** London-listed white-collar recruiter SThree downc8 pct, poised for biggest one-day drop since Dec 2011, afterflags more difficult market conditions in Banking & Finance inboth the UK and US
** Co says UK market impacted by EU referendum uncertainties
** Stock worst performer on FTSE Small Cap Index
** Stock +7.7 pct YTD (until Thurs close)
** Separately, Deutsche Bank downgrades Hays andPageGroup to "sell" (reckons slower US growth will be aprecursor to weaker growth in other geographies) (Reuters Messaging: rahul.b.thomsonreuters.com@reuters.net)
