With market cap over 1 billion

Screening Filters

1. market_cap: { min: 1,000,000,000 }

   • Purpose: Restrict results to companies with a market capitalization over $1 billion.
   • Rationale:
     • You explicitly asked for “a market cap over 1 billion,” so this filter enforces that minimum size.
     • Using a market-cap threshold avoids tiny, illiquid microcaps that can have erratic P/E ratios and higher risk.
     • It focuses the list on larger, more established companies where P/E comparisons are more meaningful.

2. region: ["United States"]

   • Purpose: Limit results to companies classified as U.S. stocks.
   • Rationale:
     • You asked for “US stocks,” so this ensures we do not include foreign-listed companies.
     • Region-based filtering is the standard way data providers categorize the company’s primary country of risk/operation, aligning with what most investors mean by “US stock.”

3. list_exchange: ["XNYS", "XNAS", "XASE"]

   • Purpose: Include only stocks listed on major U.S. exchanges:
     • XNYS = NYSE
     • XNAS = NASDAQ
     • XASE = NYSE American (formerly AMEX)
   • Rationale:
     • This further refines “US stocks” to those traded on the main U.S. exchanges, improving liquidity and data quality.
     • It avoids OTC and pink-sheet names, which can have unreliable financials and distorted P/E ratios.

4. pe_ttm: { min: 0 }

   • Purpose: Ensure the P/E ratio (trailing twelve months) is non‑negative.
   • Rationale:
     • To find “stocks with the lowest P/E ratio,” we need valid, comparable P/E values.
     • Companies with negative earnings have a negative or “not meaningful” P/E, which makes ranking by “lowest P/E” misleading (since a deeply unprofitable company can show a very large negative P/E).
     • Setting min: 0 focuses on profitable companies and then allows us to sort those by P/E from low to high, which is typically what investors mean when they ask for low P/E stocks.

Why Results Match:

• Your request:
  • “US stocks” → handled by region: ["United States"] and list_exchange set to the main U.S. exchanges.
  • “with the lowest P/E ratio” → handled by requiring a valid (non‑negative) pe_ttm and then sorting ascending by P/E (sorting step, while not shown in the filter dictionary, is implied and is how we rank “lowest”).
  • “market cap over 1 billion” → directly implemented via market_cap: { min: 1,000,000,000 }.
  • “Find 10” → the screener would then take the first 10 names from the sorted list.

All requested indicators (market cap, U.S. listing, and P/E ratio) are supported, and the filters applied are directly aligned with your criteria, giving you the 10 largest, major‑exchange U.S. stocks with the lowest positive trailing P/E ratios.