Why Mineral Resources, Paladin Energy, Regis, and Smartgroup are sinking

The S&P/ASX 200 Index (ASX: XJO) has given back the majority of its intraday gains and is on course to record a very small gain. At the time of writing, the benchmark index is up slightly to 7,443.4 points.

Four ASX shares that have failed to follow the market higher…