Tower Limited (TWR.NZ) Stock Analysis & Winston Score
Tower Limited is a New Zealand-based insurance company that sells home, car, contents, and business insurance to everyday customers. It operates mainly in New Zealand and the Pacific Islands, serving individual households and small businesses. Tower is one of the older and more recognized insurance brands in New Zealand, competing against larger players like IAG and Suncorp. Tower makes money by collecting premiums from policyholders and investing those funds, paying out claims when customers suffer losses like car accidents or storm damage. The company has been investing in digital tools and data-driven pricing to better assess risk and attract customers online, which is a key part of its strategy. However, New Zealand's exposure to natural disasters — especially earthquakes and severe weather events — creates significant claims volatility, and Tower's current negative operating margin shows that claims costs and expenses have been outpacing premium income, making profitability a central challenge for the business.
Winston Score: 48/100 — Average
Mixed quality — meaningful strengths and weaknesses.
- Quality: Good (17/30)
- Growth: Weak (4/20)
- Cash Flow: Exceptional (9/10)
- Stability: Data not available (0/10)
- Valuation: Strong (7/10)
- Ownership: Mixed (6/15)
Key Facts
Price: 1.87 NZD
Market Cap: 642M NZD
Sector: Financial Services
Industry: Insurance - Property & Casualty
Exchange: New Zealand Exchange



