XLF has now rallied another 3.6% in a single week to $54.35, and the short base built over the past six weeks has done nothing but lose money.
The tug-of-war described in last week's note has not resolved — it has intensified. Short interest held near its elevated plateau, ending the week at roughly 145.9 million shares, or 14.9% of free float. That is effectively unchanged from the 144.8 million recorded on June 9, but it remains the highest short base in the 30-day window and represents a near-doubling from the ~103 million shares outstanding on loan in late May. Shorts have not capitulated. The borrow market, however, gives no sign of pressure: cost to borrow has eased slightly to 0.51%, down 3% on the week and 7% over the past month. Availability has loosened sharply — up 55% week-on-week to 541%, well within the normal range and far above the 52-week trough of 47%. That combination — large short base, cheap borrow, ample availability — describes a position that is uncomfortable but not squeezed. There is no mechanical pressure forcing shorts to cover.
Options positioning tells a different story from the short book. The put/call ratio has fallen to 1.32, more than two standard deviations below its 20-day mean of 1.54 — a sharp shift away from the defensive posture that characterised most of May and early June. The 52-week range runs from 0.88 to 1.98, so the current reading is neither extreme by absolute standards, but the pace of the move toward call-side dominance is notable. Over the past month the PCR has dropped steadily from the 1.68 area to where it sits now. Options traders, in aggregate, have been covering protection and adding upside exposure into the rally — the opposite of what the short book implies.
The institutional holder list adds useful texture. JPMorgan Chase holds 142 million shares — close to the entire current short interest — and added 49 million shares in the quarter ending March 31. Morgan Stanley and Wells Fargo also added meaningfully. These are not passive flows; several of the top holders are the same banks that constitute the fund's largest underlying positions, creating a structural overlay that complicates the short thesis. Shorts are, in effect, betting against a sector whose key players have been actively accumulating the very ETF that tracks them.
The ORTEX short score has drifted down to 57.1 from a recent peak of 63.2 on June 4 — a meaningful four-point pullback that tracks the price strength. The score is still above the mid-point, suggesting the overall data picture remains moderately bearish in aggregate, but the trend has been softening all week. That softening aligns with the options shift and the continued price climb.
The next inflection to watch is whether the short base begins to shrink meaningfully. Six weeks of accumulation that has consistently failed to push the ETF lower is the classic setup for a positioning unwind — though the ample availability and low borrow cost mean there is no near-term deadline forcing that decision.
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