Mercury Corporation (100590) fair value: what the stock is really worth
As of Nov 6, 2026: fair value (intrinsic value) of Mercury Corporation stock KRW 6,947, price KRW 3,385, upside +105.2%, quality 49 out of 100. Rating: strongly undervalued. Calculated from audited financials with 10 of our 26 valuation models and 37 quality factors, updated daily.
69 individual criteria per stock, every one traceableSee the method →
Price vs Fair Value
White line = price, green steps = our fair value per fiscal year. As of Nov 9, 2026.
How to read this chart
60‑month range 2,530 KRW – 11,320 KRW · fair‑value band 5,536 KRW – 8,442 KRW · the 3,385 KRW price screens below the 6,947 KRW fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 9, 2026.
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Mercury Corporation manufactures and markets communications equipment and optical fiber cables in Korea. It offers access, TDX exchanger/gateway equipment, transmission/satellite equipment, smart IOT room management system, electric motorcycle, and battery station related products.
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The company was founded in 1983 and is headquartered in Incheon, South Korea. Mercury Corporation operates as a subsidiary of Eyesvision Corp.
Stock analysis
Mercury Corporation (100590) currently trades at 3,385 KRW, while our model-based Fair Value estimate is 6,947 KRW, implying the stock looks roughly 51% undervalued today.
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Valuation
Bull case: the Growth DCF group reads highest at a median of 7,492 KRW per share, and 8 of the 10 models we run sit above the 3,385 KRW price.
Bear case: the Asset-Based group reads lowest at 2,039 KRW, and 2 of the 10 models stay below the price. Data coverage for this calculation is medium.
Scenario range: 5,536 KRW (bear) to 8,442 KRW (bull), the price of 3,385 KRW sits below it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 49/100 (below-average quality), in the Technology sector.
Weak Growth: Revenue growth is weak: less than 2 % a year.
Mercury Corporation reported revenue of 124B KRW in FY2025 versus 122B KRW in FY2021, a compound +0.5%/yr. Reported net income was −2.5B KRW in FY2025.
Key figures
Market cap 57.1B KRW (≈ $42.2M) Micro · P/S ratio 0.60 · EPS (TTM) −333.06 KRW · Net margin −4.5% · Return on equity −4.5% · Return on assets (EBIT) 2.4% (5-year average) · Operating margin 4.4% · Revenue (TTM) 126B KRW.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 19 out of 100 (low confidence).
What moves the price
The share trades about 70% below its 52-week high and 34% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Technology peers we cover trades at −45% fair-value upside, at 105%, 100590 screens cheaper than that median.
Fair Value models
Bear5,536 KRWFair Value 6,947 KRWBull8,442 KRW
Price 3,385 KRW · Upside +105.2%
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above starts from their evidence-weighted blend, not from a single model. In cyclical trough or peak years, after dilution or a stock split it is adjusted afterwards, so it can sit above or below the models.Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. If a model's bull case is above four times its base value, the table shows that limit with a > sign (like the overall Bull above): beyond it no assumption holds.Coverage ⓘCoverage = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card.30/100
Revenue growth is weak: less than 2 % a year.
Revenue growth 1 year
−7.8%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−8.8%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+1.0%
Start year 2020 (pandemic)
Revenue growth 9 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+0.3%
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Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
2.8% (2020) → −0.6% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed
Growth Forecast
Little optimism in the price
The price assumes less growth than the company has delivered so far.
What the price assumes ⓘThis turns our valuation around: instead of asking what the share is worth, it asks what growth the current price requires. It uses the cash the company keeps after all spending (free cash flow), the same discount rate as our models, five years of growth, then slowing evenly to 2 % a year by year ten. Compared with the analysts' sales forecasts extended to the same five years (at least three analysts, for context only, it does not enter the Fair Value): within 3 percentage points counts as "in line" (amber), below that little optimism (green), above that a lot of optimism (red).
−16.9%
The company could shrink this much every year for the next five years and today's price would still be justified.
What forecasts expect
n/a
No analyst forecast available.
Calculated on free cash flow for fiscal year 2025. Over the last twelve months it was negative, so the figure above is uncertain.
