Facebook, Apple, Amazon, Netflix, Google, and Microsoft -- the FAANGM stocks -- were the runaway leaders of the new bull market that began after the Standard & Poor’s 500 bottomed on March 23, but now the rally has broadened. It’s good news.

The S&P 500 is a capitalization-weighted index, which makes the companies with the largest market capitalization more influential in the value of the index of the 500 companies. Over the 12 months ended Dec. 7, the widely-quoted S&P 500 index significantly beat the index of the 500 companies equally-weighted. Recently, that changed. The equal weighted index of the S&P 500 has trounced the market-cap weighted index since the election.