Most stable etc

Screening Filters

1. names: ['Invesco']

   • Purpose: Limit results strictly to ETFs issued by Invesco.
   • Rationale: You explicitly asked for an “Invesco ETF,” so this ensures we only see products from that provider and ignore all other issuers.

2. themes: ['Total Bond Market', 'Government Bonds', 'Corporate Bonds', 'Inflation-Protected Bonds']

   • Purpose: Focus on Invesco bond ETFs rather than stock (equity) ETFs.
   • Rationale: When investors say “most stable” they usually mean:
     • Lower volatility than equities
     • Less sensitivity to stock market drawdowns
       Bond ETFs—especially those tied to government, investment‑grade corporate, total bond markets, or inflation-protected bonds—tend to be more stable than equity ETFs over time. Filtering to these themes steers the search toward the lower-risk end of the Invesco product lineup.

3. bond_position_pct: ['MoreThan90Pct']

   • Purpose: Require that at least 90% of the ETF’s holdings are bonds.
   • Rationale: Some “mixed” funds hold meaningful amounts of stocks, commodities, or derivatives that add volatility. This filter ensures we are essentially getting pure bond funds, which better fit a “most stable” objective.

4. expense_ratio: {'max': '0.30'}

   • Purpose: Exclude higher-fee ETFs and keep only those with relatively low costs.
   • Rationale: Lower expense ratios:
     • Reduce performance drag over time
     • Are typical of broad, plain-vanilla, and usually more stable products
       While fee level doesn’t directly change volatility, low-cost, core bond ETFs are often the ones used as stable building blocks in portfolios.

5. inception_date: {'max': '2010-01-01'}

   • Purpose: Include only ETFs launched on or before 2010.
   • Rationale: A longer track record helps judge how “stable” an ETF has been through different market environments (e.g., rate cycles, crises). Older funds:
     • Have more historical data on volatility and drawdowns
     • Are typically larger and more established, which can mean better liquidity and more predictable behavior

Why Results Match “Most Stable Invesco ETF”

• By restricting to Invesco bond ETFs with >90% in bonds, the screen focuses on lower-volatility products relative to equities.
• Using core bond themes (government, investment-grade corporate, total bond, and TIPS) targets segments commonly used as capital-preservation or stability anchors in portfolios.
• Imposing a low expense ratio cap and a long minimum history favors established, core, and generally more conservative ETFs rather than niche or speculative strategies.

Together, these filters narrow the universe toward Invesco ETFs that are most likely to exhibit the kind of stability you’re looking for.