Exclude ETFs, especially leveraged and inverse ETFs (or both) and pink sheet stocks in determining the VVC price and other factors
Leveraged ETFs skew the results of the VVC price by magnifying price movements, and inverse ETFs tend to run counter to the market trend. Even normal ETFs that track the market should not be included, since the stocks they contain may be duplicated from individual stocks already in the database. Also, stocks listed in the pink sheets should be excluded since they typically move independent of the market (esp. due to low liquidity).