But analysts at Barclays Capital note that swap dealers still accounted for just 6.4% of total options and futures contracts, not enough to drive prices up on their own.

• 然而，英国巴克莱银行的分析家观察到，调换交易商仍然只占期权及期货合约总数的6.；4%25，尚不足以凭一己之力抬高物价。