Seoul Electronics & Telecom Co (027040) Fair Value & Analysis

Technology · KR · Market cap 24.6B KRW

Below-average quality, and screening another 64% overvalued on our models.

What matters now

• The price sits above even our optimistic bull case (850.14 KRW). The favourable scenario is already priced in.
• Weak quality (43/100) and above fair value at the same time, the margin of safety is missing on both counts.
• The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution.

Price vs Fair Value (5 years)

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 22, 2026.

How to read this chart

60‑month range 900.00 KRW – 5,800 KRW · fair‑value band 667.36 KRW – 850.14 KRW · the 2,045 KRW price screens above the 738.88 KRW fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Jul 22, 2026.

Full chart & analysis →

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Analysis

Seoul Electronics & Telecom Co (027040) currently trades at 2,045 KRW, while our model-based Fair Value estimate is 738.88 KRW, implying the stock looks roughly 63.9% overvalued today. The Quality Score stands at 43/100 (below-average quality), in the Technology sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium, the entry price still matters most (evidence: low).

Over the trailing twelve months, Seoul Electronics & Telecom Co generated revenue of 30.9B KRW at a net margin of -5.4%. Revenue declined 32.6% year over year. It earns a return on equity of -19.4%. Net debt stands at 3.6B KRW. Fundamentals as of Jul 22, 2026

Our scenario range runs from 667.36 KRW (bear case) to 850.14 KRW (bull case); at 2,045 KRW, the current price sits above that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 68% below its 52-week high and 128% above its 52-week low, currently above its 200-day average. For context, the median of 10 Technology peers we cover trades at -73% fair-value upside, at -64%, 027040 screens cheaper than that median.

Fair Value models

Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.

Widest divergence: Dividend Discount (655.75 KRW) versus Asset-Based (421.21 KRW). Highest evidence: Gordon GGM (70).

Key figures & financial health

Quality Score breakdown

About the company

Seoul Electronics & Telecom Co., Ltd. produces and sells power transformers and switching mode power supply (SMPS) products in South Korea and internationally.

Full company description

Seoul Electronics & Telecom Co., Ltd. produces and sells power transformers and switching mode power supply (SMPS) products in South Korea and internationally. The company offers linear transformers for use in general electronic and electrical devices, as well as in household, communication, and medical purposes; and industrial transformers for industrial equipment, including ships, buildings, factories, and power plants. It also provides troidal transformers used in audio equipment, measuring instruments, and medical equipment; switching transformers for use in high frequency band and power devices; line filter for homes and industrial use; SMPS, a power supply device; and POS and wired/wireless payment terminals, as well as electric components for EVs. In addition, it provides EMS products, such as LED lighting devices, beauty devices, communication modems, humidifiers, home appliances, massagers, and low-frequency therapy devices. The company was formerly known as Seoul Kyeong Jeonki Co., Ltd. and changed its name to Seoul Electronics & Telecom Co., Ltd. in January 1997. Seoul Electronics & Telecom Co., Ltd. was founded in 1983 and is headquartered in Incheon, South Korea.

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

Seoul Electronics & Telecom Co reported revenue of 33.7B KRW in FY2025 versus 69.1B KRW in FY2021, a compound −16.4%/yr. Reported net income was −5.3B KRW in FY2025.

027040 screens 64% overvalued. Compare with Delta Electronics, Inc →

Peer Group

Electronic Components · 625 stocks

How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.

Snowflake

Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.

VALUE 0: the price sits above our fair-value range.

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.

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Frequently asked questions

How we calculate Fair Value

Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.