Battery ETFs Lead South Korea’s October Market Gains on AI Data Center Bets
Eight of South Korea’s 10 best-performing exchange-traded funds this month track the secondary battery industry, as investors anticipate stronger energy storage demand from artificial intelligence data centers.
Exchange-traded funds focused on secondary batteries have emerged as some of the strongest performers in South Korea’s stock market this month, reflecting investor expectations that the artificial intelligence boom will generate fresh demand for energy storage systems.
Data compiled by the Korea Exchange showed that eight of the 10 best-performing listed ETFs in October were tied to the secondary battery industry. The concentration of battery funds near the top of the rankings indicates that investors are making a broad sector bet rather than backing only one battery producer.
The KODEX Secondary Battery Industry Leverage ETF, managed by Samsung Asset Management, posted the market’s highest return for the month through Thursday, gaining 19.94 percent. Mirae Asset Global Investments’ TIGER KRX Second Battery Top10 Leverage ETF ranked next with an 18.45 percent return over the same period.
Both are leveraged products, which are designed to amplify movements in their underlying benchmarks. Their sharp advances therefore show the strength of the recent rally, but leveraged funds can also magnify losses when the market reverses. The monthly rankings capture performance over a short period and do not by themselves establish that the gains will continue.
The immediate investment case is linked to energy storage systems, or ESS, rather than only to electric vehicles, the market traditionally associated with Korean battery makers. Artificial intelligence data centers require large and reliable power supplies, increasing interest in storage equipment that can help manage electricity demand and support grid stability.
Kim Gwi-yeon, an analyst at Daishin Securities, maintained an overweight view on the sector. Kim said order momentum expected toward the end of this year could be followed next year by share-price momentum as battery companies’ ESS sales and profitability improve.
The rally highlights how expectations surrounding AI infrastructure are spreading into adjacent industries in the Korean market. Semiconductor and data-center investment may be the most visible parts of the AI expansion, but investors are also assessing the equipment and power systems needed to operate those facilities.
For South Korea’s battery sector, stronger ESS demand could provide another growth channel alongside electric vehicles. For the broader market, however, the heavy presence of leveraged battery ETFs among October’s leaders also points to concentrated enthusiasm. Future performance will depend on whether anticipated orders translate into measurable improvements in sales and earnings.