The head of South Korea's Financial Supervisory Service publicly admitted that introducing individual stock leveraged ETFs was a policy failure, even saying "we should have stopped it back then." This statement from the highest regulatory authority is more warning-worthy than any candlestick signal.

Today, South Korea's KOSPI plummeted 9.99%, triggering two circuit breakers. SK Hynix and Samsung Electronics fell over 12%. The trigger was the leveraged ETFs tracking these two stocks — less than a month after listing, their market capitalization surged from 4.5 trillion won to 9.6 trillion won, with an average daily turnover rate of 122.5%. Retail funds flooded in wildly, brokerages earned 10 trillion won in fees, but investors did not profit.
The crypto market cannot remain unaffected. South Korean retail investors are among the most active crypto trading groups globally. A plunge in KOSPI can trigger margin calls, forcing investors to sell liquid assets like BTC and ETH to cover margin requirements. Today, Bitcoin dropped below $62,000, and ETH fell below $1,700, partly due to this cross-market liquidity squeeze.
Looking deeper, the lessons from South Korea's leveraged ETFs also apply to the crypto market: high leverage, high turnover, retail-led product structures, which are prone to crashes when liquidity tightens. With MiCA about to take effect and Korean regulators reflecting, crypto derivatives designers should realize that leverage is not a demand but a risk amplifier.
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