Sector Indices vs ASX All Ordinaries Index show earlier deterioration of the market throughout August (whereas XJO only starts to deteriorate from Aug 28): in the largest 20 companies of the XTL index, in Communications XTJ, Resources XJR, Materials XMJ, Financials XXJ, Consumer Staples XSJ, Utilities XUJ. See next "Idea" for the sectors that prevented the XJO from slumping early.