Is S&P Global, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for S&P Global, Inc. moved from fair to expensive, indicating that the stock is overvalued. The company exhibits a P/E ratio of 42, a Price to Book Value of 5.60, and an EV to EBITDA ratio of 27.64, all of which are significantly higher than its peers. For instance, Moody's Corp. has a P/E of 73.62 and an EV to EBITDA of 49.32, but both companies are classified as expensive, suggesting that the entire sector is currently trading at high valuations.
In comparison to the S&P 500, S&P Global has underperformed over multiple periods, with a year-to-date return of -4.99% compared to the S&P 500's 13.30%. This trend reinforces the notion that S&P Global, Inc. is overvalued in the current market environment.