BUZZ-Huntsworth: margin woes at Grayling, div cut hurt shares
** PR and communications firm Huntsworth (LSE: HNT.L - news) loses more than a quarter of its value after reporting declining 2014 revenue and profits and halving its dividend
** Stock is biggest loser by far among UK small-caps with volumes in the stock nearly 3 times its full-day average in the first 45 mins of trading
** Operating margins at Grayling halved for 2014 as revenue fell short of expectations and unit was continued to struggle into Q1 this year, Huntsworth says
** Co says will take a goodwill charge of £65 mln against value of Grayling
** Dividend slashed to 0.75p/shr vs 2.50p/shr paid out in 2013 (RM (LSE: RM.L - news) : vikram.subhedar.thomsonreuters.com@reuters.net)