Upbit (Dunamu)
Upbit is South Korea's largest crypto exchange, running on Dunamu's KRW real-name banking rails.
Upbit keeps its license-protected grip on Korean crypto trading while revenue shrinks, rivals recapture share, and regulators decide the Naver deal's fate.
Upbit lets South Koreans buy and sell cryptocurrencies. It is hard to replace because the Korean government only lets a few companies do this, and Upbit has the banking connections others lack; Binance and Coinbase cannot legally operate there. The problem is that profits are falling year over year, its market share dropped sharply then bounced back, and it now faces two serious threats: an investigation into a major 2025 security hack and a government review of its planned merger with Naver. If either investigation bans the merger or imposes heavy penalties, the company's growth plans could stall.
KFTC rules on the Naver-Dunamu merger by Dec 31, 2026. Blocking or restructuring would show regulatory risk overriding Upbit's structural moat.
FSS issues formal sanctions from its inspection over the Nov 2025 hack. Severe penalties would show trust/regulatory standing weakening, not just competitor gains.
- FY2025 revenue: 1.5578T won, down 10% YoY
- Operating profit: 869.3B won, down 26.7% YoY
- Naver deal values Dunamu at 15.13T won
- FSS sanctions process over Nov 2025 hack could escalate to license-threatening penalties.
- KFTC could block or force restructuring of the Naver-Dunamu merger before Dec 31, 2026 deadline.
- FY2025 revenue and profit already declined 10% and 27.9% YoY respectively amid crypto trading slowdown.
- Market share volatility, dipping to ~51% in April 2026 before recovering, shows edge erosion from rival listings.
- Sector-wide Korean crypto trading volume hit multi-year lows by July 2026, pressuring fee revenue.
| Rival | Direction | Evidence |
|---|---|---|
| Bithumb | contesting | Bithumb's listing blitz cut Upbit's share to ~51% in April 2026 before Upbit rebounded to 69% by May 6, 2026 |
| Korbit (Mirae Asset) | contesting | KFTC approved Mirae Asset's 92.06% Korbit acquisition July 9, 2026, first TradFi entry into Korean exchanges |
| Binance, Coinbase | contesting | Structurally barred from Korean market by real-name banking law as of 2026, no direct KRW competition |
- Is Upbit (Dunamu) profitable in 2026?
- Yes but shrinking: Dunamu's FY2025 net profit was ₩708.9 billion, down 27.9% year over year, on revenue of ₩1.5578 trillion (down 10% YoY), reported March 30, 2026. Trading commissions made up 98.3% of revenue as crypto trading volumes cooled.
- Who owns Upbit?
- Upbit is operated by Dunamu Inc., founded by Song Chi-hyung, who holds 25.51%. Naver Financial agreed on November 27, 2025 to acquire 100% of Dunamu via share swap, valuing it at ₩15.13 trillion (~$10.3B deal), pending KFTC antitrust review through December 31, 2026.
- Could AI replace Upbit's business?
- Unlikely. Upbit's moat is its VASP license and real-name KRW bank rails that foreign exchanges can't replicate; AI is used internally for fraud detection and KYC, not as a substitute for licensed custody and fiat rails, per company/deal disclosures through mid-2026.
- Was Upbit hacked?
- Yes. On November 27, 2025, Upbit suffered a ~54-minute hot-wallet hack of Solana-network assets worth about ₩44.5 billion (~$30-32M). Dunamu covered ₩38.6 billion from reserves; South Korea's FSS opened a formal sanctions process, sending an inspection letter July 18-19, 2026.
- Who is Upbit's biggest competitor in Korea?
- Bithumb is Upbit's main domestic rival; an aggressive listing blitz cut Upbit's market share to roughly 51% in April 2026 before it rebounded to 68.7% by May 6, 2026 and settled near 63% by mid-July 2026.
- Is Upbit being acquired?
- Naver Financial agreed on November 27, 2025 to acquire 100% of Dunamu (Upbit's operator) in a share-swap deal valuing Dunamu at ₩15.13 trillion (~$10.3B total). The deal awaits Korea Fair Trade Commission antitrust clearance, with a deadline extended to December 31, 2026.
- 2026-07-19FSS sends formal sanctions inspection letter to Dunamu over Nov 2025 hack
- 2026-07-09KFTC approves Mirae Asset's 92.06% acquisition of rival exchange Korbit
- 2026-06-19Samsung affiliates close 4% Dunamu stake purchase for ~$408M
- 2026-05-16Hana Bank acquires 6.55% Dunamu stake for ~$670M-$1.0B
- 2026-05-06Upbit's Korea market share rebounds to 68.7% after listing-driven dip
- 2026-04Upbit's standalone market share drops to roughly 51%
- 2026-03-30FY2025 results: revenue ₩1.5578T (-10% YoY), net profit ₩708.9B (-27.9% YoY)
- 2025-11-27Naver Financial agrees to acquire 100% of Dunamu for ~$10.3B
- 2025-11-27Upbit hot-wallet hack drains ~$30-32M in Solana-network assets
- 2017-10-24Upbit launches, partnering initially with US exchange Bittrex
- Upbit → Lead; Upbit → History
- Naver, Dunamu to invest over $6.8 billion to drive global expansion into Web3 market (2025-11-27)
- What Mirae Asset's Korbit acquisition means for Korea (2026-07-19)
- Hana Financial Group Invests 1T Won in Dunamu (2026-05-16)
- Samsung Affiliates Acquire 4% Stake in Upbit Operator Dunamu for $408 Million (2026-05-29)
- Dunamu posts 2025 revenue of KRW 1.5578 trillion (2026-03-30)
- Upbit operator Dunamu sees 10% revenue drop to $1 billion in 2025 as crypto trading cools (2026-03-30)
- Upbit regains 69% Korea crypto share amid competing listing blitz (2026-05-06)
- Data: weekly trading volume of top 5 Korean crypto exchanges drops to 8.28T won (2026-07-18)
- Upbit Statistics (2026-05-28)
- Hana Bank agrees to buy $670 million stake in Upbit operator Dunamu (2026-05-15)
- Dunamu Number of Employees 2026 (2026-06-29)