#  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  W  V  X  Y  Z

Split commission is a commission that is divided between two brokers. First broker is the one who executed the transaction, and the second broker is the one who provided the order to the first broker.
The broker who executed the transaction charges commission, which will be shared between both brokers involved.