ISC: Sharp Profit Rebound and a 137.3% One-Year Share Price Gain, Now at 52.3x Earnings

Thesis

The data supports a strong operating recovery. Revenue grew 24.4% in 2024 and 26.2% in 2025, and operating margin rose from 7.7% in 2023 to 27.3% in 2025 and 30.3% on a trailing basis. The balance sheet is conservative, with liabilities at 12.0% of equity, and free cash flow is positive at ₩49.8B.

What the data does not support is a low-priced entry point. The P/E of 52.3x is above the 42x at the end of 2025, and trailing ROE of 14.0% is modest next to a 7.0x price-to-book multiple. The share price is up 24.8% in three months and sits below its 52-week high of ₩292,500, so the market is clearly pricing in continued growth. Investor flow, foreign ownership, short balance and news data are not available, so we cannot say who is driving the move.

Business overview

ISC is listed on KOSDAQ and classified under Retail & Trade in this dataset. It was founded on 2001-02-22 and listed on 2007-10-01, and it is led by a sole CEO, 김정렬. It has 21,197,058 listed shares and a market capitalisation of about ₩4.06T at a ₩191,500 close on 2026-10-12. The data does not describe its products or customers, so we limit this section to the numbers. Revenue was ₩144.7B in 2021, ₩178.9B in 2022, ₩140.2B in 2023, ₩174.5B in 2024 and ₩220.2B in 2025. Trailing revenue is ₩278.1B as of H1 2026.

Model estimate of fair value

The valuation model has no estimate for this company yet (not enough data, or no positive value with the base case).

Report history

1. Oct 27, 2026Update noteEarningsISC Q3 Preliminary Results: Operating Profit Up 25.4% Year on Year to ₩21.8B
2. Oct 13, 2026InitiationISC: Sharp Profit Rebound and a 137.3% One-Year Share Price Gain, Now at 52.3x Earnings