South Korea’s benchmark KOSPI index plunged nearly 10% on June 23, triggering a rare circuit breaker and a 20-minute trading halt, as a perfect storm of a regulatory blunder, concentrated stock holdings, and global risk-off sentiment shook markets. The crash marked the steepest decline since March 2020, and its shockwaves rippled into the cryptocurrency space, sending Bitcoin below $63,000 and sparking a cascade of leveraged position liquidations.
The KOSPI closed down 9.99% at 8,203.84 after earlier breaching an 8% decline that activated the first-level sidecar mechanism. The sell-off was led by semiconductor giants Samsung Electronics and SK Hynix, which together account for more than half of the index’s market value. Both stocks lost over 12% as foreign investors retreated en masse. The trigger was not only external headwinds—disappointing Chinese export data, renewed U.S. interest rate fears, and weakness in U.S. tech shares—but also a stunning admission from South Korea’s top financial regulator.
On June 22, Financial Supervisory Service Governor Lee Chan-jin acknowledged that authorities had “acted too quickly” when approving leveraged exchange-traded funds tied to Samsung and SK Hynix in late May. The sixteen products, initially launched with about $3 billion in assets, had ballooned to over $9 billion, with retail investors holding 92% of the shares. Lee expressed regret for not blocking the introductions, noting they failed to stabilize the won as intended. The admission shattered confidence, especially because the ETFs’ daily rebalancing needs were estimated by Goldman Sachs to generate up to $4.7 billion in dealer flows from a mere 5% market swing—exacerbating the downturn.
Bitcoin fell in lockstep with the equity rout, dropping as much as $1,500 to trade near $62,300 after an intraday low around $62,000. The crypto market had already been under pressure from record outflows from U.S. spot Bitcoin ETFs, which saw a rolling 30-day net withdrawal of $6.35 billion. As Bitcoin slid, leveraged long positions began to collapse. CoinGlass data showed roughly $190 million in crypto liquidations within one hour, with longs accounting for $184 million. Over 24 hours, total liquidations reached $714 million—Bitcoin traders lost $215 million and Ethereum positions $177 million. The forced closures amplified the sell-off, underscoring how fragility in traditional markets can quickly spill over into highly leveraged digital assets.
