Undervalued Stock Screening Basics: Cheap ≠ Going Up, but Margin Starts Here

Lesson 5 of the Fund Strategy knowledge supplement. Maps to the email’s ”🔍 Undervalued Quality Scan (A-share + HK)” section.

“Is this stock cheap, can I buy it?” — first learn what “cheap” means professionally.

1. What is “undervalued”?

Undervalued = price well below intrinsic value or its historical fair range. Four rulers:

• PE / PB percentile: where current valuation sits vs the past 5 years; < 30% is low;
• 52-week range: price in the lowest 20% of the year → deep pullback;
• Dividend yield: high and sustainable is a “mis-sold” signal;
• PEG: PE ÷ earnings growth; < 1 means growth absorbs the valuation.

2. Three conditions for quantitative screening

The email’s “undervalued scan” runs this logic:

1. Low valuation: low percentile, low price;
2. High quality: high ROE, low debt, strong cash flow (avoid “cheap junk”);
3. Catalyst: earnings inflection, policy tailwind, sector recovery.

All three hit → enters watch / buy-point tracking.

3. Value trap: cheap for a reason

Low valuation ≠ going up tomorrow. Common traps:

• Permanently declining industry (replaced tech);
• Accounting fraud or hidden debt;
• Unsustainable payout — high yield is a price crash “passively inflated”.

So “undervalued” is the start of a margin of safety, not a buy signal.

4. How to use it right

• Undervalued → set a position cap (don’t go all-in);
• Scale in batches, letting time confirm “is it truly cheap”;
• Wait for mean-reversion to pay off, not for tomorrow’s pop;
• With stop discipline: if the thesis is falsified (earnings keep deteriorating), exit.

5. Where it fits our system

The undervalued scan is the opportunity-discovery layer: it tells you “where might be cheap”; actual buys are executed by DCA discipline + grid + high-dividend ballast. In the next panic dip, this section helps you lock mis-sold names early.

⚠️ This article is a framework illustration and not investment or trading advice. Markets are risky; decide with care.