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Bringing Together Fragmentation

By Fidessa
Post- MIFID, the rate of fragmentation in Europe has been extremely rapid. The Fidessa Fragmentation Index (FFI) provides a simple, unbiased measure of how different stocks are fragmenting across primary markets and alternative venues.
FFI shows the average number of venues you should visit in order to achieve best execution when completing an order. So an index of 1 means that the stock is still traded at one venue. Increases in the FFI indicate a fragmentation of trading across multiple venues and as such any firm wishing to effectively trade that security must be able to execute across more venues.
Here are a few points that we see the data supporting…


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