Medibank Private Limited (MPL.AX) Stock Analysis & Winston Score

Medibank Private is one of Australia's largest private health insurers. It sells health insurance policies to individuals and families, helping cover the cost of hospital stays, doctor visits, and extras like dental and optical care. The company operates two main brands — Medibank and ahm — and serves roughly 3.9 million customers across Australia. Medibank makes money by collecting monthly premiums from policyholders and paying out claims when customers use healthcare services. It operates entirely within Australia and holds around a 27% share of the private health insurance market, giving it significant scale and brand recognition. The main risk the business faces is claims inflation — if hospital and medical costs rise faster than the premiums Medibank is allowed to charge, its profit margins can shrink. Premium increases in Australia require government approval each year, which limits how quickly the company can respond to rising costs.