Volume Halved, Deals Multiply: South Korea's Smaller Exchanges Bet on M&A

Record volume contraction is changing the value proposition

South Korea's crypto market has seen about 89% of its average daily July trading volume disappear compared with the same month a year earlier, down to $305 million from $2.82 billion. For exchanges that depend on trading fees, that is far worse than a slow quarter: it makes the standalone business case much harder to defend.

That helps explain why M&A is starting to look more attractive than survival on own terms. The broader slump was already evident in half-year data: the five registered exchanges generated $366.58 billion of volume in the first half of 2026, a 54.6% year-over-year decline. When trading flow falls that sharply, buyers care less about current revenue alone and more about license access, compliance infrastructure, and who can structure around incoming rules.

Why regulation is accelerating the pressure

The immediate pressure point is ownership. The FSC has proposed capping major shareholders at 15% to 20% ownership stakes, and an industry executive said deals that were close to closing were sent back to the drawing board. Smaller exchanges have less capital and less flexibility to wait out that uncertainty.

So the setup is increasingly twofold: weaker trading reduces standalone value, while stricter ownership rules can still force restructuring. In that context, selling into buyer demand can look more pragmatic than waiting for a retail rebound that may arrive too late.

Coinone shows why buyers are paying for access, not just flow

That volume collapse has also changed what buyers are willing to pay for. After H1 2026 volume fell 54.6% year over year, smaller exchanges are being valued less as pure trading platforms and more as compliance packages, licensed access points, or route-to-market assets.

Ownership structure is now the bottleneck

The key variable is no longer just daily turnover. It is who will be allowed to own the exchange once the rules are finalized. The FSC's proposed 15% to 20% ownership stakes limit shifts the discussion from simple revenue multiples to acquisition math: how much is a compliant license and operating platform worth to a foreign exchange, brokerage, or financial group that wants local access?

Coinone makes the restructuring risk explicit

Coinone is the clearest example. OKX is in discussions to acquire roughly 20% of Coinone, while Korea Investment & Securities is separately discussing the same stake. But this is not a straightforward growth investment. The One Group holds 34.30%, Com2uS Holdings owns 21.95%, and CEO Cha Myung-hoon holds 19.14%. Under the proposed regime, both The One Group and Com2uS Holdings already exceed the 20% threshold, which means any realistic path to market likely involves restructuring existing control rather than simply bringing in outside capital.

For buyers, that changes the valuation debate. A target exchange has to be priced for license access, user assets, operational replacements, and cleanup costs. For sellers, it can create urgency: if control has to unwind regardless, a negotiated exit may look better than a messy regulatory reset.

Strategic appeal and timing risk

The strategic appeal is clearest for foreign platforms. The Coinone talks would have given OKX its first licensed foothold in South Korea after it was removed from local app stores.

The timing risk is just as clear. Proposed ownership caps can alter deal economics quickly if the final rule is tighter than expected or if compliance conditions become more demanding. That means even a strategically valuable target can be repriced before a deal closes.

What will decide whether these deals still make sense

The next signpost is whether liquidity stabilizes before ownership rules harden.

The freshest signal is that weekly volume across the five main fiat exchanges hit a two-year low, with roughly 9.97 trillion won traded in the week of July 3 to July 10. Thinner flow leaves less room for error in any restructuring, so if trading continues to slip, deal pricing can re-rate lower before any merger or minority investment is signed.

At the same time, the rulebook remains the main clock. The FSC's proposed 15% to 20% ownership cap has already delayed deals, and Coinone shows how sticky that problem can be: OKX is in discussions to acquire roughly 20% of Coinone, while existing shareholders already exceed the proposed limit.

Signals to watch

• Positive for deals: weekly fiat-gate volume stops falling after the recent two-year low, or disclosed talks turn into signed transactions despite ownership cleanup.
• Negative for deals: another leg down in trading, especially if the prior fifth consecutive weekly drop resumes.
• Reversal case: retail demand recovers strongly enough to offset regulatory friction, or the timetable around the January 1, 2027 gains tax changes the near-term flow picture.

The cleaner read is to treat smaller exchanges as optionality rather than certainty: valuable in theory, but only if liquidity stabilizes and the ownership rules make the disclosed deals executable.