Thought it was the 18th letter of the Greek alphabet? You would be wrong. Sigma has taken on a whole new meaning such as dominant leader, lone wolf, cool and popular. If you’re called a “sigma ...

The competition regulator is still expected to make its final call on the blockbuster merger of drug wholesaler Sigma Healthcare and pharmacy chain Chemist Warehouse in four weeks. In June ...

Under ASX rules large investors and investment funds must disclose when they own more than a 5% stake in Sigma Healthcare Limited (SIG). However, you won't necessarily see their names in the company’s ...

I do like a constant f/2.8 ‘trinity’ standard zoom but the Sigma 28-105mm F2.8 DG DN Art offers something a bit different. Compared with most 24-70mm lenses of the breed, I like being able to stretch ...