Portfolio Analysis In R | A 60/40 US Stock/Bond Portfolio By: TalkMarkets January 19, 2015 at 11:03 AM EST As a brief illustration, let’s kick the tires on a simple 60%/40% US stock/bond strategy with a couple of ETFs. Read More >> Related Stocks: SPDR S&P 500 ETF Trust US Aggregate Bond Ishares Core ETF