Earnings Release·2026-07-03

Seohan Annual Report Amendment (2025.12)

SEO

서한

011370

+0.00

Financial Impact

NEUTRAL

Historical Market Reaction

Based on n=3,761 similar Earnings Release events

Historically strongest in Large Cap stocks during Bull Market conditions.

Large-cap favorableBull market biasAvoid high volatility

Grade C

How we grade signals

Score = risk-adjusted return (median 5D ÷ volatility, Sharpe-style), scaled by sample confidence (n/300, max 40% boost).

A ≥ 75Strong positive signalB 60–74Moderate positive signalC 45–59Neutral / inconclusiveD 30–44Weak or mixed signalF < 30Negative signal

Grade reflects risk-adjusted consistency, not absolute return size. A lower-return but stable event type may outgrade a high-variance one.

Hit Rate

5D Hit Rate

43.0%

stocks positive after 5 days

20D Hit Rate

57.9%

stocks positive after 20 days

Alpha vs Benchmark

(KOSPI / KOSDAQ)

Alpha 5D

+0.2%

trimmed avg vs index

Alpha 20D

-2.3%

median -3.6%

Trimmed alpha excludes extreme outlier events (top/bottom 5%) to better represent typical market behavior.

20D Return Distribution

Beats market (α > 0)38.2%

Return > +5%40.9%

Return < −10%11.5%

Range (worst / best)-91.1% / +466.2%

Avg entry return (next-open → 5D close)-0.7%

By Market Cap

Large Cap

> ₩1T mktcap

Hit Rate

48.9%/ 67.3%

5D / 20D

Alpha 20D

+1.5%

trimmed avg

n=640

Mid Cap

₩100B–₩1T

Hit Rate

42.7%/ 53.6%

5D / 20D

Alpha 20D

-3.0%

trimmed avg

n=328

Small Cap

< ₩100B mktcap

Hit Rate

41.6%/ 56.5%

5D / 20D

Alpha 20D

-3.1%

trimmed avg

n=2,642

Market cap buckets: Large > ₩1T · Mid ₩100B–₩1T · Small < ₩100B (at time of filing). Min. 30 events per bucket shown.

By Market Regime

(KOSPI 20D prior trend)

Bull Market

KOSPI 20D > +5%

Hit Rate

43.0%/ 57.0%

5D / 20D

Alpha 20D

-0.8%

trimmed avg

n=2,742

Neutral

KOSPI 20D ±5%

Hit Rate

43.0%/ 59.6%

5D / 20D

Alpha 20D

-5.1%

trimmed avg

n=887

By Volatility Regime

(KOSPI 20D rolling std)

High Vol

KOSPI 20D std > 1.2%

Hit Rate

40.6%/ 54.1%

5D / 20D

Alpha 20D

-2.7%

trimmed avg

n=3,074

Normal Vol

0.6%–1.2%

Hit Rate

56.9%/ 78.0%

5D / 20D

Alpha 20D

-0.6%

trimmed avg

n=536

Avg max drawdown-11.4%

Based on DART filings since Jan 2025. Past market reactions do not guarantee future results.

Signal grade: risk-adjusted return (median 5D ÷ vol, Sharpe-style) × sample confidence — A≥75 / B≥60 / C≥45 / D≥30. Click the grade badge for details.

How This Event Is Evaluated

Earnings Evaluation

Earnings events are evaluated by comparing profitability, growth, margin direction, and one-off factors against market expectations.

AI is used to interpret disclosures and extract structured data.

Signal scores are generated using event-specific methodologies and quantitative models.

Revenue and profit growth
Operating margin direction
Net income quality
One-off gains or losses

Read our full scoring methodology →

AI Summary

Key Numbers

Risk Factors

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AI-processed analysis. Based on: [Amendment] Annual Report (2025.12). Source: Financial Supervisory Service (금융감독원 전자공시시스템). Raw government data is not redistributed. Not investment advice.

Signal Strength

0Neutral

WeakStrong

AI Score: +0.00·Impact: LOW