Agg Mutual Funds Issuer NameTickerAUM ($ Billions)Expense Ratio (%) VanguardVBTLX$3200.05% FidelityFXNAX$56.70.025% SchwabSWAGX$4.90.04% Source: Morningstar What Happened to the Barclays Aggregate Bond Index? In August 2016, Bloomberg L.P. acquired the index as part of a larger purchase of...