OKX Ventures and KIS Buy 20% Stakes in South Korea’s Coinone Exchange

Coinone has landed two major backers in a deal that underscores how aggressively South Korea’s crypto market is being absorbed into traditional finance. OKX Ventures and Korea Investment & Securities (KIS) each agreed to buy roughly a 20% stake in the exchange, a move that signals more than simple curiosity — it’s a strategic play for control, infrastructure, and future market share.

• OKX Ventures and KIS each bought about 20% of Coinone
• The reported deal value was about $53 million per buyer
• KIS says the move opens the door to tokenized securities, stablecoins, and blockchain-based financial services
• The deal comes as South Korean firms race to secure crypto exposure under tighter regulation

The transaction was done through a mix of newly issued shares and shares sold by existing holders. In plain English, Coinone raised fresh capital while also letting some current owners cash out part of their position. After the deal, CEO Cha Myung-hoon remains Coinone’s largest shareholder at 30.36%, followed by Com2uS Holdings at 24.54%. KIS and OKX Ventures now sit as joint third-largest shareholders — not enough for outright control, but more than enough to have real influence over strategy, partnerships, and the exchange’s future direction.

That matters because a 20% stake is no joke. It is not full control, but it is far from passive. In a business where access to licenses, banking relationships, compliance, liquidity, and regulator trust can make or break survival, this kind of ownership buys serious leverage.

Why KIS is making the move

For KIS, this is being framed as more than a financial investment. CEO Kim Sung-hwan called it:

“This marks the first step in expanding beyond traditional finance into blockchain-based digital financial services.”

He also said KIS wants to position itself as a leading player in emerging areas, including:

• tokenized securities
• stablecoins
• blockchain-based financial services

That’s the real story: South Korea’s traditional finance firms are not just peeking over the fence anymore. They’re buying the gate.

For readers who may not live and breathe finance jargon, tokenized securities are traditional assets — such as stocks, bonds, or funds — represented on a blockchain. That can potentially make them easier to trade, settle, and split into smaller pieces. Stablecoins are crypto assets designed to track a stable value, usually pegged to a fiat currency like the U.S. dollar. And blockchain-based financial services is the broader category covering digital custody, trading rails, settlement systems, asset issuance, and other services built on blockchain infrastructure.

In other words: the financial plumbing is changing, and the firms that own the pipes want in before the system gets rewritten without them.

What Coinone gets out of it

Coinone said the partnership is meant to improve access to international market knowledge and strengthen investor protection, security, and risk management. That is the polished corporate version of “we want smarter partners and fewer ways to screw this up.”

It also fits Coinone’s position in a market where exchange trust is everything. South Korea is one of the world’s most active crypto markets, but it is also one of the most tightly watched. That makes security, compliance, and regulatory relationships more than buzzwords — they are survival tools.

OKX Global Markets VP Netero Dai described the investment as a vote of confidence in building finance on infrastructure that is:

“compliant, well-regulated” infrastructure.

That phrase neatly captures the new mood in crypto. The industry once marketed itself as a rebellion against gatekeepers. Now some of the biggest capital flows are coming from firms that understand the gatekeepers are still in the building, still holding the keys, and still very much capable of killing your business if you get too cute.

South Korea’s crypto land grab is accelerating

Coinone is not an isolated case. It is part of a broader rush by South Korean brokerage firms, banks, and financial conglomerates to secure a foothold in digital assets before the market matures further and the rules harden.

The pattern is obvious: if crypto exchanges, tokenized assets, and stablecoins are going to become part of mainstream finance, then major firms want their names on the infrastructure now — not after the market has already settled into a new hierarchy.

Other examples from the same trend line include:

• Mirae Asset Consulting buying 92% of Korbit for about $88.7 million
• Hanwha Investment & Securities raising its stake in Dunamu from 5.94% to 9.84%
• Hana Financial Group agreeing to buy 6.55% of Dunamu for about $670 million
• Samsung affiliates acquiring a combined 4% of Dunamu for $408 million

That is not random market noise. That is a coordinated institutional march into the digital asset sector.

