Nov 27 (Reuters) - ** Aussie Broadband's shares ABB.AX rise 3.8% to A$3.715
** Stock set for their best day in nearly three months
** Co to buy back of up to 10% of shares over the next year
** Stock has fallen 4.5% this year, as of last close
(Reporting by Nichiket Sunil)
((Nichiket.Sunil@thomsonreuters.com;))