Rainbow Robotics is a specialist robotics company founded by researchers from KAIST's HUBO Lab. Its flagship is collaborative robots that work alongside people on factory and logistics floors, and it also develops precision pointing mounts, quadruped robots, humanoids, and autonomous mobile robots, with robotics-related sales accounting for about 93% of the total. At the end of 2024, Samsung Electronics exercised a call option to raise its stake to 35.0%, becoming both the largest shareholder and a major customer. Revenue has accelerated for two straight years, growing +76% in 2025 and +117% in the first quarter, yet collaborative robots alone have not yet broken even, so the company remains in an investment phase. What stands out most is the strength of having a major shareholder and sales channel in Samsung Electronics, which brings both funding and demand to its humanoid and collaborative-robot roadmap, weighed against the caution that it still runs an operating loss and its surface multiples are high, so its value is priced on the future scenario of expanding automation demand and the pace of turning profitable.
At-a-glance assessment financial health · growth · profitability · valuation
- Revenue rose 76.4% year over year, and the pace is quickening (3-year trend: rising).
- Most recent quarter (Q1 2026) revenue was 116.6% higher than a year earlier.
- ROE is 1.1% (controlling-interest basis). It is above the sector average.
- Operating margin is -7.3%.
- The P/E sits above the sector median, reflecting elevated expectations.
Ownership & governance As of 2025-12-31
Largest shareholder Samsung Electronics 35% (corporate)
Controlling bloc incl. related parties 41.63%
With the controlling bloc holding 42%, the ownership structure is stable.
🔎 In-depth analysis
- Rainbow Robotics is a specialist robotics company founded in 2011 by researchers from KAIST's HUBO Lab, with roots in the technology that produced Korea's first bipedal walking robot, HUBO.
- What actually earns money today is its flagship collaborative robots (small industrial robots that work safely next to people), to which it adds ultra-precise pointing mounts for astronomy and defense, as well as next-generation platforms such as quadruped robots, mobile humanoids, and autonomous mobile robots (AMRs).
- Robotics-related sales account for about 93% of the total, so it is fair to see it essentially as a pure-play robotics company.
- That said, collaborative-robot sales alone have not yet broken even, and the company remains in an investment phase, continuing to pour money into R&D and business expansion for future robots.
- The latest closing price is ₩431,000 and the market cap is ₩8.4 trillion.
- The price sits below its 20-day line (₩532,375) and below its 60-day line (₩638,342).
- Being below both the short- and medium-term moving averages, the trend looks subdued.
- The RSI (a supplementary gauge that measures upward versus downward momentum over the past 14 days on a 0-100 scale) is 30.0, a neutral level.
- The one-month change is -27.9%, the three-month change is -20.9%, and the position versus the 52-week high is -51.0%.
- Relative strength versus the KOSDAQ is 82 (on a 1-99 scale, converting the past year's return versus the index with more recent periods weighted more heavily; higher means stronger than the market).
- That places it in roughly the top 17% of all stocks by strength.
- Over the past three months it lagged the index by 2.4%.
- It is best to read the chart alongside trading volume and disclosure dates.
- On surface metrics alone, the P/E (how many times one year's profit the share price is) exceeds 7,000x and the P/B (how many times book net asset value the share price is) is also extreme at 75x.
- But the company still ran an operating loss of -₩2.5 billion in 2025, and its net profit of ₩1.4 billion came mostly from non-operating items such as interest and financial income on its large cash pile, so the size of net profit is erratic.
- In fact, the first quarter of 2026 swung back to a net loss (-₩0.9 billion).
- When profit itself is small and unstable like this, arguing whether the stock is cheap or expensive on the P/E or P/B carries little meaning (this point is revisited in the valuation section).
- On the financial-safety side, it is actually robust.
- Its current ratio is 1,266%, meaning cash-like assets overwhelmingly exceed short-term debt, and its debt ratio (debt versus equity) is around 107%, not a heavy burden.
