South Korea crypto market cools as Kimchi Premium turns negative
South Korea’s crypto market, long known for frenzied retail trading and the Kimchi premium, is losing some of its speculative heat as local demand weakens and regulators tighten their grip on the sector.
The shift is showing up in the Kimchi premium, the price gap that once saw crypto assets trade higher on Korean exchanges than overseas. That premium has now turned negative, meaning digital assets are cheaper on Korean platforms than on global exchanges. Retail sentiment has soured alongside it: a weekly CoinNess and Kratos survey found that 58.8% of respondents expect Bitcoin to fall or crash in the coming week, up from 28.6% a week earlier. Only 17.7% expect a price surge, down from 36%, while 23.5% expect sideways trading.
Weak market, thin liquidity
Investors blamed the persistent negative premium on several factors. The largest specific cause, cited by 25.4% of respondents, was broader market weakness and liquidity outflows. Another 22.7% said a strong stock market has reduced the appeal of crypto, while 16.5% pointed to limitations of local crypto exchanges. The remaining 35.4% said all of these factors are working together.
South Korean exchanges are also becoming late-stage listing venues rather than early platforms. According to IOSG Ventures, Coinbase, Binance Futures, and Bybit often lead early price discovery, while Upbit and Bithumb tend to wait for broader market validation before adding new assets. IOSG found that 85% of Bithumb’s listings came after comparable listings on major global platforms, while Upbit listed assets an average of 28 days after their first overseas debut. The lag reflects lengthy regulatory reviews and a preference for more established projects.
Regulation is shifting as well. According to SBS News, the Financial Intelligence Unit (FIU) under the Financial Services Commission (FSC) has decided against a proposed blanket reporting rule for crypto transfers above 10 million won, or about $6,500, to foreign virtual asset service providers (VASPs) or personal wallets. Instead, local VASPs must operate their own internal, risk-based anti-money laundering (AML) controls.
Police probe Polymarket users
Law enforcement is also targeting decentralized prediction markets. Local law firm Jonjung reported on a blog post that the Gangwon Provincial Police Agency has launched an investigation into South Korean Polymarket users over possible violations of the country’s gambling laws. Ahn Chang-bo, managing partner at the law office, said police are tracking crypto transaction records to identify and summon users. However, he noted that whether participation in Polymarket violates South Korea’s gambling laws remains unsettled, as prosecutors have not taken a definitive position and courts have yet to rule on the issue.
South Korea remains a major crypto market, but the tone has changed. Local demand has weakened, exchanges are slower to list new tokens, and authorities are taking a closer look at both compliance and emerging platforms such as Polymarket.
