Data from ETFGI shows that $ 81.9bn went into fixed income ETFs in 2014 . The opinions and forecasts expressed herein are solely those of Tom Lydon, and may not actually come to pass. John McCollum , an analyst at Greenwich Bank , told the BBC that trading volume in the five largest bond ETFs have risen much faster than their asset growth since 2008 , and that intraday liquidity has been an important factor for investors who want to quickly weave in and out of the market . However , the Bank of International Settlements has warned that investors may find it difficult to liquidate their ETF holdings in a steep overnight sell - off .
Data from ETFGI shows that $ 81.9bn went into fixed income ETFs in 2014 . John McCollum , an analyst at Greenwich Bank , told the BBC that trading volume in the five largest bond ETFs have risen much faster than their asset growth since 2008 , and that intraday liquidity has been an important factor for investors who want to quickly weave in and out of the market . However , the Bank of International Settlements has warned that investors may find it difficult to liquidate their ETF holdings in a steep overnight sell - off .