Moody’svs.S&P Global
MCO vs SPGI · both in Exchanges & market data, part of the Banks, payments & capital markets value chain: The exchanges, index owners and ratings agencies that run, and price, the markets.
S&P Global is about 1.5× larger than Moody’s by market cap; S&P Global trades at the lower P/E (24.9 vs 29.8); year to date, Moody’s leads (+0.4% vs −17.1%).
Side by side
| MCO | SPGI | |
|---|---|---|
| Market cap | $83.2B | $123B |
| Price | $514.55 | $436.49 |
| Today | +0.3% | +0.8% |
| Return YTD | +0.4% | −17.1% |
| Return 1Y | +0.6% | −21.5% |
| P/E | 29.8 | 24.9 |
| P/S | 10.2 | 7.6 |
| P/B | 27.5 | 3.9 |
Data as of 2026-08-27 · updates daily after U.S. close
The two companies
Moody’sMCO
When a company borrows, Moody's rates the debt; it and S&P split that market between them. A faster-growing analytics arm sells risk and modelling tools to the same customers.
Full MCO profile →S&P GlobalSPGI
Credit ratings on the bonds companies issue are one revenue stream. The S&P 500 and Dow Jones index franchises are another. Market and commodity intelligence sold on subscription is the third. Very little of this revenue has to be won again each year.
Full SPGI profile →More MCO & SPGI comparisons
Other head-to-heads in the Exchanges & market data segment.