly ran dry, but it is still well below the levels that prevailed through most of September and early October, when availability regularly exceeded 100%. Cost to borrow has moved with it, rising 71% over the past week to 2.35%. That is below the early-October peak of 4.07% but the direction is consistent. The 52-week minimum availability on this ETF is 0.71%, a level reached at the late-October crunch point, and the history shows the pool can refill quickly when ETF creation mechanics kick in. For now, there is no sign of that replenishment taking hold.

Options positioning reinforces the bearish lean without amplifying it. The put/call ratio is 1.52, running in line with its 20-day average of 1.54 and barely a fraction of a standard deviation below it. That near-perfect alignment with recent norms is itself notable: XHB options buyers have been persistently skewed toward puts for weeks, with the PCR touching 1.82 in mid-October. The 52-week low for the PCR is 0.22, a level that now looks like a distant memory. Options traders are not adding fresh fear here, they are simply maintaining what has become a structurally defensive posture.

The ORTEX short score of 71.9 reflects the elevated combined signal from short interest, borrow tightness, and options skew. That score has been relatively stable over the past two weeks, oscillating between 67.6 and 71.9, suggesting the market's read on this ETF's risk profile has settled into a range rather than escalating further. The ETF closed at $101.98 on Tuesday, down 2.5% on the day but up 2.8% on the week, with a one-month gain of 5.5%. Bears have been adding to positions into price strength, which raises the question of whether a continued rally would force covering, but that is a function of price action yet to come.

What to watch next: whether the borrow pool tightens again toward the 7% availability seen in late October, and whether the gap between record short interest and a rising price creates the conditions for an ETF creation event that could suddenly replenish lending supply.