The share market weakened slightly before upcoming events including the release of European and US economic data, the weekend meeting of G20 finance ministers and central bankers in Moscow, and Italian elections the following weekend.
Upcoming negotiations over US fiscal policy were also cited as a reason for caution after the domestic bourse hit a four-and-a-half year high this week.
Source:
http://www.theaustralian.com.au/business/markets/packed-weekend-calendar-or-g20-and-data-weighs-on-shares/story-e6frg916-1226578672055