BUZZ-Premier Farnell: top FTSE-250 loser on dim outlook
** Premier Farnell (LSE: PFL.L - news) poised for biggest one-day drop since early Feb in strong volume
** Sees (Shanghai: 600481.SS - news) a 10 pct drop in H1 adj. operating profit after sales growth per day in its main markets slowed in Q2
** Q2 sales growth per day had slowed mainly in its North American and UK markets
** Stock, down c.13 pct, top FTSE 250 faller & most actively traded on index (RM (LSE: RM.L - news) : aastha.agnihotri.thomsonreuters.com@reuters.net)