KOSDAQ Surges 4% Triggering Buy Sidecar, What's Driving Semiconductor and Bio Stocks?

On the 11th, the KOSDAQ index surged by more than 4% intraday, triggering a buy sidecar that temporarily suspends the validity of program buy orders. This explosive rally was primarily driven by the strong simultaneous upward momentum in semiconductor equipment/materials and biotechnology sectors.

What's Driving the Semiconductor and Bio Stock Rally?

The explosive rise in the KOSDAQ market can be attributed to two main factors. First, global AI semiconductor demand has exceeded expectations, bringing expectations for improved second-half earnings among domestic semiconductor equipment and material companies to a peak. Second, massive bargain hunting has flowed into bio stocks, which had undergone a prolonged correction, and positive clinical trial results from some major companies strongly stimulated investor sentiment.

In particular, institutional and foreign investors engaged in net buying in the KOSDAQ market, driving the index higher. A decoupling phenomenon is also being observed, where funds are flocking to the KOSDAQ, which highlights growth potential, while the large-cap KOSPI struggles due to geopolitical risks.

FAQ: Most Frequently Asked Questions by Investors

• Q. How does a sidecar activation affect the market?
  A. A buy sidecar is triggered when futures prices surge by 6% or more for one minute, suspending program buy orders for five minutes. It acts as a safety mechanism to temporarily calm an overheated market and give investors an opportunity to make rational judgments.
• Q. Is the strength in semiconductor and bio stocks a short-term theme or a long-term trend?
  A. Semiconductor equipment and materials are backed by the clear fundamental improvement of global AI investment expansion, so it is widely viewed as a mid-to-long-term trend. On the other hand, bio stocks can be highly volatile depending on expectations for interest rate cuts and individual pipeline achievements, requiring a selective approach.
• Q. Should retail investors enter the market now?
  A. In a rapidly surging market capable of triggering a sidecar, there is a high possibility of short-term profit-taking sell-offs. Therefore, a strategy of buying in installments during corrections, focusing on earnings stocks with attractive valuations, is recommended rather than chasing the rally.