BUZZ-Premier Farnell: Poised for worst 2-day fall in 4 years
** Engineering supply group's shares poised for worst one-day drop in 6 years, after grim trading update catches investors off-guard
** At least 3 brokerages cut PTs (Other OTC: PTSH - news) on stock, citing concerns about co's ability to deliver sales growth, long-term margin targets and sustain its dividend
** Stock second-biggest loser on FTSE 250 midcap index and top loser on the FTSE 350 support services index
** Shares (Berlin: DI6.BE - news) touch 133.68 pence, their lowest since July 2009
** The Raspberry Pi maker said on Wed that it had begun review into ops and that it expects H1 adj oper profit to fall 10 pct
** 5 of 11 brokerages rate the stock "buy" or higher, 6 "hold"; their median PT is 200 pence, which has fallen from 207.50 just three months ago (abhiram.nandakumar.thomsonreuters.com@reuters.net)