Best's Market Segment Report: AM Best Maintains Negative Outlook on U.K. Non-Life Insurance Market AM Best is maintaining a negative market segment outlook on the United Kingdom non-life insurance segment, citing economic uncertainty as a key headwind for U.K. non-life insurers. Additionally, COVID-19-related lockdown measures coincided with the country's preparation to leave the European single market, and together contributed to the biggest economic contraction since records began. This is expected to maintain pressure on premium income. Strong competition and claims inflation also are likely to dent technical results in the motor line of business, which accounts for approximately a third of U.K. non-life premiums.