After inflation (South Korea: IMF forecast 2.1% a year to 2030, 2.1% from 2016 to 2025) that is about −18.6% a year for the price.
Price, fair value, quality and upside side by side.
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Peer Groupⓘ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.Communication Equipment · 303 stocks
Beats the industry median on 5/11 measures
A mixed picture versus its industry peers.
Valuation
Quality Score49 · Below median
Fair Value upside+105.2% · Top 25%
Profitability
Return on assets−1.4% · Below median
Net margin (12 months)−4.5% · Bottom 25%
Operating margin (12 months)4.4% · Below median
Growth and dividend
Revenue growth (quarter YoY)−6.4% · Bottom 25%
Balance sheet
Debt / equity0.03× · Below median
Valuation Multiplesvs Communication Equipment median · lower = cheaper
For bloggers, editors and developers: paste this into your site or blog (a “Custom HTML” block in WordPress), it shows the current fair value and links back here. Free, plain HTML, and welcome. Full data streams (CSV/JSON) at /developers.
Cite: Fair Value Calculator (2026). "Mercury Corporation Fair Value". https://www.fairvalue-calculator.com/stock/100590
Frequently asked questions
Is Mercury Corporation (100590) overvalued or undervalued?
As of Nov 9, 2026, our model estimates a fair value of 6,947 KRW versus a price of 3,385 KRW, about +105% upside (undervalued).
What is the fair value of 100590?
Our model-based fair value for Mercury Corporation is 6,947 KRW (as of Nov 9, 2026), built from audited fundamentals. The current price: 3,385 KRW.
What is the quality score of 100590?
Mercury Corporation has a Quality Score of 49/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Mercury Corporation (100590)?
Our model-based price target is the fair value of 6,947 KRW (as of Nov 9, 2026) from 10 valuation models. Cautious scenario 5,536 KRW, optimistic scenario 8,442 KRW. It is a calculation from audited fundamentals, not an analyst target.
What is the Mercury Corporation stock forecast for 2026?
Our models put fair value at 6,947 KRW, about +105% upside versus a price of 3,385 KRW (undervalued). Cautious scenario 5,536 KRW, optimistic scenario 8,442 KRW. The calculation is refreshed regularly with new filings.
What is the revenue of Mercury Corporation (100590)?
Mercury Corporation reported trailing-twelve-month revenue of about 126B KRW (latest available figure, as of Nov 9, 2026).
What growth is priced into Mercury Corporation (100590)?
For today's price to be fair in a discounted-cash-flow model, Mercury Corporation would have to grow free cash flow by -16.9 % per year for five years (discount rate 11.6 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +1.0 % per year. Calculated on free cash flow for fiscal year 2025. Over the last twelve months it was negative, so the figure above is uncertain. As of Nov 9, 2026.
What discount rate (WACC) does the fair value of 100590 use?
Our models discount Mercury Corporation at 11.6 %: a base by market capitalisation (micro), damped by beta 0.52, country premium for South Korea. The same rate applies in all 26 models.
What is a reverse DCF?
A reverse DCF turns the usual calculation around. Instead of deriving a value from assumptions, it takes today's price as given and asks: what free-cash-flow growth would a company have to deliver for exactly this price to be fair? The result is not a forecast but the expectation already priced in. For Mercury Corporation that is -16.9 % per year for five years, then slowing evenly to 2 % by year ten, using the same discount rate (11.6 %) and the same formula as our fair value.
How much growth has Mercury Corporation (100590) delivered so far?
Over the past 5 years revenue at Mercury Corporation grew +1.0 % a year. The price currently implies free-cash-flow growth of -16.9 % per year. Comparing the two shows how much confidence is in the price: if it demands more than has been delivered, the business has to accelerate for the maths to work.
How fast is the sector of Mercury Corporation (100590) growing?
The median revenue growth in the sector is +11.5 % a year. That is the yardstick for the growth priced into Mercury Corporation (-16.9 % per year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of Mercury Corporation (100590)?
