Amazon, Netflix and Microsoft together this year are responsible for 71 percent of S&P 500 returns and for 78 percent of Nasdaq 100 returns.
Amazon, Netflix and Microsoft together this year are responsible for 71 percent of S&P 500 returns and for 78 percent of Nasdaq 100 returns.
The three stocks make up 35 percent, 21 percent and 15 percent of S&P 500 returns, respectively, while making up 41 percent, 21 percent and 15 percent of Nasdaq 100 returns.
Apple also makes up a large portion of both indices, contributing 12 percent of both S&P 500 and Nasdaq 100 returns, while Alphabet and Facebook contributed 8 percent to each, as well.
In total for 2018, the six stocks make up 98 percent of S&P 500 returns and 105 percent of Nasdaq 100 returns.
The S&P 500 is up 4.4 percent for 2018 while the Nasdaq-100 is up almost 14 percent.
– CNBC’s Robert Hum contributed to this report.

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