JLMSim:
Release Notes
We may release new versions of the JLM
Simulator over time. This page tracks the changes to the Simulator with release
dates and a brief note describing each enhancement. Only the latest JLM
Simulator program will be available for download. You can identify which version
is currently installed by looking at the version number on the JLM Simulator
output file names. Whenever we release a new
version, we will automatically alert all registered users by email (unless the
user has opted to be excluded from our JLM Simulator distribution list). To be
added to the distribution list, send your contact information to the email
address at the bottom of this page.
| Version | Release Date |
Release Notes |
| M23 | April 11,2005 | Original Release |
| M23a | June 30,2005 |
It is not possible to short against
the box in M23 or M23a, since only one number is stored for each
investor-security combination to indicate a long (+) or short(-)
position. Upon reoptimization, a simulated investor may seek to go from
a long holding to a short position in a given security. In this case,
the investor and its trader are supposed to liquidate the long position
first, then sell short, subject to the uptick rule (unless this has been
deactivated by the user). We noticed that with M23, in rare cases, a
short sale of a security took place before the investor's trader had
liquidated the long position. This has been corrected in M23a. |