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PC-SPAN version 4 is an easy-to-use Windows program that allows you to load SPAN risk parameter files for exchanges and clearing organizations of interest, define portfolios, calculate margins, and view or print results. Version 4 was first made available in 1999. The latest build of version 4 is numbered as 593as 610.

PC-SPAN version 4:

  • Supports the XML-based SPAN file format and the Paris-expanded-unpacked format in addition to the original unpacked and expanded-unpacked formats.
  • Supports the XML-based position file format as well as the original unpacked and expanded-unpacked position file formats.
  • Supports the SPAN files produced by over 35 world exchanges currently leveraging SPAN margin methodology. 

Minimum System Requirements

The latest PC-SPAN version 4 (build 610) requires:

  • A PC running a version starting with Windows with Windows 7  or or higher (Windows server build 2008 2012 R2 or higher).
  • Support x64 platform of Windows OS. Will not support x86 platform of Windows OS onwards.
  • Microsoft .NET Framework 4.5.2 or higher.
  • The following C++ Visual Libraries:
    Visual C++ 2010 SP1 Runtime Libraries (x86) 
  • Visual C++ 2010 SP1 Runtime Libraries (x64)
  • Visual C++ 2013 Runtime Libraries (x86) 
  • Visual C++ 2013 Runtime Libraries  2015 Runtime Libraries (x64)
  • Approx. 15 100 megabytes of disk space to install.
  • Approx. 50 500 megabytes of free space to be able to install and use the program.
  • Minimum of 64 megabytes 4 gigabytes of RAM. Adding more RAM will greatly improve performance.