Yes us stocks

Screening Filters

1. Market Cap ≥ $20,000,000,000 (Large Caps Only)

   • Purpose: Focus on large, established U.S. companies.
   • Rationale:
     • When someone asks for “good stocks to buy” in a short window like one month, large caps are often preferred because they tend to be more stable, widely followed, and less prone to extreme, random moves than small caps.
     • This filter removes very small or speculative companies and keeps the universe to more reliable, blue‑chip or near blue‑chip names.

2. PriceAboveMA20 (Price above 20‑day Moving Average)

   • Purpose: Select stocks in a short‑term uptrend or with positive recent momentum.
   • Rationale:
     • A 20‑day moving average is roughly one trading month. Price trading above this level often indicates the stock is in a short‑term bullish phase.
     • For a one‑month investment horizon, near‑term trend matters more than long‑term fundamentals alone; this filter tilts toward names already showing strength rather than those still in downtrends.

3. is_index_component: GSPC (S&P 500 Members Only)

   • Purpose: Limit candidates to U.S. large‑cap stocks in the S&P 500 index.
   • Rationale:
     • You asked about “US stocks”; the S&P 500 is the core large‑cap U.S. equity benchmark.
     • These companies are generally more liquid, more scrutinized by analysts, and have stricter inclusion criteria, which aligns with a practical “good stocks” universe rather than highly speculative names.

4. one_month_rise_prob ≥ 70%

   • Purpose: Prefer stocks with a historically or model‑estimated higher probability of rising over the next month.
   • Rationale:
     • We cannot guarantee what will happen in a month, but we can tilt toward situations where models (based on historical patterns, volatility, momentum, etc.) suggest better odds of a positive return.
     • A 70% minimum tries to filter out names with coin‑flip‑like odds and focus on those with more favorable risk/reward profiles for a one‑month horizon.

5. one_month_predict_return ≥ 5%

   • Purpose: Target stocks with an expected gain that is meaningfully positive (at least +5%) over the next month.
   • Rationale:
     • You’re looking for “good stocks to buy in one month,” which usually implies not just a higher chance of going up, but also a meaningful potential gain if they do.
     • This filter avoids names that might have a high probability of only very small gains, and instead focuses on those with both positive odds and a worthwhile expected return.

Why Results Match Your Request

• The timeframe (“in one month”) is addressed by:

  • Using a 20‑day MA (roughly one month of trading) to capture current short‑term trends.
  • Applying one‑month rise probability and one‑month predicted return filters to specifically target the next month’s behavior, not just long‑term potential.

• The “good US stocks” aspect is handled by:

  • Restricting to S&P 500 U.S. large caps (GSPC + market cap ≥ $20B), giving you well‑known, relatively stable, and liquid names rather than speculative microcaps.

Together, these filters don’t guarantee winners, but they systematically narrow the universe to large, U.S. index constituents that are currently in an uptrend and have a model‑estimated higher probability and magnitude of positive performance over the next month.