402340 - SK Square Co., Ltd.

402340 Summary
Holding Companies
Stock Price & Overview
₩1,041,000 +60,000 (+6.12%) Close · Sep 4, 2026 KST
KOSPI | ₩KRW | Close: ₩1,041,000  ≈ US$744  ·  Market cap ₩137.3tn (≈ $98.1bn)
Why this page exists. Korean issuers file to DART, not the SEC, and almost nothing is published in English. Titles here are translated; where kstock has read the filing, the row carries the explanation and the amount in won and dollars. How we pick »

402340 DART Filings

DART

Large business group status disclosure — quarterly, individual company

Filing08/27/26title translated
ks

SK hynix To Buy ₩40tn Of Its Own Stock, Lifting SK Square's Stake For Free

SK Square filed this as a material decision of its subsidiary. SK hynix's board resolved on August 19 to buy 24,070,000 of its own shares between August 20 and November 19, an estimated ₩40.0tn using the ₩1,662,000 close on August 18. That is 3.3% of SK hynix's 730.5m shares, about 3.2% of its ₩1,236.7tn market capitalisation, and roughly 93% of its FY2025 net income of ₩42.95tn. The stated purpose is raising shareholder value through cancellation, and a separate share-cancellation decision was filed the same day, so these shares are not going into treasury to sit there. For SK Square, whose ₩140.8tn market value rests mainly on its SK hynix holding, the mechanical consequence is that its percentage stake in SK hynix rises without it spending anything. The share count is an estimate and will move with the price.

Buyback08/19/26kstock explained
₩40.0tn≈ $28.6bn
ks

SK hynix Commits To Cancel The Whole ₩40tn Before Buying Any Of It

Filed by SK Square for its subsidiary. At the same August 19 board meeting that approved SK hynix's ₩40.0tn buyback, the board also resolved to cancel every share it buys. The document names 24,070,000 common shares out of 730,492,365, which is 3.30% of the company, but that count is simply the ₩40.0tn budget divided by the ₩1,662,000 close on August 18. The filing says plainly that the real number will differ as the price moves and that a correction will follow. The cancellation date is left blank: SK hynix will retire the whole block in one go once purchases finish on November 19. Par value is ₩5,000 and the filing confirms issued capital will not fall, only the share count. For SK Square this is the half that matters, since a buyback on its own would leave the shares sitting in treasury and available to be sold back out.

Buyback08/19/26kstock explained
₩40.0tn≈ $28.6bn
DART

Loss Incurred on Derivatives Trading

Derivatives08/14/26title translated
DART

Half-Year Report ×3

Periodic08/14/26title translated
DART

New Facility Investment ×2

Capex08/07/26title translated
ks

SK Square Files SK hynix's 82-Share Director Payment A Second Time

This is SK Square's duplicate of a filing SK hynix made the same day. SK hynix's board resolved on August 7 to transfer 82 of its own common shares to its six independent directors as part of their remuneration, an estimated ₩122.6m at the ₩1,495,000 close on August 6. Delivery ran from August 8, and the transfer was executed on August 19 at ₩1,500,000 for ₩123.0m. The shares moved from SK hynix's treasury account into each director's personal brokerage account. The board gave its reason for changing independent-director pay: directors' legal liability has widened, the role has grown more demanding, and the range of business they must supervise has expanded. SK hynix put the dilution at under 0.0001% of its shares. Nothing in this document concerns SK Square's own shares, its own board, or its own cash.

Buyback08/07/26kstock explained
₩123m≈ $88k
ks

SK Square files SK hynix's ₩273.3 billion quarterly dividend as a subsidiary event

This is SK Square reporting a decision made by SK hynix, not by itself. SK hynix declared a quarterly dividend of ₩375 per share totalling ₩273.3bn with an August 31 record date, and SK Square — which holds a controlling interest in the chipmaker — is required to disclose it. For SK Square shareholders the payment is an inflow, not an outflow: cash moves from the subsidiary toward the parent in proportion to its stake. SK Square's own 2025 net income of ₩8.82tn is overwhelmingly equity-method earnings from SK hynix rather than operating profit from its ₩1.41tn of revenue, so this filing is a rare instance of that relationship producing actual cash.

Dividend08/07/26kstock explained
₩273.3bn≈ $195m
ks

SK Square reports SK hynix's August 31 dividend record date

The second of two same-day filings in which SK Square passes along a decision by SK hynix rather than one of its own. It reports that SK hynix fixed August 31, 2026 as the record date for the quarterly dividend declared at the same board meeting, under Article 54-2 of SK hynix's articles of incorporation, with entitled holders determined by record date alone. Six outside directors attended. Nothing in this document concerns SK Square's own shareholders directly — it tells them when the cash flowing up from the chipmaker will be fixed, not when or whether SK Square will pass any of it on.

Dividend08/07/26kstock explained
DART

New Facility Investment

Capex07/22/26title translated
DART

Board Resolution — Cancellation of Shares

Buyback07/22/26title translated
DART

Material event report (overseas listing) (subsidiary)

Filing07/13/26title translated
DART

Depositary receipt issuance (subsidiary)

Filing07/10/26title translated
DART

Material event report (paid-in capital increase) (subsidiary)

Filing07/10/26title translated
DART

Material event report (overseas listing decision) (subsidiary)

Filing07/10/26title translated
DART

Depositary receipt issuance (subsidiary)

Filing07/06/26title translated
DART

Material event report (paid-in capital increase) (subsidiary)

Filing07/06/26title translated
DART

Treasury Share Purchase — Result Report

Buyback06/30/26title translated
DART

Sustainability report (voluntary)

Filing06/30/26title translated
DART

Subsidiary leaves the holding company

Filing06/29/26title translated
DART

Serious industrial accident (subsidiary)

Filing06/26/26title translated
DART

Depositary receipt issuance (subsidiary)

Filing06/24/26title translated
DART

Material event report (paid-in capital increase) (subsidiary)

Filing06/24/26title translated
DART

Material event report (overseas listing decision) (subsidiary)

Filing06/24/26title translated
DART

Asset Purchase from a Related Party

Related party06/19/26title translated
DART

Large business group status disclosure — annual and Q1, individual company

Filing05/29/26title translated
DART

Corporate governance report

Filing05/29/26title translated
DART

Quarterly Report

Periodic05/14/26title translated
DART

Treasury Share Disposal — Result Report

Buyback05/13/26title translated
DART

Material Event — Board Approves Disposal of Treasury Shares

Buyback05/13/26title translated
4 routine filings (insider holdings reports, IR schedules)DART

5% Ownership Report — Short Form

Ownership08/12/26title translated
DART

Insider / Major Shareholder Holdings Report

Ownership08/07/26title translated
DART

5% Ownership Report — Short Form

Ownership06/08/26title translated
DART

Insider / Major Shareholder Holdings Report ×5

Ownership05/13/26title translated
34 filings on file, grouped where one event produced many. Source: DART, operated by Korea's Financial Supervisory Service.

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What a US investor should know

  • Trading hours09:00–15:30 KST — 20:00–02:30 US Eastern the night before.
  • Daily limitKorean stocks can move at most ±30% in a session before trading halts.
  • Getting exposureKRX shares are not directly tradable in most US brokerage accounts. The usual routes are Korea ETFs or an international account.
  • ReportingKorean issuers file to DART, not the SEC. Half-year and quarterly reports land about 45 days after period end.