CBOT Top Daily Volume & Open Interest Records For Monday, May 21

Daily: Exchange - Futures and Options Open Interest Record
New Record: 18,498,811 May 21, 2007
Old Record: 18,399,602 Feb 22, 2007

Daily: Exchange - Futures Open Interest Record
New Record: 10,455,030 May 21, 2007
Old Record: 10,415,014 May 18, 2007

Daily: Financial - Futures and Options Open Interest Record
New Record: 12,822,168 May 21, 2007
Old Record: 12,708,301 May 18, 2007

Daily: Financial - Futures Open Interest Record
New Record: 7,546,530 May 21, 2007
Old Record: 7,515,163 May 18, 2007

Daily: Treasury Complex - Futures Open Interest Record
New Record: 6,884,928 May 21, 2007
Old Record: 6,852,179 May 18, 2007

Daily: 10 Year U.S. Treasury Notes - Futures Open Interest Record
New Record: 3,002,015 May 21, 2007
Old Record: 2,986,063 May 18, 2007

Daily: 2 Year U.S. Treasury Notes - Futures and Options Open Interest Record
New Record: 1,210,415 May 21, 2007
Old Record: 1,202,693 May 18, 2007

Daily: 2 Year U.S. Treasury Notes - Futures Open Interest Record
New Record: 1,176,281 May 21, 2007
Old Record: 1,168,386 May 18, 2007

Daily: DJ (sm) US Real Estate - Futures Open Interest Record
New Record: 182 May 21, 2007
Old Record: 159 May 9, 2007

Daily: DJ AIG Excess Return (sm) Open Interest Record
New Record: 3,238 May 21, 2007
Old Record: 3,149 May 17, 2007