*** “Broad US Markets” is the Value Line Geometric Index. “The Value Line Geometric Composite Index is the original index released, and launched on June 30, 1961. It is an equally weighted index using a geometric average. Because it is based on a geometric average the daily change is closest to the median stock price change.” – Wikipedia. (By definition, due to it’s broadly diversified and equally weighted composition it represents what your “Average Investors Portfolio Performance” would be).