Samsung & SK Hynix Hit Intraday Record Highs: What's Next for the AI Chip Rally?
Driven by rising AI demand and Micron's target price upgrades, domestic semiconductor giants hit intraday record highs. Despite an afternoon pullback from profit-taking, AI supercycle expectations remain strong.

AI Semiconductor Supercycle: Samsung and SK Hynix Rally
On the 20th, Samsung Electronics and SK Hynix both hit intraday record highs in the South Korean stock market, showcasing the power of semiconductor leaders. The explosive demand for Artificial Intelligence (AI), which has been driving global benchmark indices, directly fueled strong expectations for earnings improvements among domestic memory chip makers. In particular, forecasts of exponential growth in High Bandwidth Memory (HBM) demand have severely heated up investor sentiment.
Micron Target Price Upgrades Spark the Surge
One of the main triggers for this surge was the positive earnings outlook for the global memory giant Micron Technology. As Micron's target price was successively upgraded by major investment banks and hotly discussed in global communities, analysis gained traction that domestic top-tier memory companies would mutually benefit. Although large-scale profit-taking by institutional and foreign investors in the afternoon erased some of the gains (with KOSPI closing at 9,052) due to fatigue from short-term market spikes, the intraday highs are interpreted as a flare signaling the start of an AI semiconductor supercycle.
Key FAQ
Q. Why did the KOSPI index drop in the afternoon?
A. After KOSPI broke through the 9,300 level, large-scale profit-taking sales poured out mainly from institutional investors feeling burdened by the short-term spike. However, foreign capital inflow into specific blue-chip stocks like semiconductors continues, so analysts largely view this as a short-term breather rather than a structural downtrend.
Q. Is it a good time to invest in semiconductor stocks now?
A. The increase in semiconductor demand driven by AI technology advancement has become a long-term mega-trend. However, as the concentration on large-cap semiconductor stocks intensifies recently, there is also wariness about market overheating. A strategy of dollar-cost averaging from a long-term perspective, keeping in mind the possibility of short-term price adjustments, may be effective.