PSK: Earnings Step Up in H1 2026 While Shares Trade Well Above Their Own Recent Multiples

Thesis

The data supports a picture of improving profitability. Trailing operating income of ₩142.7B compares with ₩88.5B for full-year 2025, and trailing ROE of 23.0% is above the 15.5% reported for 2025. The balance sheet is conservative, with borrowings of only ₩9.8B against cash of ₩146.3B.

The share price has moved much faster than earnings. The one-year return of 290.5% and a 52-week range of ₩28,850 to ₩219,500 show large swings. The current price is about 36.2% below the 52-week high, and the 3-month return is -24.2% even though the 1-month return is +13.8%. P/E rose from 13.6x at the end of 2025 to 32.5x now, and P/B rose from 2.0x to 6.6x, so the market is paying far more per unit of earnings and book value than at that time.

Investor flow, foreign ownership and short balance data are not available, so the data cannot show who has been buying or selling. No recent news headlines are available either.

Business overview

PSK is listed on KOSDAQ and classified in the Machinery sector. It was founded on 2019-04-01 and listed on 2019-05-10. It has two co-CEOs, 이경일 and 하형찬. It has 28,966,714 listed shares and a market capitalization of about ₩4.06T.

Revenue history from the filings is uneven: ₩445.8B in 2021, ₩460.9B in 2022, ₩351.9B in 2023 (-23.7%), ₩398.1B in 2024 (+13.1%) and ₩457.2B in 2025 (+14.9%). The data does not describe products or customers, so the sources of the revenue are not available here.

Financial analysis

These figures come from filed financial statements (DART). Trailing revenue as of H1 2026 was ₩570.9B, operating income ₩142.7B and net income ₩124.9B. That gives an operating margin of 25.0% and a net margin of 21.9%.

For 2025, revenue was ₩457.2B, operating income ₩88.5B (19.4% margin) and net income ₩78.5B. In 2024, operating income was ₩83.9B (21.1%) and net income ₩79.1B. In 2023, operating income was ₩54.1B (15.4%). The 2021 and 2022 margins were 21.1% and 19.9%. The trailing 25.0% margin is the highest in the five-year series shown.

ROE was 26.5% in 2021, 24.1% in 2022, 14.1% in 2023, 18.3% in 2024 and 15.5% in 2025, versus 23.0% on a trailing basis. Liabilities to equity are 22.1%. Cash is ₩146.3B, borrowings ₩9.8B and trailing free cash flow ₩81.3B.

Valuation

At ₩140,000, PSK trades at 32.5x earnings, 6.6x book value and 7.1x sales, with a dividend yield of 0.5%. Enterprise value is about ₩3.92T. EV/EBITDA is not available.

The year-end 2025 multiples were 13.6x P/E and 2.0x P/B, so the current multiples are well above that level. Earlier year-end multiples are not available.

The listed peers show a wide spread. Wonik IPS is at 37.1x P/E and 6.0x P/B, which is close to PSK. Doosan Enerbility is at 252.9x and 5.6x, Hanmi Semiconductor at 106.7x and 31.7x, Jusung Engineering at 1,650.0x and 20.2x, and Rainbow Robotics at 4,456.7x and 57.1x. On P/E, PSK sits below all five peers, and on P/B it is above Doosan Enerbility and Wonik IPS but below the other three. Peer P/Es are distorted by very low earnings in some cases, so the comparison is only loose.

Catalysts

• The half-year report filed on 2026-08-14 showed trailing operating margin of 25.0%, and the next filed results will show whether that level holds.
• An investor relations (IR) event was held on 2026-09-04, though the data does not include its content.
• Several 5%+ holding reports were filed, including on 2026-10-07 and 2026-10-02, which indicate changes in large shareholdings, though details are not in the data.
• Insider shareholding reports were filed on 2026-05-19 and 2026-07-06, which may be of interest to investors tracking insider positions.

Risks

• The valuation has risen sharply, with P/E up from 13.6x at the end of 2025 to 32.5x and P/B from 2.0x to 6.6x, which leaves less room if earnings disappoint.
• Revenue has been cyclical, including a 23.7% fall in 2023, so the current growth may not be steady.
• The share price is volatile, with a 24.2% fall over three months after a 290.5% one-year gain and a 52-week range of ₩28,850 to ₩219,500.
• Frequent 5%+ holding reports suggest shifting large positions, but without investor flow or ownership data the direction cannot be judged.
• The data contains no news headlines, no guidance and no EV/EBITDA, which limits what can be verified about the drivers of the recent profit jump.

Closing view

The filings show a clear improvement in profitability, a strong cash position and very little debt. The share price and multiples have risen even faster, and at 32.5x earnings and 6.6x book value the market is already pricing in much of that improvement. The data cannot explain the cause of the margin gain or show who is trading the stock, so the picture is incomplete. Investors would need to weigh the strong trailing results against cyclical revenue history, a volatile share price and a much higher valuation than a year ago.

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 13, 2026InitiationPSK: Earnings Step Up in H1 2026 While Shares Trade Well Above Their Own Recent Multiples