Dowooinsys도우인시스

Dowooinsys is a small foldable-glass supplier whose shares have risen sharply over three months, while its recent profit looks strong against a thin 2025 base.

Dowooinsys makes ultra-thin glass used as the cover for foldable smartphones, with Samsung Display as its main customer. Trailing results to the first half of 2026 show revenue of about ₩155.7B, operating income of about ₩11.7B and net income of about ₩24.6B, a much stronger picture than 2025 when operating income was about ₩3.4B and net income about ₩0.5B. The share price closed at ₩27,450 on 2026-10-26, about 70.6% higher over three months but down 4% over one year.

What stands out

• Trailing operating margin is 7.5%, up from 2.4% for full-year 2025, while net income is well above operating income, which the filings do not explain in the data provided.
• Trailing net income of about ₩24.6B is larger than operating income, so the profit figure depends on items not detailed in this data; treat it with care.
• Valuation shows a P/E of about 12.2 and P/B of 1.6, below several peers such as Samsung Electro-Mechanics and Isupetasys, though the company is much smaller.
• The company's own DCF-based fair value model gives a base of ₩12,470, bear ₩7,358 and bull ₩21,459, well below the current price; this is a model output, not a forecast.
• Foreign ownership rose from 0.5% to 1.5% over 60 days, while retail investors were net sellers over the last 20 days and institutions were net buyers.

What to watch

• The next half-year or quarterly results, to see whether the improved trailing profit holds up.
• Customer concentration on Samsung Display and the foldable phone demand that drives it; the data gives no other customers.
• Ongoing insider shareholding and 5%+ holding reports, which are frequent in the recent filings; news headlines are not available in this data.