A 60/40 mix between stocks and bonds has historically been a rule of thumb for investors wishing to mute some of the volatility of equities. The traditional 60/
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S&P 500 (SPY) 60対 Barclays U.S. Aggregate (AGG) 40で投資するより、 S&P 500 Low Volatility Index (SPLV) 80 対 Barclays U.S. Aggregate (AGG) 20で投資するほうがいいという話。