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KOYJ

121850 · KOSDAQ
₩135-49.06%
2026-09-11 close

KOYJ last closed at ₩135 (-49.06%) on 2026-09-11. Signals today: RSI rebound. Listed on KOSDAQ; price, financials and dividends update daily after market close.

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No active signal.

New high + volume — the real recordrecord · not a prediction

Last 30 sessions
241 picks
Next-day win rate
51%
Avg next-day
+0.05%
vs market
-0.38%p

Every new-high-plus-volume pick we actually published (Korea market) — not this stock alone.

Trade plan

Fill entry, stop, account size and risk percent to get a share count. The stop must sit below the entry.

A calculator · not advice or a guarantee

Financials & valuation at a glance

F
Overall: 디스플레이 76/77 · top 99%
Factor composite · relative position in sector

PER — · PBR 0.07 — own-history percentile 0/100 · 100/100

Open self-history band
PER0/100
PBR100/100

Factual information · not investment advice

Past reported results · not investment advice

More — deeper indicators

Financial safety

Reference indicatorAs of 2024
Distress zoneFinancial-metric reference signal
Altman Z'' zoneZ'' -4.37
Distress
Grey
Safe
The marker shows the current Z'' value within the displayed zones.
Altman Z''
-4.37
Beneish M-Score
-1.54

Statistical manipulation-risk signal

Sloan accrual
4.48%

부실·조작 위험을 나타내는 사실 지표입니다. 투자 조언이 아니며, 검증 전이라 참고용입니다.

Factual information, not investment advice.

Earnings quality · Piotroski F-Score

4/9Moderate

Piotroski measures year-over-year financial improvement, not absolute quality.

Financial improvement score4/9

Profitability

  • Positive ROANot passed
  • Positive OCFNot passed
  • Improving ΔROAPass
  • Accruals (OCF > net income)Not passed

Leverage & liquidity

  • Lower debtNot passed
  • Higher current ratioNot passed
  • No new sharesPass

Efficiency

  • Higher gross marginPass
  • Higher asset turnoverPass

Calculation note: F7(신주)은 equity/asset 유지로 근사

Already-stable companies may score lower when year-over-year improvement is limited.

Factual information, not investment advice.

Forensic signals

Anomaly and structural signals observed in the financial statements.

Revenue qualityDanger

매출 흑자인데 영업CF 적자 (OCF/매출 -19%). 통계적 정황 신호이며 회계부정 단정이 아닙니다.

Factual information, not investment advice.

Industry structure

KRAs of 2026-09-14

디스플레이

This stock is in 디스플레이: revenue rank 71 of 77, share 0%.

71 / 770%revenue share

Who dominates this industry?

  1. 1LG디스플레이62.4%
  2. 2LX세미콘4.4%
  3. 3A0374003%
  4. 4우리바이오2.9%
  5. 5서울반도체2.6%
  6. 6코이즈0%

Concentration

ConcentratedCR3 69.8%
HHI 3,96277 revenue members

HHI and CR3 are separate industrial-organization facts; they are not the polarization verdict.

Polarization

MixedConsistent

Polarization measures industry gaps and structure, not valuation, forecast, or investment advice.

Margin lens

IQR%p
20.28
Direction
확대
Level
넓음
Years
6

Value lens

P90/P10
5.8
Median P/B
0.9
Level
보통
n
70

Survivorship note: 현재 산업 멤버십을 과거 연도에 소급 적용 — 과거 진입·퇴출 기업 미반영(복원 불가)

Factual information, not investment advice.

Risk sensitivity — adverse assumptions

Metric changes under stated assumptions; not a forecast or investment advice.

Base metrics

Operating margin
-15.6%
Interest coverage
-5x
Return on equity (ROE)
-21.6%

Operating margin −5pp

Operating loss
Interest coverageBase -5x adverse case -6.6x
Return on equity (ROE)Base -21.6% adverse case -40%

Revenue −15%

Interest coverage risk
Interest coverageBase -5x adverse case -4.3x
Return on equity (ROE)Base -21.6% adverse case -27.6%

Interest rate +2pp

Interest coverage risk
Interest coverageBase -5x adverse case -3.3x
Return on equity (ROE)Base -21.6% adverse case -34.2%

Interest coverage limit

Already below the limit by 18.7pp

Interest coverage limit at an operating margin of 3.1%

Interest expense coverage threshold

Connections

AI-extracted related companies · for reference

Customers
삼성전자LG디스플레이삼성디스플레이삼성전기LG전자BOE Technology GroupTCL CSOTAUOInnolux
Competitors
SKCPI첨단소재솔브레인동진쎄미켐코오롱인더스트리
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Recent filings

KOYJ's latest filings on Korea's DART. Open a headline for a reference summary and the original.

Source: DART (Korea electronic disclosure)

About KOYJ
What technical signals does KOYJ (121850) have?
KOYJ current technical signals: no active technical signal.
Is KOYJ a cup-and-handle pattern?
No. KOYJ has no valid cup-and-handle signal right now.
What are KOYJ's financials and valuation?
KOYJ's income statement, balance sheet and cash flow are free for the most recent 8 years; the full history is on Pro. PER/PBR, dividend yield and sector valuation bands are free.

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