Jiangsu JieJie Microelectronics Co (300623) Fair Value & Analysis

Technology · CN · Market cap 30.0B CNY

A solid business, but screening 57% overvalued on our models.

What matters now

• The price sits above even our optimistic bull case (¥14.32). The favourable scenario is already priced in.
• Solid but not exceptional quality (51/100) and above fair value, neither a clear bargain nor a standout compounder.
• A fairly wide model range (¥6.15 to ¥14.32) leaves room in how you read the outcome.

Price vs Fair Value (5 years)

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 9, 2026.

How to read this chart

60‑month range ¥10.66 – ¥46.62 · fair‑value band ¥6.15 – ¥14.32 · the ¥26.41 price screens above the ¥11.46 fair value. Dashed = 300-day average. As of Jul 9, 2026.

Full chart & analysis →

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Analysis

Jiangsu JieJie Microelectronics Co (300623) currently trades at ¥26.41, while our model-based Fair Value estimate is ¥11.46, implying the stock looks roughly 56.6% overvalued today. The Quality Score stands at 51/100 (solid 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: high).

Over the trailing twelve months, Jiangsu JieJie Microelectronics Co generated revenue of 3.7B CNY at a net margin of 12.5%. Revenue grew 31.4% year over year. It earns a return on equity of 7.6%. Net debt stands at 334M CNY. Fundamentals as of Jul 9, 2026

Our scenario range runs from ¥6.15 (bear case) to ¥14.32 (bull case); at ¥26.41, 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 32% below its 52-week high and 2% above its 52-week low, currently below its 200-day average. For context, the median of 10 Technology peers we cover trades at -75% fair-value upside, at -57%, 300623 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: Growth Earnings (¥19.18) versus Growth DCF (¥3.24). Highest evidence: Growth DCF (80).

Key figures & financial health

Quality Score breakdown

About the company

Jiangsu JieJie Microelectronics Co., Ltd. engages in the research and development, design, production, and sale of power semiconductor chips and devices in China and internationally.

Full company description

Jiangsu JieJie Microelectronics Co., Ltd. engages in the research and development, design, production, and sale of power semiconductor chips and devices in China and internationally. It offers uni-directional and bi-directional thyristors; transient voltage and thyristor surge suppresso, TVS diode array, sidac, zener and small switching diodes, small signal transistor, varistor, and ceramic gas discharge tube; and automotive, low and medium-voltage, and high-voltage MOSFETs. The company also provides rectifier diodes and bridge rectifier; power modules and components; opto-coupler; power IC; and IGBT products. Its products are used in fast charger, electric vehicle charging, switched-mode power supply, BLDC and PMSM motor drive, photovoltaic inverter, air conditioners, washing machine, leakage protective devices, automotive electronics, consumer electronics, and battery management system applications. The company was founded in 1995 and is headquartered in Qidong, China.

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

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

Jiangsu JieJie Microelectronics Co reported revenue of ¥3.5B in FY2025 versus ¥1.8B in FY2021, a compound +18.5%/yr. Reported net income was ¥477M in FY2025, compounding −1.0%/yr from FY2021.

300623 screens 57% overvalued. Compare with ASML Holding →

Peer Group

Semiconductor Equipment & Materials · 211 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.

Valuation Multiples vs Semiconductor Equipment & Materials median · lower = cheaper

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.