What are copper stocks

Screening Filters

1. Market Cap ≥ $500,000,000

   • Purpose: Focus on established, mid‑size and larger companies.
   • Rationale: Many well-known copper producers (and diversified miners with significant copper exposure) are mid/large caps. This filter reduces very small, highly speculative miners and explorers, which are common in the metals space but carry much higher risk and less stable copper exposure.

2. Price Between $3 and $150

   • Purpose: Exclude penny stocks and extremely high-priced shares.
   • Rationale: Copper-focused exploration juniors often trade below $3 and can be extremely volatile and illiquid. Setting a floor at $3 targets more established miners or producers. The $150 cap just removes unusually high-priced stocks, which are less common in this sector but keeps the universe focused on more “normal” trading ranges.

3. Monthly Average Dollar Volume ≥ $500,000

   • Purpose: Ensure reasonable liquidity.
   • Rationale: Copper and mining names can include many illiquid microcaps. A minimum dollar volume filter helps make sure that the resulting stocks trade enough value per month that investors can realistically enter and exit positions without excessive slippage.

4. Sector: Basic Materials / Mineral Resources

   • Purpose: Narrow the universe to materials and resource companies.
   • Rationale: Copper producers and copper-related companies are overwhelmingly found in the Basic Materials / Mineral Resources sectors. This avoids unrelated sectors (tech, financials, etc.) and concentrates on companies that actually extract or process metals.

5. Theme: Mining

   • Purpose: Focus specifically on mining-related businesses.
   • Rationale: “Copper stocks” are typically mining companies that produce copper (or have copper as a major byproduct). By using the “Mining” theme, the screener filters for companies whose core business is extracting ores and metals, which is exactly where copper producers sit. While this doesn’t isolate copper alone (it may include gold, iron ore, etc.), it is the correct industry group. Within that, many of the resulting names will be primary or significant copper miners.

Why Results Match:

• Copper stocks are predominantly mining companies in the Basic Materials / Mineral Resources sectors, which is exactly what the sector and theme filters target.
• Market cap, price, and liquidity filters improve investability and quality, shifting the results toward more established and tradable copper producers (and diversified miners with copper exposure), rather than ultra-speculative microcap explorers.