Mirae Asset 2x Leveraged SK Hynix ETF Surges Over Tenfold YTD, AUM Skyrockets 21.7x
Miles Bennett
The CSOP 2× Long SK Hynix ETF has returned 1,061.92% year-to-date, its AUM swelling from $636 million to $14.42 billion — but behind the retail-driven leverage frenzy, extreme dislocations and structural risks are surfacing fast.
An ETF up tenfold in six months — what's driving it?
As of June 22, the CSOP 2× Long SK Hynix ETF has gained 1,061.92% year-to-date, adding 16.55% in a single session.
The fundamental anchor is SK Hynix itself: the company shipped 12-layer HBM4E samples to key clients, hitting 16 Gbps pin speed and 20%+ energy-efficiency gains over the prior generation. On June 22 its market cap briefly topped Samsung Electronics — a first.
This means → memory chips have re-rated from "cyclical stock" to "AI infrastructure stock," and leveraged capital is the market's way of expressing that conviction.
Noam fund manager Zhou Jingxiang sees SSD demand driven by AI inference compute as the core catalyst, with sector momentum potentially lasting all year.
AUM up 21.7× — who's buying?
The ETF's assets swelled from $636 million at year-end to $14.42 billion by June 18 — a 21.7× increase.
The CSOP 2× Long Samsung Electronics ETF hit $4.4 billion in AUM over the same period, surging 215.96% in May alone and another 50%+ in June.
In plain terms = almost all of this is retail money. A senior foreign fund manager told Shanghai Securities News: "The vast majority of institutions will not hold leveraged ETFs — only a handful of hedge funds use them as short-term tactical tools." Pension and long-duration capital is fundamentally mismatched with high-leverage, high-volatility products.
Retail one-way bets — what's wrong with the market structure?
Concentrated retail long positioning has created a positive-feedback loop — a self-reinforcing cycle that pushes prices higher on the way up and triggers cascading stop-losses on the way down.
This reflects a structural shift: leveraged-ETF trading volume in Korea now rivals that of the underlying chip blue chips themselves, materially raising market fragility.
In plain terms = the leveraged tail is almost as big as the stock it tracks — when the direction reverses, stampede risk is extreme.
What extreme dislocations have already occurred?
Korea's Financial Supervisory Service reported that from May 27 to June 12, Samsung Electronics stock fell as much as 18.0% while its 2× leveraged ETF dropped 35.9%; SK Hynix stock fell 19.1%, and its 2× ETF fell 38%.
A more extreme case: on June 8, SK Hynix stock fell nearly 8%, yet a 2× leveraged ETF tracking it surged nearly 50%. The next day, the stock jumped over 13% — and the ETF plunged 40%.
This means → prices had completely decoupled from the underlying. Manager Korea Investment Management explained: market-makers have no mandatory quoting obligation during the closing auction, so a flood of market-buy orders drove the fund price to a massive premium. When liquidity returned the next morning, the price snapped back violently — punishing anyone who bought at the top.
What other risks are hiding inside leveraged ETFs?
Time decay: these products reset leverage daily. In a volatile environment, compounding steadily erodes NAV — in plain terms = even if the underlying stock returns to its previous high, the fund's NAV may suffer permanent loss.
Liquidity spiral: if a ballooning fund faces concentrated redemptions, selling pressure transmits to the underlying assets, amplifying the decline.
High valuations × high leverage: Value Partners portfolio director Sheng Jin noted that the semiconductor supply chain is long and deeply globalized — any single variable, from an earnings miss to a policy shift, could break the prevailing valuation logic and trigger sharp swings. Leverage amplifies the shock in lockstep.
Can this rally last — what's the key variable?
Semiconductor-sector valuations currently sit at historic highs.
This means → whether the rally endures depends on whether the flood of retail capital can absorb this structural risk — that is the single most important variable for this cycle.
Korea's per-stock daily price limit is ±30%, which means a 2× leveraged product faces a theoretical single-day maximum loss of 60% — a scenario regulators have explicitly flagged.
Content is for reference only, not financial advice.