Concerns arise from the declining ROCE and decreasing capital employed in the business. High current liabilities pose risks, possibly contributing to the stock's depreciation over the past five years.

Rastar Group's poor revenue performance may signal future underperformance compared to industry peers, possibly leading to its low P/S ratio. Unless conditions improve, this could continue to hinder the share price.

Rastar Group's diminishing ROCE and lower capital used might hint at business decline. High liability to total assets ratio, though not outright negative, may raise risks from reliance on suppliers or short-term creditors. Despite a 5.0% stock returns in the past, if these trends persist, other investments may offer superior outcomes.