Kiwoom Securities, one of South Korea's largest online brokerages with approximately $38.1 billion in assets (as of 2022), is in discussions to acquire a stake in Bithumb, the country's second-largest cryptocurrency exchange by trading volume, The Block reported on June 29. No financial terms have been confirmed, and the deal remains in reported rather than announced status. The move would mark another major step in a rapid wave of traditional Korean financial institutions buying into crypto exchange ownership, accelerating since January 2026 when South Korea lifted a nine-year ban on corporate crypto investment. That policy change caps corporate crypto investment at 5% of shareholder equity annually, and a Phase 2 extension to listed companies and professional investors remains pending a Financial Services Commission announcement, a constraint that has sharpened urgency among institutions seeking to establish positions before the rules evolve further.

A Crowded Race for Exchange Stakes

The Kiwoom report follows a string of similar deals completed or announced in recent months. Mirae Asset Consulting paid roughly 133.5 billion won (approximately $92 million) for a 92.06% stake in Korbit earlier this year. Korea Investment and Securities and OKX each took 20% stakes in Coinone. Hana Bank acquired a 6.55% stake in Dunamu, the parent of market-leading exchange Upbit, in a deal valued at around 1 trillion won. Samsung Group entities and Hanwha Investment and Securities have also added or increased Dunamu equity positions. Across the four largest domestic exchanges, a traditional financial institution now holds or is pursuing a meaningful ownership position.

The driving force is regulatory urgency as much as opportunity. South Korea's Financial Services Commission (FSC) and the ruling Democratic Party's Digital Asset Task Force have proposed a 20% cap on major shareholders at exchanges classified as critical public infrastructure, a category covering both Upbit and Bithumb. Exceptions up to 34% are permitted with FSC approval, and the proposed rules include a three-year grace period from law enactment for Upbit and Bithumb, with smaller exchanges receiving six years. For Bithumb, whose holding company currently controls approximately 73% of the exchange, that cap would require substantial restructuring and create a significant block of shares available for new investors.

A separate factor is accelerating timelines further. Securities token offering (STO) legislation has stalled in the National Assembly, leaving brokerage STO teams in a holding pattern. Firms unable to advance STO strategies are pivoting to exchange stakes as an alternative route into digital asset infrastructure. Tiger Research analyst Kim Jeong-ho put it plainly in June 2026, as reported by The Korea Times: "The current race for partnerships is less about gaining a first mover advantage and more about shaping the regulatory landscape."

Bithumb's Complicated Position

Bithumb is a recovery story carrying serious unresolved baggage. The exchange rebuilt its domestic market share from under 10% in 2023 to roughly 25% today, largely through a zero-fee trading campaign. It has signed a distribution partnership with Circle for dollar-denominated stablecoins and appointed Samsung Securities as lead manager for a long-delayed KOSDAQ listing targeting a post-2028 timeline. The exchange has also undergone a corporate spin-off separating Bithumb (exchange operations) from Bithumb A (holding and investment operations), a structural division that any prospective equity investor would need to understand when determining what entity a stake acquisition would actually involve.

In February 2026, however, a promotional system error credited users with 620,000 BTC, an amount worth approximately 60 trillion won at the time, exposing deep internal control failures. The FSC responded by mandating five-minute ledger reconciliation requirements and monthly external audits. An external audit by Samjong KPMG is ongoing through end-2027.

Governance problems extend further back. Bithumb's de facto owner Kang Jong-hyun was arrested in February 2023 on charges of stock price manipulation and embezzlement. Former chairman Lee Jung-hoon faces a separate fraud trial involving 160 billion won (approximately $115 million).

Kiwoom's Broader Digital Asset Positioning

Kiwoom is not arriving at digital assets cold. The firm has already filed trademark applications for two KRW-pegged stablecoin brands, "KiwoomKRW" and "KRWKW," making it the third South Korean securities firm after NH Investment and Securities and Shinhan Securities to pursue a domestic stablecoin product. Analysts suggest a Bithumb stake could provide distribution infrastructure to support those ambitions, though neither party has confirmed that as a motivation. The opportunity would become more concrete if Korea's Digital Asset Basic Act clears the National Assembly. The pending bill includes provisions covering stablecoin licensing, exchange registration, and a proposed 200% debt-to-equity cap for virtual asset service providers that would take effect in August 2026 upon enactment.

What This Signals for the Region

Korea accounts for an estimated 10 to 15% of global spot crypto trading volume on any given day, making its structural shifts consequential beyond its borders. Retail trading volume across Korea's five major exchanges fell approximately 48% year over year. A significant driver of that decline was a capital rotation triggered when the KOSPI crossed 5,000 for the first time in January 2026, with an estimated 90 trillion won in retail capital shifting from domestic crypto into equities and real estate. The Bitcoin "Kimchi Premium," which historically reflected excess Korean retail demand, turned negative in early 2026 with Bitcoin trading at a 1 to 2% discount to global prices. Whether institutional consolidation of exchange ownership will make Korean market flows more stable and less susceptible to the retail-driven spikes that once characterized the premium remains a forward-looking question rather than an established outcome.

For regulators across South Asia watching Korea's model, the pattern is instructive: phased corporate access rules, mandatory ownership caps, and licensed financial institutions absorbing exchange equity represent a path between outright crypto bans and unregulated growth. India, which has pursued exchange registration requirements through its Financial Intelligence Unit, may find Korea's bank-led ownership structure a useful reference point as it works through its own institutional access questions. Pakistan and Bangladesh are also tracking Korea's approach as they navigate their own decisions about institutional participation in digital asset markets.

The immediate question for Bithumb is whether a Kiwoom partnership stabilizes a governance structure that has been under legal and regulatory scrutiny for three years. Three concrete pressures frame what comes next: the proposed 200% VASP debt-to-equity requirement under the pending Digital Asset Basic Act is timed for August 2026, the three-year clock for Bithumb to restructure its ownership below the proposed 20% cap begins the moment any such law is enacted, and the exchange's IPO timeline extends past 2028 at the earliest. Until deal terms are disclosed, or until either party confirms negotiations publicly, how those timelines converge will determine the shape of Bithumb's institutional future.