Top 15 S&amp;P 500 companies ranked by Revenue

1 Walmart $WMT
2 Amazon $AMZN
3 Apple $AAPL
4 $CVS
5 Exxon $XOM
6 UnitedHealth $UNH
7 Berkshire $BRK
8 McKesson $MCK
9 AmerisourceBergen $ABC
10 AT&amp;T $T
11 Google $GOOG
12 Costco $COST
13 Cigna $CI
14 Cardinal Health $CAH
15 Ford $F https://t.co/X7E4F9A6Rv