A wave of AI uncertainty and valuation concerns have stopped this highflier in its tracks, but blistering gains could be on the horizon.The Dow Jones Industrial Average is the oldest stock market index in the U.S. This price-weighted index tracks the performance of 30 of the largest publicly traded companies in the country. Its constituent companies span a variety of industries and sectors, and it's considered by many to be a dependable indicator for the health of the economy and of stock market performance ...