A weekly report on the ups and downs of exhibition companies listed on the London Stock Exchange and FTSE 100 Index over the past month.

Informa was trading at 424p down from 427p.

Centaur was trading still at 55p.

Tarsus was trading at 144p up from 142p.

Reed Elsevier was trading at 555p up from 548p.

United Business Media was trading at 564p down from 591p.

ITE Group was trading at 251p up from 245p.