Centro is my only trading stock at the moment. It has been a set pattern for a while - low 20s buy (only once above 25c), high 20s/low 30s sell. Nice surprise recently selling 23c shares at 50c. At current prices it is in no-mans-land - it could fall further or it could go back up. I'll buy more if it falls to 23-24c and sell the rest if it hits 30-35c. Between 25c and 30c I hold.