Part 2/9:
Unfortunately for Rob—and many investors—there is no definitive answer. Academic studies and expert opinions vary greatly on this topic. Some early studies, including those by investment pioneers like Benjamin Graham, suggested a holding of 10 to 30 stocks. Other research has argued for the benefits of owning as few as 8 to 18. However, these findings have evolved, and many experts now propose that a larger portfolio of 100 or even 300 stocks may be necessary for proper diversification.