The Sunday Market is closed on Sunday 19 December for all stalls.
"the Council does not permit us to trade on any Sunday within 10 days before Christmas",
ref: http://www.sundaymarket.com.au/Default.aspx?p=5
I am back open again on 26 Dec - Boxing Day when the Sunday Market re-opens.
I will be there for all the kids (and adults) who were given cash for a Christmas present so they can buy LEGO!