Bonds' Liquidity Threat Is Revealed in Derivatives Explosion

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The shift reflects an unintended consequence wrought by central banks, which have dropped interest rates close to zero and implemented policies such as buying debt to restore demand in economies crippled by the financial crisis. Inefficiencies in the $100 trillion market for bonds may make investors more vulnerable to losses when yields rise from historical lows.

"Liquidity is becoming a serious issue," Grant Peterkin, a money manager at Lombard Odier, which oversees $48 billion, said in a June 11 telephone interview from Geneva. The worry is that when investors try to exit their positions, "there may be some kind of squeeze."

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As bond trading has slumped, the notional value of over-the-counter contracts soared fivefold in the past decade to a record $710 trillion, based on the latest data from the Bank for International Settlements compiled by Deutsche Bank AG.