What is the KRX Factor Screener?

A free Korean equity screener that filters every KOSPI and KOSDAQ name by classic factors — PER, PBR, ROE, dividend yield — and assigns an AI-driven letter grade from S to D. Stack value indicators that Buffett favours alongside momentum factors used in quant strategies, all in one view.

Presets surface value, dividend, growth, and low-PBR baskets immediately, and you can combine factors to build a custom universe.

Available factors

Value

PER, PBR, PSR, dividend yield — for undervalued candidates.

Quality

ROE, ROA, debt ratio, operating margin — for financial health.

Momentum / size

3- and 6-month returns, market cap — for trend or size filters.

How the AI grade is calculated

Each factor is normalized, then combined into a 0–100 composite. Grades are relative within the KOSPI/KOSDAQ universe at the time of calculation: S (top 5%), A (15%), B (35%), C (35%), D (10%). Grades refresh daily after KRX data updates.

Data sources

Who is this for?

FAQ

Should I buy every S-grade stock?

No — the score reflects factors only. Industry cycles, governance, and news are not in the model. Treat the grade as a starting point.

How often does the grade change?

Daily after market close. Expect bigger shifts in earnings season as financial statements refresh.

Can I save a watchlist?

Yes — sign in and manage it under Watchlist.

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