BUZZ-StanChart: worst single-day drop this year on profit tumble

** Standard Chartered posts steep falls in robustvolume after Q3 operating profit dropped 16 pct on bad debt rise& higher costs.

** Stock one of only two decliners on Britain's FTSE 100, down 5.9 pct, biggest one-day percentage drop sinceDec. 2013.

** Trading volume already at half its 90-day daily averagevs UK benchmark on 5 pct.

** Peer Lloyds Banking Group other blue-chipfaller, down 5.3 pct; took another 900 mln pound ($1.45 bln)charge to compensate customers for mis-sold loan insurance.

(RM: tricia.wright1.thomsonreuters.com@reuters.net)