JONBUR Research · Initiation

Samyoung · 003720 · Rubber & plastics

Samyoung: Profits Have Risen Sharply While the Share Price Has Fallen Back From Its High

Why this report

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Samyoung's trailing revenue reached ₩191.0B with an operating margin of 12.3% as of H1 2026, yet the shares fell 19.3% over the past month to ₩5,200. The model estimate of ₩3,070 per share is below the current price, and the model's range is wide.

Written Oct 24, 2026 · Data as of Oct 23, 2026 · 0 views

This is not financial advice. The report does not recommend buying or selling anything.

Thesis

The data supports a clear improvement in earnings. Operating margin rose from 0.7% in 2022 to 9.7% in 2025 and 12.3% on a trailing basis, and ROE reached 27.6%. Trailing free cash flow of ₩29.1B is positive and substantial relative to the ₩176.8B market value.

The data does not explain the recent share price drop of 19.3% over one month and 14.0% over three months. No news headlines are available. Foreign ownership fell from 9.7% to 4.1% in 60 days, and the 20-day flows show foreign net selling against small net buying by institutions and retail. Filings show a change in the largest shareholder's holdings and a 5%+ holding report in early August, but their details are not in the data. The dividend yield is shown as 0.0%.

Business overview

Samyoung is a KOSPI-listed company in the rubber and plastics sector, founded in 1959 and listed in 1976. It has 34.0M listed shares and a market value of ₩176.8B. It is led by co-CEOs 이석준 and 조영한.

Revenue was ₩133.3B in 2021, ₩147.7B in 2022, ₩122.6B in 2023, ₩126.0B in 2024 and ₩153.2B in 2025. The share price is ₩5,200, against a 52-week range of ₩4,365 to ₩13,980, so it sits near the low end of that range. Its one-year return is still +12.8%.

Financial analysis

These figures come from filed financial statements. Revenue for the twelve months to H1 2026 was ₩191.0B, up from ₩153.2B in 2025, which itself grew 21.6%. Operating income was ₩23.5B, compared with ₩14.9B in 2025, ₩9.1B in 2024 and ₩1.0B in 2022. Net income was ₩23.5B, a net margin of 12.3%.

2023 net income of ₩18.6B was well above operating income of ₩6.0B, which suggests non-operating gains that year. ROE was 16.2% in 2025 and 27.6% on a trailing basis.

The balance sheet shows liabilities at 118.0% of equity, cash of ₩33.9B and borrowings of ₩50.0B, so borrowings exceed cash by about ₩16.1B. Free cash flow was ₩29.1B. An August filing mentions a decision on the acquisition of tangible assets, with no amount in the data.

Valuation

On trailing figures the P/E is 7.5, the P/B is 1.8 and the P/S is 0.9. Year-end P/E was 15.9 in 2025, 15.1 in 2024 and 8.2 in 2023, so the current P/E is lower than in the last three year-ends. The current P/B of 1.8 is below the 2.4 of 2025 year-end. EV/EBITDA is not available, and enterprise value is ₩192.9B.

Among the listed peers, P/E ranges from 3.2 (Kumho Tire) to 21.2 (Pum-Tech Korea), and P/B from 0.2 to 2.7. Samyoung's P/B of 1.8 is above most of them. The peers are much larger tire-related names, so comparability is limited.

The valuation model uses a 5-year discounted cash flow at a 7.4% rate. It gives a model estimate of ₩3,070 per share in the base case, ₩1,033 in the bear case and ₩6,679 in the bull case, based on the assumptions shown. The current price of ₩5,200 is above the base case and within the bear-to-bull range. The estimate is not a target and not a reason to act.

Catalysts

  • The half-year report filed on 2026-08-13 gives the latest trailing figures, showing revenue of ₩191.0B and operating income of ₩23.5B.
  • The 2026-08-10 filing on the decision to acquire tangible assets could change the company's capacity or spending, though no details are in the data.
  • The change in the largest shareholder's holdings and the 5%+ holding report on 2026-08-03 point to ownership changes worth monitoring.
  • Foreign ownership dropped from 9.7% to 4.1% in 60 days, and further flow changes could affect trading.
  • The next quarterly filing will show whether the higher margins are holding.

Risks

  • The share price fell 19.3% in one month and sits well below its 52-week high of ₩13,980, and the data gives no reason for the move.
  • The model's base estimate of ₩3,070 is below the current price of ₩5,200, and the bear-to-bull range of ₩1,033 to ₩6,679 shows high uncertainty.
  • Earnings have been volatile: operating margin was 0.7% in 2022, and 2023 net income relied on items beyond operations.
  • Borrowings of ₩50.0B exceed cash of ₩33.9B, and liabilities are 118.0% of equity.
  • Foreign investors have been net sellers, and no dividend yield is shown (0.0%), so returns depend on the share price.

Closing view

The filings show a real improvement in revenue, margins, ROE and cash flow, and the trailing P/E of 7.5 is below recent year-end levels. Against that, the share price has dropped sharply, foreign ownership has fallen, and the model estimate of ₩3,070 per share is below the market price, with a wide range. The data shows a company with stronger earnings whose recent profits may or may not last, and it does not settle that question.

Model estimate of fair value

Bear
₩1,033
-79%
Base
₩3,070
-38%
Bull
₩6,679
+34%

Model estimate based on the assumptions shown. Not a price target and not a buy or sell signal.

Base case of the 5-year discounted cash flow model on the stock's Valuation tab (statements TTM to H1 2026; discount rate 7.4%). Bear and Bull move the main assumptions by fixed steps. See and change the assumptions

Filings and data used

Report history

  1. Oct 24, 2026InitiationStart of coverage (reader request)Samyoung: Profits Have Risen Sharply While the Share Price Has Fallen Back From Its High

Built only from jonbur's own data: prices and investor flows, filed financial statements and filings, and news headlines. Disclosed (filed) data is labelled as such. Written by AI and may contain mistakes.

This is not financial advice. The report does not recommend buying or selling anything.

Source: KRX statistical information