Subscription deposit (청약 증거금)

Cash placed up front when subscribing to a Korean IPO — usually 50% of the order, refunded for unallocated shares.
Also known as: IPO margin deposit

What it is

Korean retail IPO orders require cash up front. The usual rate is 50%: ordering 100 shares at a ₩10,000 offer price needs ₩500,000. After allocation, only the amount for shares received is taken and the rest is returned on the refund date.

How much is needed

For the equal-allocation tranche the minimum order (often 10 shares) is enough; the pro-rata tranche scales with the deposit. Deposit rates, minimum orders and per-person limits differ by broker and deal, so check the prospectus and broker notice.

What to keep in mind

The deposit is locked from the subscription date to the refund date and normally earns no interest. You may subscribe at several brokers, but not to the same IPO twice.

IPO allocation calculator

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This explanation is general information, not investment advice. Rules reflect September 2026 and may change; check official exchange and broker notices.