KORU Unwinds a Holiday Markup as Seoul's Chip Rally Reverses

The Move Was Not 3x Anything

KORU is built to return 300% of the daily move in the MSCI Korea 25/50 Index. The KOSPI closed Tuesday at 6,870, down 1.55%, snapping a five-day rally. Three times that is roughly -4.65%. KORU closed at $17.84, down 24.21% — about fifteen times the index move, not three.

The difference is Monday. Seoul was closed August 16-17 for the substitute Liberation Day holiday, but KORU trades on NYSE Arca and it did not sit still: the fund gained 8.98% to $23.54 on 25.19 million shares on nothing but the expectation that Korea would gap higher when it reopened. That is a fair-value markup against a stale index, not a realized 3x return.

Korea then delivered exactly the gap the fund had priced — KOSPI up 2.21% at 7,132.20 by 9:12 a.m. — and spent the rest of the session handing it back. So KORU paid twice: once to unwind the holiday markup, once for 3x the actual day. The five-session run from the August 10 close of $16.41 to Monday's $23.54 was +43.4%. At $17.25 on Hyperliquid, almost all of it is gone.

This is the failure mode nobody prices when they buy a leveraged single-country fund into a closed market. The label says 3x daily. It does not say what happens when "daily" spans a foreign holiday.

Seoul Opened Up 2%, Closed Down 1.5%

The open was genuinely strong. SK hynix jumped 6.26% to 1.748 million won and Samsung Electronics rose 3.28% to 283,000 won, with foreign investors net buying 430.1 billion won while retail sold a net 364.1 billion won. By the close the tape had inverted: Samsung -2.00%, LG Energy Solution -5.01%, Hyundai Motor -4.42%.

New York then made it worse. The Wall Street Journal reported that nine large tech companies carry roughly $3 trillion in off-balance-sheet AI commitments — about triple what they owe on disclosed leases and borrowings, against some $600 billion of trailing capex. Memory took the hit: SanDisk fell 9.1%, Micron 7.3%, Western Digital 5.3%, with the 30-year Treasury yield at 19-year highs. The Nasdaq Composite closed down 1.2% and the S&P 500 down 0.6% for a third straight loss.

That matters more for KORU than for almost any other country fund, because the MSCI Korea 25/50 Index is functionally a memory-semiconductor basket with a financials and autos tail. When Micron and SanDisk crack in the US afternoon, Seoul opens into it the next morning. There was a smaller headwind too: Brent climbed 2.7% to $90.87 after US-Iran talks lapsed without a deal, which is a straight cost hit for an import-dependent economy.

The Rally Was Already Standing on Thin Ice

Context on what was being bought back. The KOSPI hit an all-time high of 9,385.59 on June 19, then collapsed roughly a third into early August as the AI memory trade unwound — Samsung -38% and SK hynix -50% over a single month, even with SK hynix printing record quarterly results at a 76% operating margin. It bottomed near 5,593 and rallied back to 6,978 by August 14. Tuesday's high of about 7,150 was a 28% bounce off the low in roughly two weeks.

The leverage that drove the crash has not been cleared. Korean retail held 34.37 trillion won in margin loans, and on August 5 the finance ministry imposed caps on leveraged ETF access, tripling the minimum cash balance to 30 million won. Forced deleveraging into a bounce is exactly the setup that produces a 2% open and a 1.55% close.

Two dated catalysts sit ahead. The Bank of Korea hiked to 2.75% in July and its board is split on going again at the August 27 meeting, with core inflation at a 31-month high of 2.6%. And Seoul is still negotiating implementation of the $200 billion US investment package that cut its tariff rate to 15%, with Washington pressing for project announcements and the late-August target slipping. Neither is priced into a fund that moves 24% in an afternoon.

Where the Perp Is Marking Korea

The Hyperliquid HIP-3 market is at $17.25, about 3.3% below the ETF's 4 p.m. close of $17.84 and below the $17.64 after-hours print, on $32.26 million of 24-hour volume. That discount is the trade's whole information content right now: with Seoul reopening Wednesday into a memory tape that just lost SanDisk 9% and Micron 7%, the perp is marking Korea lower before the cash market gets a chance to.

It also explains why the perp shows -27.35% over 23 hours while the ETF printed -24.21%. The perp was live through the Seoul session and topped when the KOSPI topped near 7,150; the ETF's day only starts at the New York open. The measurement windows are different instruments' clocks, and the perp's is the one that captures the gap.

Worth keeping in view: the underlying fund carries a 1.32% expense ratio on about $1.6 billion of assets, with a 52-week range of $3.76 to $63.99 — a range that tells you everything about the decay profile. Layering perp leverage of up to 10x on a product that already resets 3x exposure every day compounds a compounding problem, and the biggest single risk is not the level. It is the overnight gap between Seoul's close and New York's open, which is precisely where this move came from.