Chipotle up after quarterly sales beat

** Shares of burrito chain Chipotle Mexican Grill CMG.N up about 3% at $29.50 in extended trading

** Company beats Q3 sales estimates helped by steady traffic for its value deals and limited-time offerings

** Reports Q3 comparable restaurant sales up 2.1% versus estimate of 1.4% rise, according to data compiled by LSEG

** Quarterly revenue rises 9.6% to $3.29 billion, in line with expectations

** However, CMG misses quarterly adjusted EPS hurt by higher input costs, such as labor, packaging and raw materials

** As of last close, stock down ~23% YTD