Schroders, the 200-year-old UK asset manager, could be about to drop out of the FTSE 100 for the first time in over a decade, according to equity research out from rival Aberdeen Asset Management.

The FTSE 100 is due for its quarterly rebalancing on September 6, and the inclusion of UK insurer Standard Life following its demutualisation and initial public offering, and fellow insurer Resolution, could see Schroders demoted.