Six of the 11 sectors gained on a mixed day of trading. Despite Friday’s falls the ASX added 1.8 per cent in a strong start to the years trading. Six of the 11 sectors gained on a mixed day of trading. NewsWire / Jeremy PiperLeading the decline were materials stocks which slumped 3.20 per cent as commodities retreated from record highs. Sector heavyweight CSL shares added 1.13, ResMed jumped 3.13 per cent to $3754 and Pro Medicus added 1.34 per cent to $184.12.