Based on Thursday’s closing price for the front month contract, the notional trading value for the index totalled $52.7 billion for May (over 21 trading days).
The bourse’s dollar index, the most popular index of its kind, measures the USD against a basket of the euro, yen, pound, Canadian dollar, Swedish krona and Swiss franc.
Options trading on the index in May totalled 5,848 contracts, the most since the month of the Lehman default, when 9,582 changed hands.
A total of 88,628 currency futures traded on the bourse last month, up 25% month on month and up 10% year on year.
On Wednesday, the bourse announced plans to list 10 new FX futures, eight of them denominated in euros, with a face value identical to euro contracts listed at CME.
ICE has also expanded its exchange-member firm-fee programme for the dollar index to include all FX futures and options contracts, at a rate of $0.30 per side.