EWY is now deep in the stress zone that the previous note warned was approaching — short interest has pushed to 35.4% of free float, the borrow pool is nearly exhausted, and the ETF just posted a 12% single-day loss.
The borrow market has tightened dramatically since the June 17 note. Availability has collapsed to just 9.6% — roughly one share left for every ten already borrowed — down from 28.8% on Monday and 84% a week ago. That is the sharpest single-week tightening in recent history, erasing nearly all the breathing room that had opened up after the May squeeze episode. In mid-May, availability hit a 52-week low of 0.21% with the lending pool fully exhausted. The current reading is heading back toward that level at pace. Cost to borrow, at 0.81%, has actually eased 22% on the week — a notable contrast, suggesting the squeeze pressure is building in volume rather than price for now.
Short interest itself has accelerated. Bearish positioning reached 35.4% of free float on Tuesday, up from 32.8% when the last note was filed, and up nearly 59% over the past month. The rebuild from late May has been relentless: short shares rose from roughly 15 million in mid-May to nearly 27 million now. That is a significant structural shift in how the market is positioned against Korean equity exposure. The ORTEX short score is running at 67.8, its highest reading of the past two weeks, consistent with this sustained directional pressure.
Options positioning has eased slightly relative to its recent extremes. The put/call ratio is running at 1.63 — still firmly elevated, but below the 1.81 twenty-day average. A negative z-score of -0.72 means options traders are actually less defensively positioned than they were through most of June, when the PCR was consistently above 1.9 and briefly hit 2.7 on the 52-week scale. The interpretation is not that bears have retreated — the short interest data argues they have not — but that some of the options hedging demand from June has started to roll off.
The institutional flow picture adds another dimension. The most notable recent additions include Bank of America building to 8.2% of shares, Tennessee's state treasury entering with a 5.2% stake, and UBS Asset Management adding 5.2 million shares — all as of the March 31 filing. Rafferty Asset Management, known for leveraged and inverse products, added 3.3 million shares through late May. Those flows predate the current wave of short selling, but their presence in the holder list alongside a rapidly tightening borrow pool sets up an interesting structural tension between institutional long holders and the growing short base.
The single-day 12% price drop is the most striking data point in the snapshot. The ETF's earnings reaction history offers a partial analogue: a May 2026 event produced an 11.2% one-day gain; the current move is the mirror image of that in magnitude. Whether Tuesday's move reflects a macro shock, a Korean market-specific event, or a short-driven cascade is the key question for participants — and how availability behaves over the next few sessions, given how close it already is to the 52-week floor, will tell much of that story.
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