The SPDR S&amp;P 500 ETF $SPY is one of the most heavily traded securities in the market. Below is some info about $SPY showing the top 10 holdings which includes the likes of Microsoft $MSFT Apple $AAPL $AMZN $GOOG $FB $JNJ $V $PG which make up about 26.54% of the total portfolio https://t.co/YpFLg8bvUR