CAN SLIM Stock Screener
William O'Neil's systematic 7-factor method, automated.
What is CAN SLIM?
CAN SLIM is a stock selection method created by William O'Neil, who famously turned a small starting investment into significant returns in just 18 months.
His method picks stocks using 7 specific factors. Each letter stands for one factor. A stock either passes or fails each check, giving it a score from 0 to 7.
The 7 Factors
Current Earnings
Quarterly earnings growth of 25% or more. Is the company making more money right now than it did last year at this time?
Annual Earnings
Three or more years of consistent annual earnings growth. One good quarter is not enough. You want a track record.
New Highs
Stock trading near its 52-week high. Counterintuitively, stocks making new highs tend to go even higher. Momentum matters.
Supply & Demand
Strong volume with limited shares available. When demand outpaces supply, prices historically drift higher — a factor CANSLIM measures, not a prediction.
Leader (Sector Strength)
The stock's 1-month return outperforms its sector ETF (e.g. XLK for Technology, XLV for Healthcare) or the KOSPI/KOSDAQ index for Korean names. Information only; not a buy/sell signal.
Institutional Interest
Observes institutional flow — mutual fund and hedge fund position changes in the name. Descriptive factor only; not a signal to act.
Market Direction
The overall market is in an uptrend. Even the best stock struggles when the whole market is falling.
Rating System
Each stock scores 0 to 7 based on how many factors it passes. Higher means a stronger candidate.
All systems go. The stock passes nearly every check.
Some concerns. Worth watching, but do more research.
Significant risks. Multiple warning signs present.
Too many red flags. The data says stay away for now.
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