QuantumRail퀀텀레일

QuantumRail's shares have fallen sharply over the past year, and the latest half-year figures show losses after a profitable 2025.

QuantumRail, a Korean maker of smart cards such as mobile USIM and financial cards plus related card-issuance systems, reported trailing twelve-month revenue of ₩14.4B and an operating loss of ₩2.7B to H1 2026, with a net loss of ₩7.4B. The share price closed at ₩572 on 2026-10-16, down about 55% over one year and near the bottom of its 52-week range of ₩508 to ₩3,580.

What stands out

• Trailing revenue of ₩14.4B is well below 2025's ₩18.5B, and the trailing operating margin is -18.7% against 10.3% in 2025.
• 2025 was profitable with a ₩233M net income, but the trailing net loss is ₩7.4B, so the swing back to losses is large.
• Cash of ₩2.1B is shown against no reported borrowings, and trailing free cash flow is positive at ₩1.6B.
• Recent filings include a convertible bond acquisition, conversion price adjustments, a loan extension, a loss on derivatives trading, and a change of CEO on 2026-09-30.
• Foreign ownership rose from 4.2% to 5.2% over about 60 days, while the 20-day flows data show retail investors as the largest net buyers.

What to watch

• Upcoming full-year and quarterly results, since the filings do not show a forecast for profitability.
• Further convertible bond conversion adjustments and the effect of any conversions on the share count, which is 35.5 million shares listed.
• Follow-up on the CEO change, the loan extension, and the derivatives trading loss named in recent filings; the data contains no news coverage to explain them.