Why Altium, Catapult, Dicker Data, & PolyNovo shares are charging higher

In late trade, the S&P/ASX 200 Index (ASX: XJO) is out of form and tumbling lower. At the time of writing, the benchmark index is down 0.7% to 7,472.5 points.

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