The index only delivered back-to-back annual returns of at least 25% on one other occasion since it was established in 1957. It soared by 33% in 1997 and then by 29% in 1998, fueled by the dot-com ...

True, Amazon's top line isn't growing as fast as Nvidia's. In the third quarter, Amazon's revenue increased 11% year over year to $158.9 billion. The company's net income of $15.3 billion was up 54.5% ...

That adds up to roughly 36% of the broader market. This is also after a 4% or so sell-off in the last few weeks of December. The concentration in the Fateful Eight could make your S&P 500 position ...