What blue chip

Screening Filters

1. Market Capitalization ≥ $80,000,000,000 (≥ $80B)

   • Purpose: To focus on very large, established companies.
   • Rationale:
     • “Blue‑chip” typically refers to companies that are leaders in their industries, with long operating histories and strong financials.
     • These are almost always large- or mega-cap stocks. Setting a high market cap floor (≥ $80B) filters out mid-cap and smaller firms that are less likely to be considered true blue chips.

2. Index Membership: Component of S&P 500 (GSPC) or Dow Jones Industrial Average (DJI)

   • Purpose: To restrict results to major, widely followed U.S. benchmark indices.
   • Rationale:
     • Most classic “blue-chip” names are part of the S&P 500 or Dow.
     • Inclusion in these indices signals size, stability, and broad institutional interest.
     • This filter helps ensure you’re seeing mainstream, high‑quality companies rather than niche large caps that aren’t generally thought of as blue chips.

3. Return on Equity (ROE) ≥ 10%

   • Purpose: To ensure the companies are efficiently generating profits from shareholders’ equity.
   • Rationale:
     • Blue‑chip companies are not just big; they’re typically consistently profitable and efficient.
     • An ROE of at least 10% is a common threshold for “good” profitability and capital efficiency, suggesting strong business quality and management.

4. Net Margin ≥ 5%

   • Purpose: To filter for companies with solid underlying profitability.
   • Rationale:
     • Net margin measures how much profit remains after all expenses.
     • Requiring ≥ 5% eliminates low-margin or marginally profitable businesses, aligning with the idea that blue chips have durable, healthy earnings and some cushion against downturns.

5. Dividend Yield (TTM) Between 1% and 6%

   • Purpose: To focus on stocks that provide a reasonable, sustainable income stream.
   • Rationale:
     • Many blue‑chip stocks are known for paying regular dividends.
     • A minimum of 1% screens out companies that either pay no dividend or an insignificant one, which is less characteristic of classic blue chips.
     • Capping yield at 6% helps avoid potentially distressed companies with unusually high yields that might be unsustainable, keeping the focus on stable, reliable payers.

Why Results Match “Blue-Chip Stocks”

• The large market cap and index membership criteria capture established, widely recognized leaders—core to the definition of “blue chip.”
• The ROE and net margin filters ensure these are not only big but also high-quality and consistently profitable businesses.
• The dividend yield range aligns with the common expectation that blue chips offer steady, sustainable dividends rather than speculative or distressed payouts.

Taken together, these filters narrow the universe to large, stable, financially strong, widely followed companies that fit the typical investor’s understanding of “blue‑chip stocks.”