The Australian sharemarket opened slightly lower after US stocks closed little changed after a quiet session on Wall Street, due to a lack of major economic or company news.
At the 10.15am (AEST) official market open, the benchmark S&P/ASX200 index lost 15.3 points, or 0.28%, to 5,454.4 points, while the broader All Ordinaries index gave up 15.4 points, or 0.28%, to 5,433.1 points.
In economic news on Wednesday, Westpac and the Melbourne Institute release their latest survey of consumer sentiment.
Reserve Bank of Australia chief information officer Sarv Girn is scheduled to speak at a Committee for Economic Development of Australia event.
The market on Tuesday closed slightly higher, with the benchmark S&P/ASX200 index adding 5.7 points to 5,469.7 and the broader All Ordinaries index gaining five points to 5,448.5.