The London Stock Exchange’s quarterly review has seen Aberdeen Asset Management relegated into the FTSE 250 following continued share price erosion.
BlackRock took a short position in competitor Aberdeen last month amid speculation the Scotland-headquartered asset manager – the third biggest in Europe – would fall out of the FTSE 100.
This year £3.7bn has been stripped from Aberdeen’s share value for a multitude of reasons including overexposure to emerging markets, fears over a hard landing in China, declining oil price and concerns over US monetary policy.
Aberdeen’s reliance on emerging markets saw it report a £9.1bn net outflown in January over the final quarter of 2015.
Other asset managers reported to have shorted the stock include Odey Asset Management and AQR.