MSCI vs MCO

For growth investors, MSCI Inc.

(MSCI) is the stronger pick with 9. 7% revenue growth year-over-year, versus 8. 9% for Moody's Corporation (MCO). Moody's Corporation (MCO) offers the better valuation at 33. 4x trailing P/E (27. 4x forward), making it the more compelling value choice. Analysts rate MSCI Inc. (MSCI) a "Buy" — based on 27 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Moody's Corporation (MCO) is the cheapest at 33.

4x versus MSCI Inc. at 37. 8x. On forward P/E, Moody's Corporation is actually cheaper at 27. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: MSCI Inc. wins at 1. 77x versus Moody's Corporation's 3. 51x — a reasonable growth-adjusted valuation.

Over the past 5 years, Moody's Corporation (MCO) delivered a total return of +41.

4%, compared to +27. 9% for MSCI Inc. (MSCI). Over 10 years, the gap is even starker: MSCI returned +720. 9% versus MCO's +409. 5%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), MSCI Inc.

(MSCI) is the lower-risk stock at 0. 61β versus Moody's Corporation's 0. 86β — meaning MCO is approximately 42% more volatile than MSCI relative to the S&P 500.

By revenue growth (latest reported year), MSCI Inc.

(MSCI) is pulling ahead at 9. 7% versus 8. 9% for Moody's Corporation (MCO). On earnings-per-share growth, the picture is similar: Moody's Corporation grew EPS 21. 4% year-over-year, compared to 10. 7% for MSCI Inc.. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

MSCI Inc.

(MSCI) is the more profitable company, earning 38. 4% net margin versus 31. 9% for Moody's Corporation — meaning it keeps 38. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MSCI leads at 54. 7% versus 44. 8% for MCO. At the gross margin level — before operating expenses — MSCI leads at 82. 4%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, MSCI Inc. (MSCI) is the more undervalued stock at a PEG of 1. 77x versus Moody's Corporation's 3. 51x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Moody's Corporation (MCO) trades at 27. 4x forward P/E versus 30. 0x for MSCI Inc. — 2. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for MCO: 19. 2% to $544. 75.

All stocks in this comparison pay dividends.

MSCI Inc. (MSCI) offers the highest yield at 1. 2%, versus 0. 9% for Moody's Corporation (MCO).

For long-horizon retirement investors, MSCI Inc.

(MSCI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 61), 1. 2% yield, +720. 9% 10Y return). Both have compounded well over 10 years (MSCI: +720. 9%, MCO: +409. 5%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Financial Services sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.