The Australian share market has finished lower for the fourth time this week as investors ponder the impact of the virus lockdowns in Victoria.

The benchmark S&P/ASX200 index finished Friday down 36.3 points, or 0.61 per cent, at 5,919.2 points, while The All Ordinaries index closed down 38.6, or 0.64 per cent, at 6,036.3.

The Australian dollar was buying 69.30 US cents, down from 69.86 US cents at the close of local trade on Thursday.