Goldman's pre-warning. As early as May 28, Goldman Sachs' sales desk warned that Korea's leveraged chip ETFs could "deepen concentration in the equity market and amplify volatility" . The Bank of Korea had also flagged that retail leveraged equity investment topped a record 60 trillion won ($39 billion) by end of May
. South Korea's top financial regulator later publicly expressed regret over approving the batch of single-stock leveraged ETFs
.
The mechanism. Strategy Inc. (formerly MicroStrategy) uses the STRC perpetual preferred stock — scaled to $3.4 billion per an SEC filing — as a dedicated capital channel to fund Bitcoin purchases. The instrument carries an ~11.5% dividend yield and needs to trade near its $100 par value for Strategy to issue new shares and buy more BTC
.
The fracture. By early June 2026, STRC had fallen below $95, de-anchoring from its $100 par . On June 25, it hit an all-time intraday low of $80.84 — a 20% discount to par — forcing Strategy to halt new STRC issuances and effectively "severing the capital channel purpose-built to fund its ongoing Bitcoin accumulation program"
. This triggered the firm's first disclosed Bitcoin sale since December 2022
. Analyst Josh Neuner warned that the window STRC spent near its $100 peg had shrunk to just 4 days in May, calling the funding loop something that "gives me the shivers"
.
Common stock fallback. Despite earlier pledges to pivot to perpetual preferred shares, Strategy continued leaning on common stock (MSTR) for Bitcoin purchases — buying 520 BTC between June 15–22 — a pattern Bloomberg noted was a retreat from the STRC-first strategy . CryptoQuant subsequently urged Strategy to halt Bitcoin buys and bolster cash reserves
.
The simultaneous stress in these two seemingly unrelated markets reveals three systemic risks:
Leverage magnification in both directions. Leveraged ETFs and high-yield preferred stock structures amplify gains during rallies but force mechanical, non-fundamental selling in downturns. The Korean chip ETFs' daily rebalancing alone triggered $6 billion in forced liquidations . Goldman's desk had flagged this as a "volatility accelerator" before the crash
.
Retail concentration as a systemic channel. In Korea, ~92% of single-stock leveraged ETF assets were retail money , while in the U.S., Korean retail traders were themselves the largest marginal buyers of SOXL
. When both sides of the trade lever up on the same AI-chip thesis, a local shock in Seoul directly cascades into U.S. semiconductor names.
Cross-asset fragility. Strategy's STRC funding loop was designed as a "deliberate and durable" structure (per Benchmark analyst defense ), but a 20% discount to par in a risk-off environment showed how quickly a Bitcoin-focused yield vehicle can lose its capital-raising function when broader tech sentiment sours. The same day the Korean chip rout peaked, STRC hit its record low, illustrating that AI-equity leverage and crypto-structured credit can break simultaneously under the same macro shock.
Bottom line. The $270 billion rout was not caused by AI fundamentals deteriorating. It was a mechanical unwind of products that concentrate leverage, retail funding, and single-stock risk into a fragile feedback loop — one that now spans Seoul, Hong Kong, and Wall Street, and whose stress has already bled into the crypto-capital structure of the largest institutional Bitcoin holder.