Is Kinsale Capital Group, Inc. overvalued or undervalued?

As of 21 May 2025, the valuation grade for Kinsale Capital Group, Inc. has moved from expensive to very expensive, indicating a significant increase in perceived valuation. The company is currently considered overvalued. Key ratios include a P/E ratio of 27, a Price to Book Value of 7.01, and an EV to Sales ratio of 6.53, which are notably higher than those of its peers.
In comparison, Cincinnati Financial Corp. has a P/E ratio of 19.43 and Unum Group shows a P/E of 13.72, both indicating more attractive valuations relative to Kinsale. Additionally, Kinsale's PEG ratio stands at 1.86, further suggesting that its growth prospects may not justify its current price. Despite the company's strong recent stock performance, including a 21.75% return over the past year compared to the S&P 500's 10.26%, the elevated valuation metrics imply that Kinsale Capital Group, Inc. may not be a prudent investment at this time.