WPP PLC closed 31.50% short of its 52-week high of £9.03, which the company achieved on December 9th.
The FTSE 100 index ended down 112.31 points, 1.3%, at 8,759.00. The FTSE 250 slumped 431.79 points, 2.1%, at 19,950.50, and the AIM All-Share fell 14.93 points, 2.1%, at 686.87.