News Release

CME Reports September 2006 Volume Averaged 6.0 Million Contracts Per Day, Up 15 Percent from Year-Ago Period; Third-Quarter 2006 Volume Averaged 5.4 Million Contracts Per Day, up 28 Percent from Year-Ago Period

Mon Oct 02 2006

CHICAGO, Oct. 2 /PRNewswire-FirstCall/ -- CME, the world's largest and most diverse financial exchange, today announced September volume averaged 6.0 million contracts per day, up 15 percent from September 2005 . the second highest volume month ever. Total monthly volume in September 2006 was 119 million contracts. Average daily volume on the CME Globex electronic trading platform increased 22 percent from September 2005 to 4.3 million contracts per day, representing 72 percent of total exchange volume. Total options volume was 1.3 million contracts per day, up 15 percent month over month. Electronic options volume averaged 156,000 contracts per day for the month, up 100 percent from the same period a year ago.

CME total interest rate volume averaged 3.4 million contracts per day in September, the second highest volume month ever, up 6 percent from the same period a year ago. CME Eurodollar futures volume averaged a record 2.3 million contracts per day, up 4 percent month over month, and CME Eurodollar options volume was up 10 percent to an average of 1.1 million contracts per day. Electronic volume of CME Eurodollar options averaged 100,000 contracts per day during the month, up 80 percent from September 2005 and representing 8.9 percent of Eurodollar options volume, the highest monthly percentage to date.

CME E-mini equity index volume averaged 1.7 million contracts per day in September, up 32 percent compared with September 2005. Total equity options volume grew 100 percent from the same period a year ago, to 123,000 contracts per day. CME E-mini options volume averaged a record 54,000 contracts per day, up 150 percent from September 2005. CME equity standard volume grew 16 percent to average 205,000 contracts per day.

All statistics in this news release exclude data on CME's non-traditional TRAKRS® products, and CME Auction Markets™ products, unless otherwise noted. All references to options refer to options on futures contracts.

CME foreign exchange volume in September averaged a record 520,000 contracts per day, up 26 percent compared with the year-ago period. Electronic foreign exchange volume increased 40 percent to a record 446,000 contracts per day compared with September 2005.

CME commodities and alternative investments volume averaged 86,000 contracts per day in September, up 37 percent from the same period a year ago.

NYMEX volume on the CME Globex platform averaged a record 273,000 contracts per day in September, up 245 percent compared with June 2006, when products were first available to trade under the current NYMEX-CME agreement.

Third-Quarter Highlights

During the third quarter, CME volume averaged 5.4 million contracts per day, up 28 percent from the same period a year ago. Total volume exceeded 338 million contracts. Average daily volume on the CME Globex electronic trading platform increased 32 percent to 3.8 million contracts per day from the same period a year ago, representing 70 percent of total exchange volume. In the third quarter, total options volume averaged 1.3 million contracts per day, up 39 percent compared with third-quarter 2005. Electronic options volume averaged a record 148,000 contracts per day for the quarter, nearly tripling from the same period a year ago.

CME E-mini equity index volume averaged 1.6 million contracts per day during the quarter, up 32 percent compared with third-quarter 2005. CME E- mini options volume averaged a record 52,000 contracts per day, more than tripling from third quarter 2005. CME equity standard volume grew 30 percent to 154,000 contracts per day.

CME total interest rate volume was 3.1 million contracts per day during the quarter, up 27 percent from the same period a year ago. This increase was driven by continued growth in CME Eurodollar options, up 34 percent to 1.1 million contracts per day. CME Eurodollar options volume traded electronically averaged a record 95,000 contracts, up 146 percent from third- quarter 2005. This represented 8.4 percent of total CME Eurodollar options volume, the highest quarterly percentage to date.

CME foreign exchange volume averaged 423,000 contracts per day, up 26 percent compared with third-quarter 2005. During the quarter, electronic foreign exchange volume averaged 375,000 contracts per day, up 36 percent from the same period last year.

CME commodities and alternative investments volume averaged 78,000 contracts per day for the quarter, up 39 percent from the same period a year ago.

NYMEX volume on CME Globex averaged 175,000 contracts per day during the third quarter.

Open interest for all CME products was 41 million contracts at the end of the quarter, up from 30 million contracts at the end of December. Additionally, the Chicago Board of Trade had 15 million open positions with CME Clearing at the end of the month. Open interest represents the number of contract positions that remain open at the end of a trading session.

