Share Buyback·2026-07-16

Cas decides on treasury stock acquisition

CAS

카스

016920

+0.40

Financial Impact

POSITIVE

Capital Return

Share Buyback

Open market share repurchase

Shareholder Impact

Positive

Historical Market Reaction

Based on n=400 similar Share Buyback events

Historically strongest in Small Cap stocks during Bull Market conditions.

Bull 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

47.4%

stocks positive after 5 days

20D Hit Rate

54.0%

stocks positive after 20 days

Alpha vs Benchmark

(KOSPI / KOSDAQ)

Alpha 5D

+1.0%

trimmed avg vs index

Alpha 20D

-0.4%

median -2.1%

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

20D Return Distribution

Beats market (α > 0)42.5%

Return > +5%38.1%

Return < −10%15.1%

Range (worst / best)-27.7% / +329.2%

Avg entry return (next-open → 5D close)+0.5%

By Market Cap

Large Cap

> ₩1T mktcap

Hit Rate

43.8%/ 56.3%

5D / 20D

Alpha 20D

-0.1%

trimmed avg

n=64

Mid Cap

₩100B–₩1T

Hit Rate

34.1%/ 33.3%

5D / 20D

Alpha 20D

-8.5%

trimmed avg

n=44

Small Cap

< ₩100B mktcap

Hit Rate

50.2%/ 55.8%

5D / 20D

Alpha 20D

+0.7%

trimmed avg

n=289

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

48.1%/ 57.1%

5D / 20D

Alpha 20D

+1.2%

trimmed avg

n=295

Neutral

KOSPI 20D ±5%

Hit Rate

43.8%/ 47.9%

5D / 20D

Alpha 20D

-3.6%

trimmed avg

n=96

By Volatility Regime

(KOSPI 20D rolling std)

High Vol

KOSPI 20D std > 1.2%

Hit Rate

44.9%/ 45.1%

5D / 20D

Alpha 20D

-2.3%

trimmed avg

n=336

Normal Vol

0.6%–1.2%

Hit Rate

60.7%/ 78.4%

5D / 20D

Alpha 20D

+5.3%

trimmed avg

n=61

Avg max drawdown-9.9%

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

Share Buyback Evaluation

Share buyback events are evaluated by assessing capital return size, share supply reduction, execution method, and cancellation intent.

AI is used to interpret disclosures and extract structured data.

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

Buyback size relative to market value
Share count impact
Acquisition period and method
Cancellation or retirement plan

Read our full scoring methodology →

AI Summary

Key Numbers

Risk Factors

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AI-processed analysis. Based on: Material Fact Report (Decision on Treasury Stock Acquisition). Source: Financial Supervisory Service (금융감독원 전자공시시스템). Raw government data is not redistributed. Not investment advice.

Signal Strength

40Bullish

WeakStrong

AI Score: +0.40·Impact: MEDIUM