The benchmark S&P/ASX200 index was 9.4 points, or 0.11 per cent, at 8,530.1 shortly before lunchtime on Friday, while the broader All Ordinaries was up 13.8 points, or 0.16 per cent, to 8,799.0
The ASX200 was down by less than two points for the week, having clawed back almost all of Monday's 152.9-point plunge caused by Donald Trump's tariffs on China.
The index set an all-time closing high of 8,532 last Friday.
Capital.com analyst Kyle Rodda said market participants were treading carefully ahead of the US non-farm report to round out the week on Friday night Australian time.
Economists are essentially forecasting a "Goldilocks print" with moderate job growth in January, an unchanged unemployment rate and moderating wage growth, Mr Rodda said.Â
A number in line with those expectations should support equity strength as markets welcome solid economic activity with the door remaining open for a mid-year US rate cut by the Fed.
The ASX's 11 sectors were mixed at lunchtime, with six higher and five lower.
In the heavyweight mining sector, Fortescue had grown 1.7 per cent, BHP had added 0.5 per cent and Rio Tinto had gained 0.9 per cent.
The big four banks were mostly higher, with ANZ and NAB up 0.4 per cent and Westpac adding 0.3 per cent, while CBA was down 0.1 per cent.
Domino's Pizza Enterprises had soared 22.5 per cent to a three-month high of $36.27 after the pizza chain said it would close 205 money-losing stores, mostly in Japan.
The pizza chain also said its same-store sales in Australia and New Zealand were up 0.6 per cent in the first half - apparently enough to send competitor Collins Foods shares up 14.1 per cent to a two-month high of $8.45
Nick Scali meanwhile had grown 13.0 per cent to $18.415 after the furniture retailer's ANZ business delivered a $36 million half-year net profit after tax, beating guidance of $30 million to $33 million.
The Australian dollar was buying 62.93 US cents, from 62.50 US cents at 5pm on Thursday.