Buoyant ASX chases US tech rally; Aussie above US70c

Summary

• Tech stocks are firing as the ASX 200 adds 0.8% at Tuesday's open
• Wall Street had a bright start to the week, with the NASDAQ surging to a record high
• The Aussie has ridden bullish sentiment back above US70c. It is currently worth US70.17c
• RBA Governor Philip Lowe will speak today on the labour market and public-sector balance sheets