Why 4DMedical, COG, Collins Foods, and Ioneer shares are racing higher

In afternoon trade, the S&P/ASX 200 Index (ASX: XJO) is on course to record a disappointing decline. At the time of writing, the benchmark index is down 1.65% to 8,753.8 points.

Four ASX shares that are not letting that hold them back are listed below. Here’s why…