Why Ausnet, Qantas, Suncorp, & Sydney Airport shares are tumbling lower

The S&P/ASX 200 Index (ASX: XJO) is on course to record another disappointing decline. In afternoon trade, the benchmark index is down 1.1% to 7,016.4 points.

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

The Ausnet Services…