▁after ▁Trad E lect ▁had ▁first ▁gone ▁live , ▁the ▁London ▁Stock ▁Exchange ▁decided ▁to ▁sc rap ▁it ▁and ▁replace ▁it ▁with ▁something ▁else . ▁The ▁L SE ▁investig ated ▁the ▁possibility ▁of ▁building ▁a ▁new ▁system ▁in - house , ▁but ▁eventually ▁decided ▁on ▁acqu iring ▁the ▁existing , ▁Linux - based ▁system ▁Mill en ni um ▁Exchange , ▁which ▁had ▁a ▁lower , ▁sub - mill isecond ▁laten cy . ▁It ▁acquired ▁this ▁system ▁by ▁acqu iring ▁the ▁company ▁that ▁created ▁it , ▁Mill en ni um IT , ▁in ▁ 2 0 0 9 , ▁for ▁£ 1 8   mill ion . ▁In ▁its ▁annual ▁report , ▁the ▁L SE ▁said ▁that ▁it ▁expected ▁the ▁switch ▁to ▁Mill en ni um ▁Exchange ▁to ▁save ▁$ 1 6   mill ion ▁per ▁year ▁starting ▁from ▁the ▁ 2 0 1 2 ▁financial ▁year . ▁ ▁By ▁ 2 0 1 1 , ▁Trad E lect ▁had ▁been ▁completely ▁replaced ▁with ▁Mill en ni um ▁Exchange ▁at ▁the ▁London ▁Stock ▁Exchange . ▁ ▁The ▁Os lo ▁Stock ▁Exchange ▁and ▁the ▁Johannes burg ▁Stock ▁Exchange ▁also ▁switched ▁to ▁Mill en ni um ▁Exchange . ▁ ▁References ▁▁ ▁Category : Custom ▁software ▁projects ▁Category : Form er ▁electronic ▁trad ing ▁platforms ▁Category : 2 0 0 7 ▁software <0x0A> </s> ▁Giuseppe ▁Mont ello ▁( born ▁ 7 ▁December ▁ 1 9 9 2 ) ▁is ▁an ▁Italian ▁bi ath lete . ▁He ▁competed ▁in ▁the ▁ 2 0 1 8 ▁Winter ▁Olympics .