The ASX is down 31 points with the Communication Services sector driving the gains.

Of the 50 largest stocks, the most movement has been from Mercury NZ (ASX:MCY) which is higher by 4.46%, Allkem which is higher by 3.80%, and Unibail-Rodamco-Westfield which is higher by 2.74%.

As the Top 50 largest companies comprise almost 60% of the total market, any big changes to their share price may influence the overall market.

The biggest gainer on the ASX at mid-session is AXP Energy (ASX:AXP) - this is a micro cap company.

The biggest loser on the ASX at mid-session is Health House International (ASX:HHI) - this is a micro cap company.