The total market capitalization of the six largest technology stocks plus Berkshire Hathaway equals $9.0 trillion, about 28% of the total capitalization of the S&P 500 ($32 trillion).

(1) Apple ($2.07 trillion) —              -7.3%

(2) Microsoft ($1.83 trillion) —       +9.0%

(3) Amazon ($1.57 trillion) —           -3.0%

(4) Alphabet ($1.45 trillion) —        +21.5%

(5) Facebook ($852 billion) —           +9.3%

(6) Tesla ($627 billion) —                    -6.2%

(7) Berkshire Hathaway ($597 billion)  — +12.2%

U.S. Stock Indexes:

S&P 500 —      +7.0%

DJIA     —            +8.3%

Nasdaq  —         +4.6%