The largest 5 stocks by market capitalization are substantially outperforming the S&P 500 and the Dow Jones Industrial Average (DJIA) Year-To-Date (YTD) as of July 2, 2020. The total market capitalization of these 5 technology stocks equals $6.2 trillion, about 22% of the total capitalization of the S&P 500 ($28 trillion).

(1) Apple (AAPL) ($1.58 trillion) —  +23.9% YTD

(2) Microsoft (MSFT) ($1.56 trillion) — +30.8%

(3) Amazon (AMZN) ($1.44 trillion) —   +56.4%

(4) Google (GOOGL) ($1.00 trillion) —  +9.8%

(5) Facebook (FB) ($666 billion) —  +13.7%

Also,

Netflix (NFLX) ($210 billion) —  +47.4%

S&P 500 —  -3.1%

DJIA     —  -9.5%

Nasdaq  —  +13.8%

Berkshire Hathaway ($433 billion)  —  -21.2%