The proposed merger between Chemist Warehouse and Sigma will create a business with close to $760 million of combined annual EBIT with growth of 12%-19% over the next four years. However, the first hurdle is ACCC approval which may be a drawn-out process. While there is an impressive growth profile, the prospects for rollout beyond Australia and New Zealand is still in its infancy. The upside case would see continued elevated like-for-like sales growth and a seamless integration of the Chemist Warehouse contract.