And if South Korea feels ahead of the curve here, that’s because it is. The country already has a deep retail crypto culture, but now the bigger shift is happening at the institutional level. The suits are not just watching anymore — they are buying ownership stakes, forming alliances, and positioning themselves for the next phase of blockchain finance.

What regulators are trying to do

The regulatory backdrop is just as important as the capital flows. South Korea’s Financial Services Commission (FSC), the country’s top financial regulator, has proposed capping major shareholders’ stakes in crypto exchanges at around 15% to 20%.

That matters because regulators want institutional money, but not a full takeover by any one player. In other words: yes to participation, no to cowboy nonsense.

Coinone said it will continue working with regulators on the procedures related to the shareholder changes, which is a reminder that deals like this are not finished the moment the paperwork gets signed. In South Korea, the compliance layer is part of the business model, not an afterthought.

There is a real tension here. On one side, more institutional ownership can mean stronger governance, better security, deeper capital reserves, and more legitimacy for mainstream users. On the other, it can also concentrate power, reduce competitive pressure, and pull crypto closer to the same centralized financial structures it was meant to escape.

That’s the trade-off. Better rules often mean better trust, but they also mean less of the anarchic freedom that early crypto culture sold as a feature, not a bug.

Why this deal matters beyond Coinone

Coinone is one of South Korea’s major exchanges, but the implications reach well beyond a single platform. This is about who gets to own the rails for the next generation of finance.

For KIS, the stake in Coinone is a bridge from traditional brokerage into digital asset services. For OKX, it is a foothold in one of Asia’s most important markets, wrapped in a compliance-first story that makes regulators and institutions more comfortable. For Coinone, it brings capital, expertise, and strategic backing in a brutally competitive sector.

For the broader crypto market, it is another sign that adoption is not arriving in some clean, ideological form. It is arriving through brokerages, banks, exchanges, regulators, and corporate partnerships — messy, cautious, and heavily supervised.

That may disappoint the decentralization purists, but it also reflects reality. Bitcoin does not need this kind of ownership shuffle to justify itself. BTC remains the hardest money narrative in the room. But the broader crypto stack — especially stablecoins, tokenized assets, and blockchain-based financial services — is increasingly being built through institutional channels whether anyone likes it or not.

The upside is obvious: more capital, better compliance, stronger infrastructure, and a pathway for blockchain rails to reach mainstream finance. The downside is equally obvious: more centralization, more regulatory capture risk, and a steady erosion of the open, permissionless ethos that gave crypto its original edge.

Both sides are true. Welcome to adult supervision.

Key questions and takeaways

What happened?

OKX Ventures and Korea Investment & Securities each agreed to buy about a 20% stake in Coinone.

Why does it matter?

It shows that major traditional finance and crypto players are racing to secure a position in South Korea’s digital asset market.

What is Coinone gaining from the deal?

Coinone gets capital, international market knowledge, and support for investor protection, security, and risk management.

What is KIS trying to do?

KIS wants to move beyond traditional finance and expand into tokenized securities, stablecoins, and blockchain-based financial services.

What role does the FSC play?

The Financial Services Commission is South Korea’s top regulator, and it has proposed ownership caps of roughly 15% to 20% for major shareholders in crypto exchanges.

Is this about more than just buying an exchange?

Yes. It is also about securing infrastructure, shaping regulatory positioning, and gaining early access to the next phase of digital asset finance.

Does this signal mainstream adoption?

Yes, but through regulated institutions rather than the wild, permissionless version crypto idealists once imagined.

What bigger trend does this reflect?

A broader institutional takeover of South Korea’s crypto sector, with banks, brokerages, and global crypto firms all trying to own part of the market before the rules fully settle.

South Korea is becoming a case study in how crypto gets absorbed into the financial system: not all at once, not without resistance, and definitely not without a few powerful players trying to stake their claim. The money is moving in, the regulators are drawing lines, and the exchanges are figuring out who gets to build the future on top of the rails.