Opening gains for ASX as heavyweights pull ahead

Summary

• Blue-chip stocks are pushing the ASX 200 higher in early trade as the index rebounds from two sessions of losses
• Wall Street finished higher after the US Fed vowed to keep using "its full range of tools" to prop up the US economy
• Victorian coronavirus cases are reported to have increased by 723 overnight - a new daily record
• Commonwealth Bank has flagged a $300 million provision charge for the second half of 2019-20