🔋 Samsung SDI: Verifying ESS Safety and Pension Fund Buying Trends - 2026.07.19

Samsung SDI's recent market trends can be interpreted through two axes: strengthening the technical reliability of its ESS (Energy Storage System) business and the portfolio restructuring of institutional capital. In particular, the consistency between safety verification and capital flows is drawing attention.

🔗 ESS Safety Verification and Product Competitiveness

Samsung SDI announced that its batteries for Uninterruptible Power Supply (UPS) passed all evaluation criteria in the indoor large-scale fire test conducted by UL Solutions, a global safety certification body ^[1]. This objectively proves the product's fire-blocking safety, serving as a positive signal for enhancing product reliability in high-reliability demand markets such as data centers.

Securing this safety is becoming a key differentiator in ESS contract bidding. Amidst the ESS bidding war among the top three battery makers, Samsung SDI is emphasizing safety and performance by leveraging its cylindrical batteries with Nickel-Cobalt-Aluminum (NCA) cathode materials and its integrated ESS product, the 'Samsung Battery Box (SBB)' ^[2]. Its gradual acquisition of supply dominance in the traditional battery-centric ESS market contrasts with LG Energy Solution's strategy of building solutions that cover not just ESS but also the power grid market, illustrating the competitive landscape of the K-battery industry ^[3].

🏭 Raw Material Supply Chain Stabilization and Next-Gen Technology Outlook

Changes are also occurring in the supply stability of nickel, a key raw material for battery manufacturing. Canadian Nickel is pursuing an 'all-in' strategy, focusing on its nickel business by selling non-core assets ^[4]. This could impact the supply stability and price volatility of nickel, a core raw material for battery manufacturers like Samsung SDI, making it a point of reference for investors regarding raw material risk management.

In terms of next-generation battery technology, Samsung SDI is making large-scale investments, including plans to become the first in the world to produce all-solid-state batteries in Ulsan ^[5]. This is part of the Samsung Group's nationwide 625 trillion won investment plan and holds significant meaning for strengthening competitiveness in next-generation battery technology. Master Song Jae-hyuk also emphasized the future changes in the battery industry and technological leadership by presenting 'Expansion of Next-Gen Battery Demand in the AI Era and Commercialization Prospects of All-Solid-State Batteries'.

📚 Capital Flows and Stock Price Volatility

An interesting point regarding capital flows is that Samsung SDI recorded net buying of 389.5 billion won, appearing evenly distributed alongside Samsung Electronics Preferred and Hyundai Mobis in the analysis of top stocks for pension fund net buying ^[6]. This is interpreted as a result of normal portfolio adjustments rather than irregular swaps designed to circumvent specific regulations.

In terms of stock price, it showed a pattern of closing in the 430,000 won range after fluctuating up and down over the last five trading days ^[7]. As of July 17, the closing price was 434,500 won, with a change rate of -4.30%. Institutional net buying was -31.37 billion won and foreign net buying was -640 million won, indicating a short-term correction phase.

Acorn's Perspective

Samsung SDI has secured a technological advantage by meeting safety standards in the ESS market, and capital inflows due to normal portfolio adjustments by pension funds are also confirmed. Structural changes in the raw material supply chain and the next-generation technology roadmap of all-solid-state batteries can serve as mid-to-long-term growth drivers. Acorn believes that the verification of ESS safety and the portfolio restructuring by pension funds will act as factors supporting Samsung SDI's structural stability. It is necessary to focus on observing structural factors such as strengthening ESS bidding competitiveness and stabilizing raw material supplies, rather than short-term stock price volatility.

📰 Reference News (7)

2

"Another 1 Trillion Won Order Coming" ... Top 3 Battery Makers in ESS Bidding War

네이버뉴스 · 2026.07.19

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3

LG Ensol, From Battery Supplier to ESS Operator... Expanding the Base of K-Batteries [Weekly Battery]

네이버뉴스 · 2026.07.19

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4

'Investing in Samsung SDI' Canadian Nickel Sells Non-Core Assets... 'All-In' on Nickel Business - The Guru

더구루 · 2026.07.18

📰 View original

5

[3 Major Megatrends] ① Samsung's Nationwide 625 Trillion Won Investment... 149 Trillion Won Cash Reserve is Sufficient

네이버뉴스 · 2026.07.19

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6

[K-Market Insight] The Illusion of the 'Pension Fund Selling Theory'... Semiconductor Swap Main Body Public Funds

네이버뉴스 · 2026.07.19

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7

Samsung SDI Stock Price Over Last 5 Trading Days: Closes in 430,000 Won Range Amid Fluctuations - Top Star News

톱스타뉴스 · 2026.07.18

📰 View original