Five stocks now weigh as much in the S&P 500 as 434 others combined.

At the dot-com peak in 2000 it took 350.

In 2013 and 2014 it took about 200.

The top five are worth close to $22 trillion, ~30% of the index.

An S&P 500 index fund is now a bigger bet on a few tech giants than it was in 2000.

Data: Goldman Sachs