According to Korea Exchange data on Tuesday, Samhyun soared 29.8 percent and HigenRNM climbed 24.7 percent. Wonik Holdings, SPG, and CP System each gained more than 10 percent, while Rainbow Robotics rose 3.1 percent.
Two robot makers now rank among the KOSDAQ's 10 largest companies.
Rainbow Robotics placed fifth with a market value of 8.2 trillion won ($5.98 billion), and Robotis took 10th at 4.55 trillion won after rising 50.6 percent since Aug. 3.
Physical artificial intelligence spending would climb to 3.1 trillion won next year from 900 billion won under the 2027 budget proposal.
Eugene Investment & Securities said state support would expand beyond research into purchases, field trials and mass production.
"We will actively support the private sector through the 2027 budget for future industry core components," said Huh Chang, second vice minister at the Ministry of Economy and Finance, during a Sept. 10 visit to robot maker Robotis in Seoul.
The rally has been uneven. Rainbow Robotics traded at 425,500 won as of early Wednesday, down about 15 percent from Aug. 14, while Robotis fell 4.8 percent to 309,000 won.
Other parts makers are also showing similar signs, Samhyun shedding 6.55 percent, HigenRNM falling 5.6 percent as well. Others have also fell around 3 to 5 percent as well.
AJP Takeaways
- South Korean robot stocks rallied on Sept. 15, 2026, as Samhyun rose 29.8 percent and Hyzen R&M gained 24.7 percent on the KOSDAQ, according to Korea Exchange data.
- Rainbow Robotics and Robotis ranked fifth and 10th by market value on the KOSDAQ as of Sept. 15, 2026, with five of the top 10 companies in chips and electronic parts.
- South Korea's 2027 budget proposal would raise physical AI spending to 3.1 trillion won from 900 billion won, pending approval by the National Assembly.
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