HHI helps assess market competitiveness by calculating company market shares. A HHI below 1500 indicates a competitive market, above 2500 suggests concentration. Use HHI to guide investment decisions, ...

VIX measures expected S&P 500 volatility, aiding short-term market outlooks. VIX surges hint at investor anxiety, predicting possible market drops. Though insightful, VIX often overestimates actual ...