The Australian share market is expected to open lower after a negative lead from overseas.

The SPI200 futures contract was down 29 points, or 0.45 per cent, at 6,464.0 at 0700 AEST, suggesting a fall for the benchmark S&P/ASX200 on Friday.

On Wall Street overnight, the Dow Jones Industrial Average was down 1.11 per cent, the S&P 500 was down 1.19 per cent and the tech-heavy Nasdaq Composite was down 1.58 per cent.

The Aussie dollar is buying 69.01 US cents from 68.71 US cents on Thursday.