Figures show that commercial lines insurers in the US increased their underwriting profits in 2014. However a new report by Fitch reveals that sentiment is lower due to the challenges of creating future premium growth. Moderate premium increases and helped grow profits last year but the future is looking less rosy with investment yields falling and higher accident year loss ratios among the challenges. Property/casualty industry aggregate commercial lines results show net premiums increasing by 3.2 per cent with the reported accident year loss at 66.2 per cent. Fitch rate the outlook for the property/casualty sector as stable.