cumprimentos,
bluexip

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Tick Changes for U.S. Treasury Products Coming March 3, 2008:

Beginning trade date March 3, 2008 CME Group will reduce the minimum
tick size for three of its most actively traded U.S. Treasury products.
  The following products will have new minimum tick values for
outrights, starting on Sunday night, March 2, 2008 for trade date March
3, 2008:


  *  30-Year U.S. Treasury Bond Futures (Clearing Code 17) from 1/32nd
to ½ of 1/32nd (from $31.25 to $15.625),
  *  5-Year U.S. Treasury Note Futures (Clearing Code 25) from ½ of
1/32nd to ¼ of 1/32nd (from $15.625 to $7.8125), and
  *  5-Year U.S. Treasury Note Options, including Flexible Options
(Clearing Codes 25, 57, and 60) from 1/64th to ½ of 1/64th (from $15.625
to $7.8125).

FOR THE FULL TEXT OF THIS ADVISORY :
http://www.cme.com/clearing/clr/clradv/files/Chadv08-26.pdf