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South Korea Crypto Volume Plunges 55% as Upbit Gobbles Market Share

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South Korea Crypto Volume Plunges 55% as Upbit Gobbles Market Share

2026-08-01 08:01 UTCBy AlphaScala Research DeskSource reporting: Crypto newsEditorial standards1 views

South Korea Crypto Volume Plunges 55% as Upbit Gobbles Market Share

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South Korean crypto exchange volume fell 54.6% in H1 2026 as Upbit's market share rose to 67.4%. A 22% crypto tax takes effect Jan. 1, 2027, adding pressure on smaller platforms.

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Trading volume across South Korea's five major won-based crypto exchanges fell 54.6% year over year in the first half of 2026. The drop concentrated liquidity on market leader Upbit, leaving smaller platforms scrambling for a new strategy.

Upbit, Bithumb, Coinone, Korbit and Gopax generated roughly $366.58 billion in combined trading volume during the first six months, NexBlock reported. That is down from the corresponding period in 2025.

The slide accelerated into July. From July 1 through July 27, the five exchanges recorded cumulative volume of about 17.34 trillion won, down 16.9% from the same period in June.

South Korea is one of Asia's most active retail crypto markets. The figures point to weaker activity across the board, but the pain is not evenly shared.

Upbit processed roughly 11.69 trillion won during the July period. Its volume fell 10%, yet its market share jumped from 62.3% to 67.4% as competing platforms suffered steeper declines.

Bithumb recorded about 4.71 trillion won in volume. Its share of the five-exchange market dropped from 30.7% to 27.1%, widening the gap between Upbit and Bithumb to 40.3 percentage points.

NexBlock attributed the shifting competitive dynamics to liquidity migrating toward the largest platforms during the broader market slowdown. Deep liquidity attracts more traders by supporting larger orders with less price slippage. That advantage reinforces the position of leading exchanges when overall activity declines, leaving smaller platforms with thinner order books.

Coinone, Korbit and Gopax now face growing pressure to differentiate beyond retail spot trading. According to NexBlock, smaller exchanges are exploring partnerships with securities firms, institutional services and internal restructuring. Future competition may depend less on headline volume and more on stablecoin liquidity, regulatory compliance and institutional access.

For US investors, South Korean exchange data offers a window into retail demand in a major Asian market, though the won-based platforms primarily serve domestic users. Reduced Korean volume may weaken one source of global altcoin liquidity and price discovery, particularly for tokens that historically attracted strong local trading interest.

The volume decline comes as South Korea prepares to implement its long-delayed cryptocurrency tax. Finance Minister Koo Yun-cheol confirmed on July 29 that the government will begin taxing crypto gains on Jan. 1, 2027, as previously scheduled.

"We are pushing forward with the plan to tax cryptocurrency starting next year as scheduled," Koo said.

Income generated by transferring or lending virtual assets will be classified as other income. Annual gains exceeding 2.5 million won, or about $1,740, will face a 20% national tax, while a local income tax will raise the combined rate to 22%.

Investors who remain below the annual threshold will not owe tax under the framework. Taxpayers are expected to file their first returns in May 2028 for gains earned during 2027.

The policy creates an additional consideration for domestic traders after three previous delays. Its effect on exchange volume will depend partly on how platforms implement transaction reporting and cost-basis calculations before the rules take effect.

South Korea is simultaneously expanding state-backed investment in strategic industries, though the initiative is separate from its crypto tax and exchange policies. The government approved plans for a new account under the Korea Investment Corporation, the country's sovereign wealth fund. The account will begin with at least 20 trillion won, or roughly $13.7 billion, and may invest domestically in artificial intelligence, data centers and other strategic sectors.

KIC has historically focused on overseas assets. The expanded mandate reflects a wider effort to direct institutional capital toward domestic industries while seeking long-term returns.

For crypto exchanges, the immediate challenge remains rebuilding activity while complying with tighter rules. Upbit's rising market share suggests smaller platforms may need institutional partnerships, stablecoin services, or structural changes to compete in a market where total trading volume continues to fall.