The Australian share market has opened higher, with healthcare and tech stocks in the ascendancy after the S&P 500 and the Nasdaq hit record closing highs overnight.

The benchmark S&P/ASX200 index was up 38.4 points, or 0.61 per cent, to 6,357.8 points at 1015 AEST on Wednesday, while the broader All Ordinaries rose 36.9 points, or 0.58 per cent, to 6,448.0.

The ASX200 had surged through the 6,300-point barrier on Tuesday in the first trading session since the four-day Easter break, hitting its highest mark in more than seven months thanks to a buoyant energy sector.

Energy was higher again at Wednesday’s open after another lift in oil prices.

The Australian dollar has continued to slip against a strengthening US dollar and was worth 70.98 cents, from 71.19 on Tuesday.