  CME QUARTERLY AVERAGE DAILY VOLUME (In Thousands)

                                     Q3 2006         Q3 2005  Percent Change
  CME PRODUCT LINE
  Interest Rates                      3,148           2,489           27%
  E-Minis                             1,564           1,181           32%
  Equity Standard                       154             118           30%
  Foreign Exchange                      423             336           26%
  Commodities                            78              56           39%
    Sub Total                         5,367           4,179           28%
  TRAKRS                                116              27          324%
    Total                             5,484           4,207           30%

  VENUE
  Open Outcry                         1,517           1,263           20%
  CME Globex (Ex TRAKRS)              3,801           2,869           32%
  Privately Negotiated                   50              47            6%


  CME MONTHLY AVERAGE DAILY VOLUME (In Thousands)

                             September 2006   September 2005  Percent Change
  CME PRODUCT LINE
  Interest Rates                    3,400           3,203            6%
  E-Minis                           1,746           1,322           32%
  Equity Standard                     205             177           16%
  Foreign Exchange                    520             411           26%
  Commodities and Alt. Inv.            86              63           37%
    Sub Total                       5,957           5,176           15%
  TRAKRS                              136              25          437%
    Total                           6,093           5,201           17%

  VENUE
  Open Outcry                       1,611           1,604            0%
  CME Globex (Ex TRAKRS)            4,284           3,510           22%
  Privately Negotiated                 63              62            0%

Note: CME Weather and GSCI products moved from Equity Standard to Commodities in April, and prior months were adjusted.

  CME ROLLING THREE-MONTH AVERAGES (excluding TRAKRS)

  Average Rate Per Contract (In Dollars)


                                   By Product Line
  3-Month        Interest            Equity    Foreign   Commodities
  Period Ending    Rates   E-Minis  Standard  Exchange  and Alt. Inv.  Total
  Aug-06           0.484    0.690     1.403     1.131       0.944      0.629
  Jul-06           0.486    0.691     1.406     1.110       0.913      0.637
  Jun-06           0.477    0.698     1.421     1.119       0.921      0.632
  May-06           0.480    0.724     1.429     1.173       0.924      0.644

                                By Venue
  3-Month               Open      CME     Privately
  Period Ending        Outcry   Globex    Negotiated
  Aug-06               0.467     0.661      3.620
  Jul-06               0.484     0.662      3.814
  Jun-06               0.480     0.657      3.785
  May-06               0.479     0.667      3.700

  Average Daily Volume (In Thousands)

                                   By Product Line
  3-Month        Interest            Equity    Foreign   Commodities
  Period Ending    Rates   E-Minis  Standard  Exchange  and Alt. Inv.  Total
  Sep-06           3,148    1,564     154        423         78        5,367
  Aug-06           3,194    1,685     166        411         78        5,535
  Jul-06           3,144    1,818     179        452         84        5,677
  Jun-06           3,255    1,748     173        471         81        5,728

                                By Venue
  3-Month               Open      CME     Privately
  Period Ending        Outcry   Globex    Negotiated
  Sep-06               1,517     3,801        50
  Aug-06               1,629     3,858        48
  Jul-06               1,586     4,046        44
  Jun-06               1,657     4,022        49

CME (http://www.cme.com/) is the world's largest and most diverse financial exchange. As an international marketplace, CME brings together buyers and sellers on the CME Globex® electronic trading platform and on its trading floors. CME offers futures and options on futures in these product areas: interest rates, stock indexes, foreign exchange, agricultural commodities, energy, and alternative investment products such as weather, real estate and economic derivatives. CME is a wholly-owned subsidiary of Chicago Mercantile Exchange Holdings Inc. (NYSE: CME)(NASDAQ: CME), which is part of the Russell 1000® Index and the S&P 500® Index.

Statements in this news release that are not historical facts are forward- looking statements. These statements are not guarantees of future performance and involve risks, uncertainties and assumptions that are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or implied in any forward-looking statements. More detailed information about factors that may affect our performance may be found in our filings with the Securities and Exchange Commission, including our most recent Quarterly Report on Form 10-Q, which can be obtained at its Web site at http://www.sec.gov/. We undertake no obligation to publicly update any forward- looking statements, whether as a result of new information, future events or otherwise.

Chicago Mercantile Exchange, CME, the globe logo, CME Globex and E-mini are trademarks of Chicago Mercantile Exchange Inc. CLEARING 21 is a registered trademark of CME and New York Mercantile Exchange, Inc. S&P, S&P 500, NASDAQ-100, Nikkei 225, Russell 1000, Russell 2000, TRAKRS, Total Return Asset Contracts and other trade names, service marks, trademarks and registered trademarks that are not proprietary to Chicago Mercantile Exchange Inc. are the property of their respective owners, and are used herein under license. Further information about CME and its products is available on the CME Web site at http://www.cme.com/.

CME-G

SOURCE: Chicago Mercantile Exchange

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