KORU, the Direxion 3X leveraged South Korea bull ETF, is caught between a collapsing short base and a stock that just fell 36% in a single session — a combination that makes the options market's latest move the most interesting data point of the week.
The clearest shift is in options positioning, and it points toward growing bullish conviction. The put/call ratio dropped to 1.42 on June 23, more than two standard deviations below its 20-day average of 1.99. That is the most call-heavy reading relative to recent norms in over a year — a sharp departure from a market that has run a heavily put-dominated book on this ETF for most of 2026. The swing is notable precisely because it coincided with a brutal one-day price drop of 35.7%, taking KORU to $700. Options traders appear to be fading the move rather than pressing the downside.
The short unwind story, reported here earlier this week, remains intact and has deepened further. SI now stands at 11.7% of float — still elevated in absolute terms, but down 56.6% in shares from just one week ago. Positions peaked near 492,000 shares in mid-June and have now more than halved to around 167,000. The ORTEX short score has tracked that retreat, falling from 69.3 on June 10 to 55.3 today, a move that signals the bearish consensus on this name has materially weakened. Borrowing costs have risen, now running at 6.5% — up 84% on the week — a reminder that while the short base is shrinking, those who remain short are paying more to stay in their positions.
The borrow availability picture reinforces the shift toward a less adversarial lending environment. Availability has swung from near-zero in early June — as tight as 15% on June 9, meaning fewer than one share was available for every six already on loan — to a comfortable 256% today. That normalization removes the mechanical squeeze pressure that characterised the mid-June period. With availability this loose, new shorts can enter cheaply in terms of access, even as the cost to borrow continues climbing. The divergence between rising CTB and rising availability is unusual and worth watching: it may reflect broker-level pricing adjustments rather than genuine supply scarcity.
Overall, the data tells a transitional story. Bears have largely retreated, the borrow market has normalized, and options traders have swung to their most call-skewed posture in recent memory — all against the backdrop of a sharp price decline that the leveraged ETF structure alone does not fully explain. Whether that one-day drop reflects an underlying move in Korean equities, an end-of-day NAV rebalancing anomaly, or something structural in the ETF mechanics is the question the next few sessions will need to answer.
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