- With ample cash following the capital injection from Samsung Electronics, it has plenty of capacity to keep investing while absorbing losses.
- The revenue growth trend is clear.
- Revenue in 2025 was ₩34.1 billion, up +76.4% from the prior year, an acceleration from the +26.8% of the year before.
- Even over a five-year span, it grew from ₩9.0 billion to ₩34.1 billion, roughly 40% a year on average.
- First-quarter 2026 revenue was ₩9.1 billion, surging +116.6% year on year, so growth has steepened rather than slowed.
- The core driver of this growth is expanding collaborative-robot sales as automation demand rises on manufacturing floors.
- However, as revenue grows, R&D and business-expansion costs rise with it, so the operating loss continues.
- In other words, it is more accurate to see this today not as "a company that makes a profit" but as "a company rapidly scaling revenue while preparing for the point of turning profitable." The company's confirmed profit plan for this year has not been officially verified, so it is hard to pin future earnings to a specific number.
- The biggest change was Samsung Electronics exercising a call option at the end of 2024 to raise its stake to 35.0%, becoming the largest shareholder and consolidating Rainbow Robotics as a subsidiary.
- Samsung Electronics set up a Future Robot Promotion Group reporting directly to its CEO, positioning the development of future robots such as humanoids as a key growth driver, and stated its plan to use Rainbow Robotics' collaborative robots, dual-arm robots, and autonomous mobile robots in its own manufacturing and logistics automation.
- This is highly meaningful over the medium to long term in that it secured both a stable major shareholder and a large customer at once.
- In February 2026, a disclosure on changes in revenue or earnings structure (over 30%) reported 2025 results, and in March a new facility-investment disclosure laid out plans to expand production capacity.
- This was followed in May by the convening of an extraordinary shareholders' meeting and the filing of a quarterly report.
- The facility investment reads as a capacity expansion to meet growing collaborative-robot demand and, over the medium term, supports revenue growth.
- The strengths are clear.
- Revenue has accelerated for two straight years, growing fast at +76% (2025) and +117% (first quarter), and with Samsung Electronics as its largest shareholder and a major customer, both funding and sales channels have attached themselves to its collaborative-robot and humanoid roadmap.
- It also has ample cash and the capacity to keep investing while absorbing losses.
- The cautions are equally clear.
- It still runs an operating loss, its net profit is unstable and swayed by non-operating items, and the extreme surface P/E and P/B mean the market has already loaded heavy expectations onto future robot growth.
- Ultimately this stock is priced not on "current earnings" but on the future scenario of "the expansion of the humanoid and collaborative-robot market and the pace of turning profitable." The more automation and humanoid demand grows as planned and the closer profitability comes, the stronger it is; if growth slows or the turn to profit is delayed, those high expectations can turn back into a burden.
🔎 Valuation vs peers Inconclusive
Among domestically listed robotics specialists (centered on collaborative robots), Doosan Robotics—closest in business character—is taken as the primary peer. Since both companies are still before the stage of generating profit, they are compared on growth, finances, and momentum rather than on P/E.
| Peer | P/E | P/B | ROE |
|---|---|---|---|
| Doosan Robotics | 0.00x | 13.09x | -15.92% |
Rainbow Robotics still runs an operating loss, and its net profit is very small and unstable, swayed by non-operating items. So judging cheap or expensive on surface multiples like a P/E of 7,000x or a P/B of 75x is effectively meaningless, and the limits of valuing on last year's results are especially large here. Its peer, Doosan Robotics, is also at a pre-profit stage where a P/E does not hold (P/B 16.79x, ROE -15.9%); however, whereas Doosan Robotics' revenue has recently contracted, Rainbow Robotics' revenue is accelerating from +76% to +117%, so its growth momentum is clearly ahead. Because the company's confirmed profit plan for this year has not been officially verified and the direction of net profit swings between losses, it is also hard to build a precise valuation on forward earnings. In the end, this is a growth-theme stock priced not on current earnings but on the future scenario of an expanding humanoid and collaborative-robot market and the pace of turning profitable, so rather than declaring it over- or undervalued on simple multiples, leaving the verdict Inconclusive is the honest call.
