Welcome to the Web site for WinJammer, a Windows application developed jointly by the Chicago Mercantile Exchange and the Chicago Board of Trade.  WinJammer is quickly becoming the futures industry standard for  for clearing firms to enter and transmit FOCUS and 1-FR financial statements.  Organizations supporting WinJammer include:

Chicago Board of Trade
Chicago Board Options Exchange
Chicago Mercantile Exchange
Chicago Stock Exchange
Commodity Futures Trading Commission
Federal Reserve Bank of New York
New York Mercantile Exchange

For a description of the key features and benefits of WinJammer, please visit the documentation section of this Web site.