📊 Samsung Electro-Mechanics: The Day Long-Term Substrate Contracts Met Industry Headwinds - 2026.10.19

Hi, it’s Peanut. 🥜 Let’s start by checking the numbers together again today. Several Samsung Electro-Mechanics stories came out, but the key point is that one more long-term supply contract has been added ^[1].

The long-term supply contract looks right on the numbers

The company disclosed on October 19 that it had signed a long-term supply contract for package substrates used in memory semiconductors with a major global company ^[1]. The value is approximately 360,500,000,000 KRW, and the contract runs for one year, from January 1, 2027, to December 31, 2027. Reports also said that the cumulative value of long-term supply contracts this year has topped 4,300,000,000,000 KRW ^[2]. Is that really the case? The figures themselves are in the disclosure and can be checked, but the disclosure alone doesn’t tell us how this contract will translate into actual revenue. The explanation that orders for high-value-added products are expanding comes from the news coverage, so it’s worth reading with a bit of caution rather than taking it at face value ^[1].

The stock showed another side

The stock didn’t stay quiet on the day of the positive disclosure. The October 19 closing price was ₩1,167,000, down -1.77% from the previous day, and the intraday low was ₩1,100,000. A report said substrate stocks weakened together amid declines in U.S. semiconductor stocks ^[3]. This looks more like an industry-wide headwind than a problem specific to Samsung Electro-Mechanics’ results. In other words, the contract news failed to support the share price, as the market focused on industry conditions before the disclosure.

I’d view market share and the ETF conditionally

Mirae Asset Global Investments’ TIGER Global MLCC & Substrate ETF is set to make its debut tomorrow ^[4]. Its holdings include Murata, Samsung Electro-Mechanics, and Unimicron, with each stock’s weighting capped at 20%. According to Mirae Asset’s presentation, Murata and Samsung Electro-Mechanics account for most of this year’s AI server MLCC market, with market shares of 45% and 40%, respectively ^[5]. However, that is Mirae Asset’s claim, not a fact confirmed by the company. A high market share doesn’t mean the valuation is cheap, either. Since the sources here provide no figures such as PER or EV, Peanut won’t try to calculate further at this point.

There was also a report that glass substrate commercialization is accelerating and technological competition is intensifying as Chinese companies catch up ^[6]. The specific timeline and figures have not been confirmed, so this should be considered separately from the positive expectations.

Peanut’s bearish scenario

Even when sentiment is bullish, it’s worth considering the bearish scenario. Even if cumulative long-term supply contracts increase, a downturn in industry conditions could drag down substrate stocks across the board. And if a seemingly cheap valuation isn’t confirmed by earnings, there could be a value trap. Peanut thinks it still needs to be verified whether this contract will show up in the earnings figures. 💼

Here’s one question to leave you with: how much of the contract value will translate into actual revenue and profit, and how much will industry headwinds offset the impact of the disclosure? Those are the two things to watch next. 📉

📰 Reference News (6)

1

Samsung Electro-Mechanics to supply substrates worth 360,500,000,000 KRW to global memory company

네이버뉴스 · 2026.10.19

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4

“AI bottlenecks are moving beyond memory to MLCCs and substrates”… Mirae Asset to list global components ETF

네이버뉴스 · 2026.10.19

📰 View original

5

Mirae Asset: “AI bottlenecks are expanding beyond memory to MLCCs and substrates”

네이버뉴스 · 2026.10.19

📰 View original