How a 30m-won cash barrier reorders flows: the upside pipe, the downside amplifier, and the balloon across the Pacific
The July 16 curb is not the cause of the deleveraging but the variable that sets its sequence: it removes the mechanical buyer (creation pipe) first while rebalancing sell-flows persist until net assets shrink. The remaining forced-seller cohort is retail leverage, not institutions.
The joint regulatory plan (30m-won cash deposit, effective August) landed on a day KOSPI fell 6.37% to twenty points above Goldman's 6,800 support, while the US momentum factor was in its steepest three-week drawdown since the early 1970s.
Narrower KOSPI intraday ranges in H2 are the benefit; the cost is lost upside beta in Samsung Electronics and SK Hynix. Demand migrates to index leverage and US options, which the rule exempts. The newly listed SK Hynix ADR leveraged ETFs face the irony of losing their largest buyer base from August.
SK Hynix earnings on July 22 (first capex-crack test) · direction of retail flows around early-August implementation · speed of AUM convergence toward 4–5tn won · KOSPI 6,800 · Micron's $854–800 put references
The real question the market is asking is simple: did the July 16 regulation cause the deleveraging? No. The deleveraging was already underway. Net assets of Korea's 16 single-stock leveraged products had already shrunk 40% from their peak before the announcement, and in the US the momentum long- was living through its steepest three-week drawdown since the early 1970s. What the regulation changes is not the direction but the sequence: it removes the mechanical buyer of up-markets first, and leaves the mechanical seller of down-markets in place.
KOSPI answered on announcement day with a 6.37% plunge to 6,820.60 — twenty points above the 6,800 support Goldman Sachs flagged. This report dissects, in order, the regulation itself, the domestic leveraged market that became KOSPI's amplifier in two months, the Korean money moving through US-listed leveraged products, and the momentum-factor unwind that ties it all together. The regulation is not the cause of the deleveraging — it is the variable that shapes the form it takes.
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