The Australian share market is expected to open lower after a mixed lead from Wall Street overnight.

The SPI200 futures contract was down 14 points, or 0.21 per cent, at 6,579.0 at 0800 AEST, suggesting an early dip for the benchmark S&P/ASX200 on Tuesday.

On Wall Street, the Dow Jones Industrial Average closed up 0.03 per cent, the S&P 500 was down 0.17 per cent and the tech-heavy Nasdaq Composite was down 0.32 per cent.

The Aussie dollar is buying 69.65 US cents from 69.55 US cents on Monday.