Mirroring weakness in the global markets the Sensex opened 38 points lower at 14,261, and soon tumbled to a low of 14,201. The index, thereafer, recovered on the back of fresh buying in technology stocks.Later in the day, the buying focus shifted from technology to private banking and select heavyweights like ITC and Reliance, which, saw the index rebound and touch a high of 14,337 - up 136 points from the day's low.The Sensex finally ended on a flat note at 14,303 - up four points.