The top-10 market cap weights in the S&P 500 comprise 23.6% of the index.
According to Morningstar, here is the SPY's top-10 list by market cap as of 12/12/19:
1.) Apple (NASDAQ:AAPL): 4.47%
2.) Microsoft (NASDAQ:MSFT): 4.46%
3.) Amazon.com (NASDAQ:AMZN): 2.76%
4.) Facebook (NASDAQ:FB): 1.79%
5.) Berkshire Hathaway (NYSE:BRKa): 1.67%
6.) JPMorgan Chase (NYSE:JPM): 1.65%
7.) Alphabet (NASDAQ:GOOGL): 3.03%
8) Johnson & Johnson (NYSE:JNJ): 1.41%
9.) Visa (NYSE:V): 1.21%
10.) Procter & Gamble (NYSE:PG): 1.18%
(Ranking as of 12/16/19 at close of trading per Morningstar.)
The only stock not on the spreadsheet above is Procter & Gamble (PG) which has worked it’s way up from the “teens” to the 10th position. (Long all in some form or fashion except Procter.)
Apologies to readers – this hasnt been updated in 6 months.
The next update for 2020 numbers will happen late January, early February, ’20 after the “big 10” have reported Q4 ’19 results and have given 2020 guidance.
Thanks for reading.