Kostek Systems코스텍시스템

Kostek Systems is a small semiconductor and display equipment maker with no reported annual financials in the data, and its share price is up sharply over three months but down over one year.

Kostek Systems makes wafer transfer, advanced packaging and Micro LED equipment, with customers including Samsung Electronics and SK hynix. The data includes no annual or trailing financial statements, no valuation multiples and no news headlines, so the current earnings and profitability position cannot be assessed from it. Recent filings are mostly governance and shareholder events, including a change of CEO in July 2026 and an IR event on 19 October 2026.

What stands out

• The share price closed at ₩5,390 on 23 October 2026, with a market cap of about ₩15.5B on roughly 2.87 million listed shares.
• Returns are mixed: about +43.7% over three months, roughly flat over one month (-0.2%), and -12.5% over one year; the 52-week range is ₩0 to ₩7,460, and the low figure looks like missing data.
• Filings since June 2026 include a change of largest shareholder, a change of CEO, an extraordinary shareholders' meeting and several IR events.
• Trading flows over 20 days show institutions buying about ₩89.9B and retail selling the same amount, with no foreign ownership reported.
• Valuation ratios, dividend history and enterprise value are not available in the data; the dividend yield is shown as 0%.

What to watch

• Whether annual or half-year financial statements are filed, since the data currently has no reported financials to judge revenue or profit.
• Follow-up filings on the change of largest shareholder and the new CEO, including any changes to strategy or governance.
• Customer concentration risk, given the company's reliance on a small number of large chip and display manufacturers named in its profile.