Australian tech stocks track Wall Street higher
** Australian tech stocks .AXIJ rise as much as 3.9%, posting their biggest intraday pct gain since October 2
** Tech stocks rise after Wall Street ended higher on Thursday .N
** Tech majors WiseTech Global WTC.AX and Xero XRO.AX rise 1.9% and 2.2%, respectively
** Sub-index down 3% so far this week, heading for its biggest weekly fall in more than a month
** YTD, tech index down 23.4%