The BSE benchmark Sensex was trading 31 points in green at 19,337 in afternoon trade a short while ago. Earlier, Sensex recovered by 23 points after showing initial losses in the late morning trade on the back of fresh buying mainly in realty, refinery, power and healthcare sectors in view of persistent capital inflows from foreign funds despite weak Asian cues.The NIFTY at the National Stock Exchange was up by 8 to 5,879.