BUZZ-Aggreko: broker upgrade offers some relief
** Power provider Aggreko (LSE: AGK.L - news) up 2.5pct, one of the top gainers on FTSE-250 midcap index, and off last week's multi-year lows
** Barclays (LSE: BARC.L - news) upgrades stock to "overweight" from "equalweight", sets new PT of 1280p, which is 17 pct above the current level
** Broker believes the majority of possible bad news has materialised and co's revised strategy is sensible
** Aggreko fell over 5 pct on Aug 6 following results in which company warned of a challenging 2016
** Stock has lost more than a quarter of its value this year (RM (LSE: RM.L - news) : aastha.agnihotri.thomsonreuters.com@reuters.net)