[ Thanks to dmandpenfold for this link.
“If the merger goes ahead, the exchanges will also integrate
“complementary” derivatives businesses, and combine their US
options platforms. The savings represent 26 percent of the
€300 million total planned cost cuts, which also include more
efficient clearing and market operations.
“The companies declined to confirm exact supplier plans, but
both run their matching engines on Red Hat Enterprise Linux and the
system is understood to be seen as the most likely backbone for the
proposed single trading system. Several market sources confirmed
the exchanges would be inclined for Red Hat systems to take a
central position in the exchanges’ merged infrastructure.”