EUSA, the iShares MSCI USA Equal Weighted ETF, closes the week with an oddly active lending market for a fund this lightly shorted.
Short interest is negligible at just 0.5% of float — not a number that normally warrants a second look. But the surrounding borrow data tells a more animated story. Cost to borrow has climbed nearly 19% on the week to 3.47%, reversing sharply from a mid-week dip to 1.83% on July 13. The move is notable against a backdrop where shares short have actually fallen by more than a third over the past month, dropping from a mid-July peak near 123,000 shares to roughly 69,000 today. That combination — fewer short positions yet rising borrow costs — points to friction in the lending pool rather than a wave of new bearish conviction.
Availability has loosened considerably from a stressed period in early June, when it dropped to near 5.8% — essentially every share in the lending pool was out on loan. That tightness has since unwound, with availability now back above 100%, meaning shares available to borrow roughly match the current short interest. The ORTEX short score has also drifted lower all week, easing to 47.1 from a peak of 50.2 on July 7 — a signal that short-side pressure is fading rather than building.
The ownership picture reinforces the point that this fund is held for long purposes, not traded tactically. Stifel Asset Management holds close to 49% of reported shares, with Merrill Lynch and Henshaw Capital together accounting for another 42%. These are wealth-management and advisory positions — sticky, low-turnover holders who are unlikely drivers of the lending volatility. LPL Financial added the most aggressively in the last reported quarter, building by 117,846 shares to bring its stake above 6%.
Options activity is essentially absent — the put/call ratio has printed zero for nearly every session over the past month, and the thin activity that did appear in mid-June (a PCR reading around 0.14) has since dropped away entirely. That absence of options hedging is consistent with the ETF's role as a buy-and-hold diversification vehicle rather than a trading target.
The week's most important variable to monitor is whether borrow cost volatility persists, given that the last time availability tightened this sharply — early June's squeeze to near-zero availability — it resolved within two weeks but left cost-to-borrow elevated above its prior baseline for the sessions that followed.
See the live data behind this article on ORTEX.
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