Hmnex: Revenue Surge and Large Share Price Swings, With Model Estimate Far Below Market Price

Thesis

The data supports a business that has grown sharply: 2025 revenue rose 109.1% and trailing operating margin reached 9.2%, up from 0.1% in 2023. Net income of ₩11.4B is much larger than operating income of ₩4.4B, so earnings quality depends on non-operating items that the data does not break down.

The data does not support a clear picture of cash generation. Free cash flow is negative at ₩2.4B, borrowings of ₩22.8B exceed cash of ₩7.9B, and the model estimate sits far below the market price. The share price has been very volatile: it is up 204.1% over one year but down 6.8% over one month and well below its 52-week high. Foreign ownership fell from 3.8% to 2.9% over 60 days. No recent news headlines are available.

Business overview

Hmnex is a KOSDAQ-listed company in the semiconductors sector, founded in 1993 and listed in 1999. It has 61,365,626 listed shares and a market capitalisation of ₩155.3B, which is small next to the listed peers in the data (₩2.4T to ₩1,086T). Annual revenue was ₩15.2B in 2021, fell to ₩13.4B in 2022, and was ₩14.5B in 2023 and ₩15.2B in 2024 before jumping to ₩31.7B in 2025. A filing in March 2026 reported a change in revenue or profit/loss structure of 30% or more; the data gives no further detail on it.

Financial analysis

These figures come from filed financial statements. Trailing revenue as of H1 2026 was ₩48.1B, operating income ₩4.4B (margin 9.2%) and net income ₩11.4B (margin 23.7%). Return on equity was 8.6%, compared with 8.5% in 2025, 4.5% in 2024 and 1.8% in 2021.

Operating income was ₩2.4B in 2025, ₩318M in 2024 and ₩14M in 2023. Net income was ₩11.0B in 2025, ₩5.5B in 2024 and ₩8.2B in 2023, consistently well above operating income.

The balance sheet shows liabilities at 21.2% of equity, which is modest, but borrowings of ₩22.8B exceed cash of ₩7.9B. Free cash flow is -₩2.4B. An August 2026 filing amended a decision on a loan provision (extension of loan period); the data gives no further detail.

Valuation

At ₩2,530 the shares trade at a P/E of 13.7, P/B of 1.1, P/S of 3.2 and EV/EBITDA of 34.6, with no dividend yield. Year-end P/B was 0.4 to 0.5 in 2022 to 2025, and year-end P/E ranged from 4.7 to 47.5, so the current P/B is above its recent history.

Among peers, P/E is 6.7 for SK hynix, 12.6 for DB HiTek, 14.4 for Hana Micron and 10.4 for Jeju Semiconductor. Peer P/B ranges from 1.8 to 40.1, higher than Hmnex's 1.1. Fadu has no P/E available.

The valuation model uses a 5-year discounted cash flow at a 7.3% rate. It gives a model estimate based on the assumptions shown of ₩401 per share in the base case, ₩46 in the bear case and ₩1,066 in the bull case, based on trailing figures to H1 2026. All three are below the current price of ₩2,530. This is not a target or a reason to buy or sell.

Catalysts

• The half-year report filed on 2026-08-14 gave the latest trailing figures, and the next periodic filing will show whether margins hold.
• The amended loan provision filing of 2026-08-04 concerns an extension of a loan period, and further filings on it could matter.
• The March 2026 filing on a change in revenue or profit/loss structure of 30% or more points to a shift in the business mix.
• Over the last 20 days foreign investors were net sellers of about ₩1.1B while retail investors were net buyers of about ₩1.1B, so changes in these flows may affect trading.
• Short balance is 0.4%, so short selling is not currently a large factor in the data.

Risks

• Net income is much larger than operating income, and the data does not show what drives the gap.
• Free cash flow is negative at ₩2.4B while borrowings of ₩22.8B exceed cash of ₩7.9B.
• The model estimate of ₩401 base and ₩1,066 bull case is below the share price of ₩2,530, so the market price embeds assumptions beyond the model.
• The share price has moved from a 52-week low of ₩801 to a high of ₩10,240, showing high volatility.
• Foreign ownership fell from 3.8% to 2.9% in 60 days, and the market cap of ₩155.3B is small relative to peers.

Closing view

The data shows a small company whose revenue and operating margin have improved markedly, with modest liabilities relative to equity. Against that, cash flow is negative, net income relies on items outside operations, and the share price sits well above the model estimate based on the assumptions shown. The 204.1% one-year gain and the large distance from the 52-week high both point to unusually wide price swings. The evidence is mixed and is best read alongside upcoming filings.

Model estimate of fair value

Bear

₩46

-98%

Base

₩401

-84%

Bull

₩1,066

-56%

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 7.3%). Bear and Bull move the main assumptions by fixed steps. See and change the assumptions

Filings and data used

• Half-year report (Jun 2026)Aug 14, 2026
• [Amended] Decision on Loan Provision (Extension of Loan Period)Aug 4, 2026
• Quarterly report (Mar 2026)May 15, 2026
• Annual general meeting resultsMar 27, 2026
• Report on Appointment, Dismissal, or Mid-Term Resignation of Independent DirectorsMar 27, 2026
• Audit report submittedMar 19, 2026
• Annual report (Dec 2025)Mar 19, 2026
• Notice of Reason for Concentrated Shareholders' Meeting DateMar 11, 2026
• Shareholders' meeting calledMar 11, 2026
• Change in Revenue or Profit/Loss Structure of 30% or More (15% or More for Large Companies)Mar 11, 2026
• Reference Document for Proxy Solicitation of Voting RightsMar 11, 2026
• Notice of shareholders' meetingMar 11, 2026
• Daily prices up to 2026-10-28
• Financial statements, trailing 12 months as of H1 2026
• Our fair value model, statements as of TTM to H1 2026

Report history

1. Oct 29, 2026InitiationStart of coverage (reader request)Hmnex: Revenue Surge and Large Share Price Swings, With Model Estimate Far Below Market Price