Price history Close · MA20 · MA60
The latest close is ₩431,000 and the market capitalization is ₩8.4 trillion. The price sits below its 20-day moving average (₩532,375) and below its 60-day moving average (₩638,342). It is under both its short- and medium-term moving averages, so the trend looks subdued. The RSI (a supplementary indicator that gauges the strength of gains versus losses over the past 14 days on a 0-100 scale) is 30.0, a neutral level. The one-month change is -27.9%, the three-month change is -20.9%, and the position relative to the 52-week high is -51.0%. Relative strength versus the KOSDAQ is 82 (on a 1-99 scale, converted from returns against the index over the past year with more weight on recent performance; higher means stronger than the market). It is stronger than roughly 83% of all stocks. Over the past three months it lagged the index by 2.4%. Chart interpretation is best done alongside trading volume and the dates on which disclosures occur.
Relative performance stock vs index · start = 100
Excess return vs index · 3M -2.38% / 6M +12.81% / 12M +56.03%
Key metrics vs sector median
Valuation
The P/E of 5879.95x is above the sector median (29.49x). The P/B of 62.48x is above the sector median (6.92x).
Enterprise value (EV)
EV = market cap + net debt. It reflects cash and debt, so it captures the real cost of the whole business that market cap alone misses; lower multiples are cheaper relative to earnings or sales.
Profitability & financials
The operating margin is -7.3%. The debt ratio is 107.1%, so the financial structure is moderate.
Growth FY2025 · annual report (consolidated)
| Item | 2023 | 2024 | 2025 | YoY |
|---|---|---|---|---|
| Revenue | $10.1M | $12.8M | $22.6M | +76.38% ↑ faster |
| Operating profit | -$29.6M | -$2.0M | -$1.6M | — |
| Net profit | -$592,895 | $1.4M | $942,135 | -33.43% |
| 5-year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | $5.9M | $9.0M | $10.1M | $12.8M | $22.6M |
| Operating profit | -$683,130 | $862,187 | -$29.6M | -$2.0M | -$1.6M |
| Net profit | -$5.2M | $3.8M | -$592,895 | $1.4M | $942,135 |
| Revenue CAGR | 4-yr avg 39.66% | ||||
Revenue rose 76.4% year over year (2023 ₩15.3 billion → 2024 ₩19.3 billion → 2025 ₩34.1 billion), and the three-year trend is 'rising'. The pace of growth also quickened from the prior year. Operating results are in the red, so a swing back to profit matters more than the growth rate here. Over the 5 years on record, revenue compound annual growth (CAGR) is 39.7%. The two-year revenue CAGR is 49.5%. In the most recent quarter (Q1 2026), revenue was 116.6% higher than the same period a year earlier.
Latest quarterly results Q1 2026 · vs year-ago
Technical indicators
What stands out
- Revenue grew 76.4% year over year, a sign of growth.
Points to watch
- The price is high versus peers, so expectations already appear priced in.
