Kiwoom Securities: Korean brokerage, margin rates and AI order permissions

Kiwoom’s remote adult opening route is for Korean nationals resident in Korea aged at least 19. It requires a smartphone, Korean identity card or driving licence, and identity verification through a small bank transfer or video call. The mobile-web route also requires a phone in the applicant’s own name. Passport identification is not accepted on this route.[1]

The OpenAPI portal warns that an ID without online access for three years is restricted until identity verification on Kiwoom’s website. This is an access-control rule, with no inactivity fee stated in that notice. It separately addresses IDs whose entire set of brokerage accounts has been closed; restoring an ID is not the same action as reopening or funding a securities account.[10]

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Kiwoom is a multi-asset securities broker. Its comprehensive account covers Korean and foreign shares, funds, bonds and equity-linked securities. Domestic futures/options, overseas futures/options, FX margin, gold spot and stock CFDs appear as separate product accounts in the opening guide. Their listing does not mean that every new client qualifies for every product or receives identical trading permissions.[1]

Interest equals principal × applicable annual rate × elapsed days / 365, or 366 in a leap year, excluding the first accrual day. Regular interest is collected on the first business day monthly, with an adjustment for interest already collected when repaying. Kiwoom quotes initial collateral of 45%–60% and a 140% maintenance ratio. A/B/C-group loans initially run 180 days, extendable twice by 90 days to 360; D/E loans run 60 days, extendable twice by 30 days to 120. Renewal depends on continuing security eligibility. Unrepaid maturity debt can enter forced sale the following business day. Depositing money alone does not complete voluntary cash repayment: the client must submit the repayment request. A sale can leave a residual debit, which must still be paid.[5]

The recurring-order coupon is tied to the specified domestic amount-based purchase service. It is not usable against any discretionary trade, and credited benefits first repay an account debit. The campaign page excludes specified credit and other specialized accounts. Check the eligibility screen before making a purchase for a reward.[7]

The domestic-share guide explains limit, market and conditional-limit orders, plus immediate-or-cancel and fill-or-kill conditions. An IOC instruction cancels an unfilled remainder immediately; FOK requires the entire requested quantity to be executable. A Korean conditional-limit order converts to a market order at the closing-auction transition. This is different from a standing price-stop instruction. The account’s order record must establish acceptance, partial execution and cancellation; an instruction sent from another interface can affect the same holdings.[2]

HTS screen 0347 estimates how a hypothetical share trade changes orderable and withdrawable cash. Kiwoom cautions that a sale simulation can be inaccurate when unfilled sell orders already exist. An estimate is therefore a planning aid: check actual pending orders and the withdrawal balance before requesting cash.[14]

Foreign-share sale proceeds become withdrawable when their Korean domestic settlement processing is complete, including the relevant holiday effects. The foreign-share FAQ requires real-name verification for foreign-currency movements and transfers of holdings. Do not apply the Korean share T+2 rule indiscriminately to each overseas market. The broker describes foreign shares as held through KSD and overseas custody arrangements.[3]

For an outgoing domestic securities transfer, HTS 0836 accepts the receiving broker and an account in the same client’s name. Screen 0839 provides transfer status and cancellation; lent securities require recall through the separate lending process. Confirm current transfer charges and any ineligible holdings before starting. The reviewed instruction page does not state a current universal outgoing fee or a complete account-closure charge.[16]

HTS 0365 provides settlement-based account history covering trading, cash deposits and withdrawals, and securities movements. Its filters include account, period and exchange, with tax totals in the transaction display. This supports reconciliation, but the guide does not establish a universal downloadable CSV or tax-return-ready export across desktop and mobile.[15]

Kiwoom’s current disclosure limits deposit protection to eligible protected cash: principal plus eligible interest up to KRW100 million per person, aggregated with other protected products at the firm. Financial investment products and their investment losses are outside that protection. A protected-cash limit should not be applied to the full market value of a shares, futures or CFD portfolio.[6]

ARS 1544-9900, menu 82, provides incident registration: option 1 blocks outgoing cash and securities, and option 3 reports an OTP incident. These are concrete emergency controls. The published guide does not specify a universal post-reset withdrawal waiting period; recovery and release of a restriction require the applicable identity checks.[17]

When the app or desktop cannot be used, the published telephone and ARS dealing routes provide alternative ways to send an instruction. ARS orders require enrolment and an order password. Confirm the status of an earlier instruction before repeating it; alternative access cannot guarantee exchange execution during a wider outage.[17]

Kiwoom publishes an official REST/OpenAPI repository with Korean- and US-share queries and trading functions. Access requires an OpenAPI application and app credentials, with separate credentials for real trading and simulation. The published implementation is not a general permission to trade every Kiwoom product account. A market unsupported by the selected account can return no results or reject an instruction.[11][13]

The execution documentation explicitly warns that an AI caller can set that confirmation flag. Human approval therefore depends on the connected MCP client’s tool-approval interface; the flag alone is not proof that a person approved the order. US cancellations are whole-order cancellations and US modifications change price rather than quantity, whereas domestic cancellation can specify quantity. A live connection can consequently affect actual money and positions.[13]

The setup instructions keep order tools disabled unless the operator explicitly enables them. To remove that local authority, disable the setting and restart the connector. That action does not itself send cancellation instructions to the broker: review outstanding orders and holdings separately. These are the operational consequences of disabling a local tool, not an advertised portfolio-management or social-copy termination service.[12]

The operating entity is Kiwoom Securities Co., Ltd. (키움증권), established on 31 January 2000 and headquartered in Seoul. Its official outline identifies KOSPI listing 039490. The broker’s English introduction reports 21 consecutive years leading Korea’s stock-brokerage market share from 2005, through 2025. This is the firm’s statement about Korean stock brokerage; it does not establish first place in every product or a ranking of customer outcomes.[18][19]

On 19 November 2025, Korea’s Financial Services Commission designated Kiwoom a comprehensive financial investment business entity in the KRW4 trillion equity category, with authorization for short-term financing business. That is a firm-specific regulatory designation. It does not make Kiwoom a deposit-taking bank or extend the protected-cash limit to investment products. This profile concerns the Korean securities company and its product accounts.[20]

Headquarters

Seoul, South Korea