Last year, Facebook Inc (NASDAQ:FB), Amazon.com, Inc. (NASDAQ:AMZN), Apple Inc (NASDAQ:AAPL), Netflix (NASDAQ:NFLX), and Google (owned by parent company Alphabet), collectively known as the FAANGs, smashed the S&P 500 in performance terms.
Indeed, according to figures from Goldman Sachs, for 2017 the S&P 500 returned 21.8% while the FAANGs gained 46.5% and the FAAMG's (including Microsoft) gained 45%. The tech sector as a whole added 38.8%.
[munger]

These gains have had a disproportionate impact on the rest of the market. Analysis by Fortune shows that at the start of 2017, FAAMG Inc's total market cap was $2.09 trillion, and it accounted for...

