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Korea Investment & Securities (KIS) and OKX Ventures have each agreed to acquire a 19.6% stake in Seoul-based exchange Coinone, paying roughly KRW 80 billion (approximately $53 million) apiece for a combined total of around $106 million. The deal was first reported on May 29, 2026, and was presented publicly at a joint press conference in Seoul on June 4.

The transaction requires approval from South Korea's Financial Services Commission (FSC) before it can close. KIS is the brokerage arm of Korea Investment Holdings, one of the country's major financial conglomerates.

The investment is structured as a mix of secondary share purchases from existing shareholders and subscriptions for newly issued stock. After the transaction completes, Coinone founder and CEO Cha Myung-hun will remain the largest single shareholder at 27.8%, followed by game developer Com2uS Holdings and its affiliates at 25.0%. KIS and OKX Ventures will each hold 19.6%, becoming joint third-largest shareholders.

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Why Coinone, and Why Now

KIS CEO Kim Sung-hwan said at the press conference that the firm was deliberately positioning itself at the junction of traditional brokerage services and digital assets. "We made the investment to help connect institutional finance and the virtual-asset, or cryptocurrency, market," he said. He added that companies unwilling to move ahead of the digitization of financial assets "risk falling behind as the market changes."

KIS designated itself a "strategic investor" in the deal rather than a "financial investor," a distinction that carries significant weight in Korean corporate and regulatory culture: it signals active operational collaboration and shared business development rather than passive return-seeking, and carries both reputational and legal implications for how the relationship is structured.

Notably, KIS passed over South Korea's dominant exchanges: Upbit holds roughly 71.6% of domestic crypto trading volume and Bithumb holds around 25%. Kim cited Coinone's record of no major breaches since launch, the technical background of its founder, and the combined expertise of its new shareholder group as factors that made a smaller platform more attractive than scale alone. Coinone was founded in 2014 by Cha Myung-hun, a POSTECH-trained computer scientist and white-hat security researcher, a background Kim specifically highlighted as part of the investment rationale.

Coinone has operated since 2015 and now lists more than 200 digital assets. It is, by most measures, a distant fourth in the Korean market, with trading volume share sitting at roughly 1.8% as of October 2025 after a brief spike to about 20% during a zero-fee promotion in March 2025. KIS and Coinone have both signalled that the new capital and the credibility of incoming shareholders are intended to support a different kind of growth: regulated digital securities and stablecoin infrastructure, rather than competing directly on spot trading volume.

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OKX's Strategic Calculus

For OKX, the rationale is harder to separate from regulatory context. South Korean authorities had the OKX app removed from Korean app stores in January 2026, alongside Binance and Bybit, after those platforms failed to register with the country's Financial Intelligence Unit (FIU). Rather than fight that ruling directly, OKX Ventures is acquiring a meaningful equity position in a fully licensed domestic exchange. OKX Vice President of Global Markets Netero Dai framed the investment in broader terms, stating that "the future of finance will be built on compliant, well-regulated infrastructure," but the structural logic is straightforward: a 19.6% stake in a licensed Korean entity is a functional path back into one of Asia's most active crypto markets. OKX, which serves approximately 120 million users globally, stands to regain meaningful access to a market where South Korea recorded KRW 318.3 trillion in crypto trading volume in the first quarter of 2026 alone, even as that figure represented a 20% decline from the prior quarter.

This approach mirrors a pattern seen elsewhere, including in India and across parts of Africa, where international exchanges have pursued domestic partnership models rather than seeking direct regulatory approval.

For builders and projects navigating those same markets, the Coinone deal illustrates what that playbook looks like when executed at the equity level.

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Compliance Overhang

The timing of the deal carries an awkward detail. In April 2026, South Korea's FIU fined Coinone KRW 5.2 billion (roughly $3.5 million) and imposed a three-month partial business suspension after the exchange failed to properly verify around 70,000 customer accounts. That followed a 2023 scandal in which Coinone's former listing director admitted to accepting approximately KRW 2 billion (approximately $1.5 million) in bribes to list specific tokens, including Furiever Coin.

KIS has indicated that one concrete contribution it plans to make as a strategic shareholder is sharing its own anti-money laundering monitoring systems and compliance expertise with the exchange.

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Regulatory Runway

The investment arrives as South Korea enacts sweeping changes to its digital asset framework. In January 2026, the National Assembly passed amendments to the Capital Markets Act and Electronic Securities Act that formally recognize distributed ledger technology and open the door for a tokenized securities (STO) market, targeting a launch as early as January 2027.

Also in early 2026, South Korea lifted its ban on corporate crypto holdings, allowing listed companies and professional investors to allocate up to 5% of their annual equity capital into digital assets. That policy shift directly broadens the addressable market for institutions like KIS and makes investment in regulated digital asset infrastructure a commercially viable priority for domestic brokerages.

A broader Digital Asset Basic Act covering stablecoins and cross-border exchanges remains stalled in part over a dispute between the Bank of Korea and the FSC about who holds authority over won-pegged stablecoin issuance.

Coinone CEO Cha Myung-hun has stated that the exchange intends to "[position] the exchange in the new arena of blockchain-based digital financial infrastructure."

With a strengthened balance sheet and shareholders spanning domestic brokerage, global exchange, and gaming sectors, Coinone is positioning itself as a candidate for FSC licensing as an OTC trading platform. The FSC is expected to open that licensing window around mid-2026.

Token project teams seeking Korean exchange listings and developers building compliant tokenization tools for Korean markets should watch that timeline closely.