Key Takeaways
- Secondary battery stocks experienced significant gains, while major semiconductor companies faced declines.
- The U.S. government has designated energy storage systems as critical to national security, potentially reshaping the market.
- Analysts stress the importance of actual order wins and earnings growth for sustaining the recent stock rebound in the battery sector.
Market Dynamics Shift as Battery Stocks Surge
Secondary battery stocks have seen substantial increases while semiconductor giants have experienced a corrective downturn. This market shift reflects rotational buying after previous oversold conditions, catalyzed by a new U.S. policy recognizing energy storage systems (ESS) as essential for national security.
Recent data from the Korea Exchange shows Samsung Electronics and SK Hynix suffered declines of 8.7% and 4.5%, respectively, from September 21 to 28. Conversely, South Korea’s LG Energy Solution rose by 7.7%, Samsung SDI gained 19.5%, POSCO Future M increased by 20.3%, EcoPro BM advanced by 11.9%, and L&F surged by 29.0%.
Profit-taking in the semiconductor sector is driven by concerns over rising interest rates coupled with significant AI-related capital expenditures. U.S. Federal Reserve Chair Kevin Warsh’s recent comments on inflation heighten anticipation of a rate hike in September. Additionally, Alphabet’s first-ever negative free cash flow, attributed to extensive AI infrastructure investment, has negatively influenced investor confidence.
Choi Bo-young, a research fellow at Kyobo Securities, notes that the market rebound is not solely about capital moving from semiconductors to batteries, but also responds to U.S. ESS policy directions amidst this shift. On September 26, the U.S. declared a national emergency regarding its bulk-power system to ensure reliable power supplies for AI data centers and advanced manufacturing. This includes battery energy storage systems, grid-tied inverters, and uninterruptible power supplies. Equipment from foreign manufacturers, seen as posing national security risks, may face new restrictions.
This evolving regulatory landscape is expected to transform the competitive dynamics of the U.S. ESS market, prioritizing local production capabilities and supply chain integrity over mere pricing. Choi emphasized that the change is monumental, as South Korean companies previously needed to lower prices to compete against cost-effective Chinese rivals. The ability to efficiently produce and supply within the U.S. could become a critical competitive edge.
The North American ESS market is currently expanding rapidly; its first-half size hit 75.9 GWh, a remarkable 83% increase from 41.5 GWh the previous year. In this period, the combined market share of two South Korean manufacturers grew from 13.9% to 19.7%, with LG Energy Solution’s share jumping from 4.2% to 13.6%.
Nonetheless, analysts warn that for the upward price momentum to persist, expected policy changes must translate into actual contracts, improved utilization rates, and profit growth. Choi cautioned that continuous enhancement of second-half profits and expanding ESS orders are crucial for the secondary battery sector to transition into a robust, earnings-driven rally, rather than just a passing market trend.
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