AFGB vs MMC

For growth investors, Marsh & McLennan Companies, Inc.

(MMC) is the stronger pick with 7. 6% revenue growth year-over-year, versus 1. 3% for American Financial Group, Inc. (AFGB). American Financial Group, Inc. (AFGB) offers the better valuation at 2. 1x trailing P/E (1. 9x forward), making it the more compelling value choice. Analysts rate Marsh & McLennan Companies, Inc. (MMC) a "Hold" — based on 26 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, American Financial Group, Inc.

(AFGB) is the cheapest at 2. 1x versus Marsh & McLennan Companies, Inc. at 21. 3x. On forward P/E, American Financial Group, Inc. is actually cheaper at 1. 9x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Marsh & McLennan Companies, Inc. wins at 0. 88x versus American Financial Group, Inc. 's 1. 38x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Marsh & McLennan Companies, Inc.

(MMC) delivered a total return of +36. 8%, compared to +1. 2% for American Financial Group, Inc. (AFGB). Over 10 years, the gap is even starker: MMC returned +209. 6% versus AFGB's +26. 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), Marsh & McLennan Companies, Inc.

(MMC) is the lower-risk stock at 0. 14β versus American Financial Group, Inc. 's 0. 74β — meaning AFGB is approximately 441% more volatile than MMC relative to the S&P 500. On balance sheet safety, American Financial Group, Inc. (AFGB) carries a lower debt/equity ratio of 38% versus 162% for Marsh & McLennan Companies, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Marsh & McLennan Companies, Inc.

(MMC) is pulling ahead at 7. 6% versus 1. 3% for American Financial Group, Inc. (AFGB). On earnings-per-share growth, the picture is similar: Marsh & McLennan Companies, Inc. grew EPS 8. 6% year-over-year, compared to -4. 6% for American Financial Group, Inc.. Over a 3-year CAGR, MMC leads at 7. 3% annualised revenue growth. 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.

Marsh & McLennan Companies, Inc.

(MMC) is the more profitable company, earning 16. 6% net margin versus 10. 4% for American Financial Group, Inc. — meaning it keeps 16. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AFGB leads at 97. 7% versus 23. 8% for MMC. At the gross margin level — before operating expenses — AFGB leads at 45. 9%, 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, Marsh & McLennan Companies, Inc. (MMC) is the more undervalued stock at a PEG of 0. 88x versus American Financial Group, Inc. 's 1. 38x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, American Financial Group, Inc. (AFGB) trades at 1. 9x forward P/E versus 16. 9x for Marsh & McLennan Companies, Inc. — 15. 0x cheaper on a one-year earnings basis.

All stocks in this comparison pay dividends.

American Financial Group, Inc. (AFGB) offers the highest yield at 34. 0%, versus 1. 8% for Marsh & McLennan Companies, Inc. (MMC).

For long-horizon retirement investors, Marsh & McLennan Companies, Inc.

(MMC) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 14), 1. 8% yield, +209. 6% 10Y return). Both have compounded well over 10 years (MMC: +209. 6%, AFGB: +26. 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.

In terms of investment character: AFGB is a small-cap deep-value stock; MMC is a mid-cap quality compounder stock. 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.