Robotis: Loss-Making Machinery Maker Trades at High Sales and Book Multiples After a Sharp One-Month Drop

Thesis

The data supports a picture of a small company whose revenue has grown every year since 2021, from ₩22.4B to ₩38.9B in 2025, and whose trailing twelve months to H1 2026 reached ₩48.1B. Profitability has not kept pace. 2025 was the only recent year with an operating profit (₩3.3B, 8.6% margin), and the trailing figures are back to an operating loss of ₩7.6B (-15.8% margin). The market value is large relative to the business: price-to-sales is 70.7 and price-to-book is 9.4. That implies the market is pricing in much more than the filed numbers currently show, but the data contains no guidance or news to explain what. Price swings are large: the 52-week range is ₩155,000 to ₩464,000, and the stock is down 20.6% over one month after rising 24.8% over three months. Investor flow, foreign ownership and short balance data are not available, so we cannot say who is driving the moves.

Business overview

Robotis is listed on KOSDAQ in the Machinery sector. It was founded on 1999-03-25 and listed on 2018-10-26, with 13,213,934 listed shares. The CEO is listed as 김병수. Market capitalization is ₩3.4T and enterprise value is about ₩3.3T. Revenue history from DART: ₩22.4B (2021), ₩25.9B (2022), ₩29.1B (2023), ₩30.0B (2024) and ₩38.9B (2025). Growth was 15.6%, 12.7%, 3.1% and 29.6% in 2022 through 2025. No business description or news headlines are available in the data.

Financial analysis

These figures come from filed financial statements (DART). Trailing revenue as of H1 2026 is ₩48.1B, operating income is -₩7.6B and net income is -₩3.8B, giving an operating margin of -15.8%, a net margin of -7.8% and ROE of -1.7%. For 2025, revenue was ₩38.9B, operating income ₩3.3B and net income ₩5.1B, with ROE of 2.5%. Net income was higher than operating income in 2025, which suggests non-operating gains, though the data does not give the source. Earlier years were loss-making at the operating level: -₩0.9B (2021), -₩2.2B (2022), -₩5.3B (2023) and -₩3.0B (2024). The balance sheet is strong, with liabilities-to-equity of 3.0% and cash of ₩84.9B. Borrowings data is not available. Trailing free cash flow is -₩10.2B, so cash is being consumed at present.

Valuation

Price-to-earnings and EV/EBITDA are not meaningful because trailing earnings are negative, and no dividend yield is available. Price-to-book is 9.4 and price-to-sales is 70.7. At the end of 2025 the P/E was 679.8 and P/B was 11.0, so book value multiples are somewhat lower now. The data has no earlier year-end multiples for comparison. Among the listed peers, P/B ranges from 5.6 (Doosan Enerbility) to 57.1 (Rainbow Robotics): Hanmi Semiconductor 31.7, Jusung Engineering 20.2 and Wonik IPS 6.0. Robotis sits in the middle of that range. Peer P/E figures are extremely high or elevated (37.1 to 4,456.7), so high multiples are common in this peer set.

Catalysts

• The half-year report for June 2026, filed on 2026-08-14, is the latest full set of results and showed trailing losses.
• A filing on 2026-07-08 reports an acquisition of shares in another company, which may matter for strategy, though the data gives no details.
• Repeated insider shareholding reports (most recently 2026-10-06) and a trading-plan report on 2026-08-06 show ongoing insider activity worth monitoring.
• A 5%+ holding report was filed on 2026-09-08, indicating a notable change in a large shareholding.
• An amended 2025 annual report was filed on 2026-07-08, so the earlier annual figures may have been revised.

Risks

• Trailing operating and net income are negative, and free cash flow is -₩10.2B, so earnings have not yet matched the valuation.
• Price-to-sales of 70.7 leaves the share price sensitive to any shortfall in revenue growth.
• The share price fell 20.6% in one month and sits well below the 52-week high of ₩464,000, showing high volatility.
• Operating profit in 2025 was a single year after four years of losses, so the record of sustained profitability is short.
• Investor flow, foreign ownership, short interest and news data are unavailable, which limits visibility into market positioning.

Closing view

The filed data shows a growing top line, a very low-debt balance sheet and ₩84.9B in cash, set against recent operating losses, negative free cash flow and high valuation multiples. Price-to-book of 9.4 is within the peer range, but price-to-sales of 70.7 reflects expectations that the financial statements do not yet demonstrate. With no flow, short interest or news data, the evidence is incomplete, and the outcome depends on whether revenue growth converts into sustained profit.

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, 2026InitiationRobotis: Loss-Making Machinery Maker Trades at High Sales and Book Multiples After a Sharp One-Month Drop