Shares in Aggreko shed 1.9 percent, a top faller on a 0.1 percentweaker FTSE 100 , with traders citing a downgrade by HSBC Securities to"neutral" from "overweight", on valuation grounds, as denting sentiment in thetemporary power supplier.

"A number of indicators suggest a cooling in Aggreko's cyclical end marketsin recent months," HSBC says in a note.