What is the number one earner today?

Screening Filters

1. list_exchange: ['XNYS', 'XNAS', 'XASE']

   • Purpose: Limit results to major U.S. stock exchanges (NYSE, NASDAQ, NYSE American).
   • Rationale: You asked for the “number one earner in the US stock market today.” Focusing on primary U.S. exchanges ensures we’re looking at the core U.S. equity market, not OTC, pink sheets, or foreign exchanges, which might not match what most investors mean by “US stock market.”

2. market_cap: {'min': '10000000000'} (≥ $10B)

   • Purpose: Restrict to large-cap companies.
   • Rationale: The absolute “#1 earner” by % move could easily be a tiny, illiquid penny stock subject to hype or manipulation. A $10B+ market cap filter helps ensure we’re looking at substantial, established companies where a big daily gain is more meaningful and less random.

3. price: {'min': '5'} (≥ $5/share)

   • Purpose: Exclude very low‑priced and penny stocks.
   • Rationale: Stocks under $5 are often highly speculative and volatile. Filtering them out removes a lot of noise and extreme outliers that might dominate the “top gainer” list but aren’t what most people consider when asking for the top “earner” in the market.

4. volume: {'min': '2000000'} (≥ 2M shares traded today)

   • Purpose: Ensure high liquidity and active trading.
   • Rationale: A “top earner” should be widely traded, not a thinly traded stock that jumped on a handful of shares. Requiring at least 2M shares in volume focuses on names where the price move reflects broad market participation.

5. price_change_pct: {'min': '5'} (≥ +5% today)

   • Purpose: Capture stocks with significant positive price performance today.
   • Rationale: “Number one earner” is naturally interpreted as top daily gainer. A minimum +5% move sets a meaningful threshold so we’re only considering stocks that actually had a strong positive day. Among those, you’d then sort by % change to find the single biggest gainer.

Why Results Match

• The exchange filter keeps us strictly in the core U.S. stock market you asked about.
• Market cap, price, and volume filters remove tiny, illiquid, or very low‑priced stocks that could distort the idea of “top earner,” focusing instead on major, actively traded names.
• The price change filter directly targets strong positive performers today, so when we sort those by % gain, the top result is a sensible candidate for the “number one earner in the US stock market today” under realistic, investor‑relevant conditions.