Why Beach Energy, Bigtincan, Pointerra, & ResMed are sinking today

In afternoon trade, the S&P/ASX 200 Index (ASX: XJO) looks set to finish the week on a disappointing note. At the time of writing, the benchmark index is down 0.8% to 7,028.1 points.

Four ASX shares that are falling more than most today are listed below. Here’s why they are sinking:

The Beach Energy share price has crashed 21% lower to $1.32 after the release of its quarterly update. That update fell short of expectations due largely to issues at the Western Flank oil and gas operation. These issues are so severe that its full year guidance has been downgraded and its five-year outlook has been withdrawn.

Bigtincan Holdings Ltd (ASX: BTH)

The Bigtincan share price has sunk 11.5% to 88 cents following its third quarter update….