Bithumb's IPO Delay: Flow of Cash vs. Flow of Risk

Bithumb's financial flow showed robust health in 2025, with revenue reaching 651.3 billion won and operating profit surging 22.3%. The company reported a second consecutive year of surplus, a clear signal of operational scaling in a favorable market. Yet this strong top-line performance was abruptly overshadowed by a catastrophic internal control failure last week.

The exchange's systems failed spectacularly, leading to an erroneous transfer of more than $40 billion in assets. During a promotional event, Bithumb accidentally distributed approximately 620,000 bitcoins instead of 620,000 won, a flaw that exposed a critical lag in transaction processing and balance updates. This incident triggered a 17% price drop in bitcoin and forced the company to retrieve most of the funds, but not before 1,786 bitcoins were sold.

The strategic retreat is now clear. In response, Bithumb has signed an IPO advisory contract with Samjong KPMG through 2027 to strengthen internal controls. The company has formally delayed its public listing to after 2028, prioritizing a rebuild of its operational and financial governance before seeking the public markets.

The Market Flow: Rebounding Volume, But a Fading Retail Pool

Bithumb's aggressive marketing is paying off in market share, with its trading volume share rebounding to 25% of South Korea's total. This marks a significant comeback from single-digit levels in 2023, as the exchange captures volume from its chief rival, Upbit, which has seen its dominance erode. The company is banking on this regained position to support its revenue engine as it prepares for a public listing.

Yet this share gain is happening against a stark headwind: the overall domestic market is shrinking. A retail exodus is underway, with won-denominated trading volume declining sharply in late 2025. The data shows a steady drop in average daily volumes and deposits, as investors migrate capital to the Korean stock market and overseas exchanges in search of stability and better returns.

The tension here is clear. Bithumb is gaining share in a contracting pool, relying on its promotional push to capture volume from a less liquid and smaller market. This setup pressures the exchange's ability to scale its revenue sustainably, as its growth is now tied to a dwindling base of local retail participation.

The Catalyst Flow: What to Watch for the IPO Thesis

The immediate catalyst is the resolution of the $40 billion+ internal control failure. The exchange must demonstrate it has fixed the systemic flaws that allowed the 24-hour lag and failed verification checks. Any resulting regulatory fines or extended suspensions would directly threaten its ability to meet the new, post-2028 listing timeline. The market will watch for concrete, auditable improvements in its internal controls.

The key market metric is the sustainability of its 25% market share. This gain is impressive, but it occurs against a backdrop of a shrinking domestic market due to a retail exodus. If Bithumb cannot grow its share faster than the overall market declines, its revenue engine will struggle. The IPO thesis depends on proving it can scale profitably in a smaller, less liquid pool.

The competitive catalyst is Upbit's planned IPO. Its proposed merger with Naver Financial is expected in September, a timeline that could pressure Bithumb to accelerate its own preparations. If Upbit's listing succeeds, it will set a precedent and likely increase scrutiny on Bithumb's delayed plans. The exchange's ability to maintain its comeback momentum while preparing for a public debut will be tested.