Fortune 500 contains privately held companies I don't have the opportunity to invest in. Wikipedia points out the first list "limited to companies whose revenue

Fortune 500 contains privately held companies I don't have the opportunity to invest in. Wikipedia points out the first list "limited to companies whose revenues were derived from manufacturing, mining, and energy exploration" so it makes a little more sense that only 10 percent are still on it. In contrast, VOO is SP500, which is entirely publicly traded and features weightings