Recent news & events searched · sourced
- 2024-12-31IRSamsung Electronics exercised a call option to raise its stake to 35.0%, becoming the largest shareholder and consolidating Rainbow Robotics as a subsidiary. It announced the creation of a CEO-level Future Robot Promotion Group and plans to use the company's collaborative robots, dual-arm robots, and AMRs.Secured both a stable major shareholder and a large customer at once. A key medium- to long-term event that forms the funding and sales-channel foundation of the humanoid and collaborative-robot roadmap. Source
- 2026-02-27EarningsDisclosure of a change in revenue or earnings structure of over 30%. 2025 revenue grew to ₩34.1 billion (+76.4%), but the operating result stayed in the red at -₩2.5 billion, with net profit of ₩1.4 billion.High revenue growth is confirmed, but the turn to an operating-level profit falls short. Reaffirms an investment phase in which growth and losses coexist. Source
- 2026-03-27FilingNew facility-investment disclosure (corrected). A capacity-expansion capital plan to meet growing collaborative-robot demand.Capacity expansion supports medium-term revenue growth, but in the short term the rise in investment and costs can keep weighing on earnings. Source
- 2026-05-15FilingFiled its first-quarter 2026 quarterly report. Revenue grew even more steeply to ₩9.1 billion (+116.6%), but losses continued with an operating loss of -₩1.6 billion and a net loss of -₩0.9 billion.Confirms accelerating revenue growth. But net profit swinging back to a loss shows there is large uncertainty in estimating forward earnings. Source
Figure cross-check computed ↔ external
Recent filings
- 2026-05-21Disclosure
- 2026-05-20Shareholders' meeting notice
- 2026-05-15PeriodicQuarterly report
- 2026-03-31Disclosure
- 2026-03-30Shareholders' meeting notice
- 2026-03-27Amended filing
- 2026-03-20PeriodicAnnual business report
- 2026-03-20Audit report
- 2026-03-13Shareholders' meeting notice
- 2026-03-13Shareholders' meeting notice
- 2026-03-13Shareholders' meeting notice
- 2026-02-27EarningsEarnings filing
📖 Plain-language glossary — expand if you are new to this
- P/E
- How many times a year's net profit the price is worth (lower is cheaper relative to earnings). The P/E here is on trailing (last full-year) results; for companies whose earnings swing fast (memory chips and other cyclicals/high-growth), a forward P/E on this year's expected earnings is more accurate.
- P/B
- Price relative to net assets (equity). Around 1x means it trades near book value; below 1x means below book.
- P/S
- Price relative to a year's revenue — useful for growth companies with thin earnings.
- Net debt / EV
- Net debt = interest-bearing debt − cash. Negative means more cash than debt (net cash). EV (enterprise value) = market cap + net debt, closer to what it would cost to buy the whole business.
- EV/EBIT · EV/EBITDA · EV/Sales
- Enterprise value against operating profit (EBIT), EBITDA, or revenue. Unlike P/E these reflect debt and cash; lower is cheaper relative to earnings power or sales.
- FCF / FCF yield
- Free cash flow = operating cash − capex, the cash actually left over. FCF yield = FCF ÷ market cap; higher means more cash generated per unit of market value.
- Intrinsic value (DCF)
- Future free cash flow (or, for some capex-heavy but profitable names, forecast earnings) discounted to today to estimate per-share value. Because it shifts a lot with the discount-rate and growth assumptions, it is shown as a bear/base/bull range, and the basis and assumptions are disclosed in one line beneath it.
- ROE
- How much profit the company earns in a year on its equity (%). Higher means better returns on capital.
- EPS / BPS
- Earnings per share / net assets (book value) per share.
- Operating / net margin
- Profit left from the core business / final profit after tax and interest, per unit of revenue.
- Debt ratio
- Debt relative to equity (%). Higher means more reliance on borrowing (norms vary by sector).
- Current ratio
- Assets convertible to cash within a year against debt due within a year. Above 100% leaves some short-term headroom.
- Interest coverage
- How many times operating profit covers the interest owed. Below 1x means operating profit alone struggles to cover interest.
- Dividend yield / payout ratio
- The year's dividend as a % of today's price / the share of earnings paid out as dividends.
- Revenue CAGR
- Multi-year growth expressed as a single yearly average (compound annual growth rate).
- RSI (short-term signal)
- Whether recent price action is overheated or beaten down. Above 70 is overbought, below 30 oversold.
- MA20 / MA60 (moving averages)
- The 20- and 60-day average price. Price above them signals a firmer short-term trend.
- vs 52-week high
- How far below the past year's peak the price sits now (%).
All figures are for reference only; how they read varies by sector and over time.
Sources: Korea FSC market-price API (data.go.kr), OpenDART, KRX/KIND — public data only.
Bong Stocks presents public-data-based information for reference only. It is not investment advice and contains no target prices, ratings, or buy/sell recommendations. Verify independently before making any decision.