The entire U.S. stock market is currently valued at around $53.9 trillion. That’s all the companies on the NYSE, Nasdaq and OTC markets combined.  During the 2008 global financial crisis, the whole stock market was valued at just $11.4 trillion. The market capitalization is up almost five times in 13 years. The U.S. stock market is tremendously large, accounting for 55.9% of the entire world’s…