The free-cash-flow yield on the price is 18.69 % in the last fiscal year (free cash flow was negative over the last twelve months): that much free cash flow Mercury Corporation produces per unit of market value. When it exceeds the discount rate of our models (11.6 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Mercury Corporation (100590)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Mercury Corporation it is 6,947 KRW per share (as of Nov 9, 2026), against a price of 3,385 KRW. It is the blended result of 10 valuation models in 4 families (DCF Models, Multiples, Asset-Based, Growth DCF).
Is Mercury Corporation stock overvalued or undervalued in 2026?
As of Nov 9, 2026, 100590 trades below its calculated fair value: price 3,385 KRW, fair value 6,947 KRW, a gap of about +105% (undervalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of 100590?
No. The price is what the market pays today (3,385 KRW); the fair value is what the company's own numbers justify (6,947 KRW). For Mercury Corporation the two are 3,562 KRW per share apart. That gap is exactly why we show both numbers side by side.
How much is Mercury Corporation worth?
The market values Mercury Corporation at about 57.1B KRW (market capitalisation, as of Nov 9, 2026). Per share that is 3,385 KRW; our models calculate a fair value of 6,947 KRW per share.
What do the bullish and bearish scenarios say about 100590?
Our models span a range for Mercury Corporation: cautious scenario 5,536 KRW, base 6,947 KRW, optimistic 8,442 KRW per share (as of Nov 9, 2026, price 3,385 KRW). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Mercury Corporation (100590)?
Balance-sheet figures for Mercury Corporation (as of Nov 9, 2026): return on equity −4.5%, debt of 0.03 per unit of equity. They feed the Quality Score of 49/100, which measures business quality independently of the share price.
How far is 100590 from its 52-week high?
Mercury Corporation trades at 3,385 KRW, about 70% below its 52-week high of 11,320 KRW and 34% above the low of 2,530 KRW (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of 6,947 KRW is for.
Which stocks are comparable to Mercury Corporation?
From the same area (Technology) we also value Cisco Systems, Inc, Foxconn Industrial Internet Co, Zhongji Innolight Co, Motorola Solutions, Inc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Mercury Corporation stock attractive at the current price?
The data as of Nov 9, 2026: price 3,385 KRW, calculated fair value 6,947 KRW (+105%), Quality Score 49/100, from 10 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of 100590 calculated?
We run Mercury Corporation through 10 models from 4 families: DCF Models, Multiples, Asset-Based, Growth DCF. Every model gets the same audited fundamentals; the fair value of 6,947 KRW builds on their evidence-weighted average, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 13.3% above its aggregate fair value. Mercury Corporation currently trades 51% below its own fair value, and the market average says nothing about that. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Mercury Corporation (100590)?
The closing price on Nov 6, 2026 was 3,385 KRW. Our model-based fair value is 6,947 KRW, about +105% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Mercury Corporation right now?
The large discount to fair value meets weak quality (49/100). That raises the risk this is a value trap rather than a bargain. The price is below even our cautious bear case (5,536 KRW). The market is more pessimistic than our downside scenario.
Key figures of Mercury Corporation
How large is the market capitalisation of Mercury Corporation (100590)?
The market capitalisation of Mercury Corporation is 57.1B KRW (≈ $42.2M). The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Mercury Corporation (100590)?
The price-to-sales ratio of Mercury Corporation is 0.60 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Mercury Corporation (100590)?
Earnings per share at Mercury Corporation are −333.06 KRW. Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Mercury Corporation (100590)?
The net margin of Mercury Corporation is −4.5% (last twelve months). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Mercury Corporation (100590)?
The return on equity (ROE) of Mercury Corporation is −4.5% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Mercury Corporation (100590)?
On an EBIT basis the return on assets of Mercury Corporation is 2.4% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Mercury Corporation (100590)?
The operating margin of Mercury Corporation is 4.4% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Mercury Corporation (100590)?
Revenue at Mercury Corporation is growing −6.4% versus a year earlier (3y avg −8.8%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Mercury Corporation (100590)?
Earnings per share at Mercury Corporation are growing +72.3% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does Mercury Corporation (100590) carry?
The net debt of Mercury Corporation is 7.2B KRW (fiscal year 2023, ≈ 0.7 yrs of FCF). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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Nov 9, 2026