JHG vs AMG

For growth investors, Janus Henderson Group plc (JHG) is the stronger pick with 25.

2% revenue growth year-over-year, versus 19. 8% for Affiliated Managers Group, Inc. (AMG). Janus Henderson Group plc (JHG) offers the better valuation at 9. 9x trailing P/E (12. 0x forward), making it the more compelling value choice. Analysts rate Affiliated Managers Group, Inc. (AMG) a "Buy" — based on 12 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, Janus Henderson Group plc (JHG) is the cheapest at 9.

9x versus Affiliated Managers Group, Inc. at 13. 5x. On forward P/E, Affiliated Managers Group, Inc. is actually cheaper at 9. 2x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Affiliated Managers Group, Inc. wins at 0. 23x versus Janus Henderson Group plc's 0. 24x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Affiliated Managers Group, Inc.

(AMG) delivered a total return of +75. 1%, compared to +59. 6% for Janus Henderson Group plc (JHG). Over 10 years, the gap is even starker: JHG returned +197. 0% versus AMG's +89. 4%. 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), Janus Henderson Group plc (JHG) is the lower-risk stock at 0.

92β versus Affiliated Managers Group, Inc. 's 1. 14β — meaning AMG is approximately 24% more volatile than JHG relative to the S&P 500. On balance sheet safety, Janus Henderson Group plc (JHG) carries a lower debt/equity ratio of 6% versus 61% for Affiliated Managers Group, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Janus Henderson Group plc (JHG) is pulling ahead at 25.

2% versus 19. 8% for Affiliated Managers Group, Inc. (AMG). On earnings-per-share growth, the picture is similar: Janus Henderson Group plc grew EPS 104. 3% year-over-year, compared to 50. 3% for Affiliated Managers Group, 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.

Affiliated Managers Group, Inc.

(AMG) is the more profitable company, earning 29. 3% net margin versus 25. 8% for Janus Henderson Group plc — meaning it keeps 29. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AMG leads at 31. 8% versus 31. 5% for JHG. At the gross margin level — before operating expenses — AMG leads at 86. 0%, 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, Affiliated Managers Group, Inc. (AMG) is the more undervalued stock at a PEG of 0. 23x versus Janus Henderson Group plc's 0. 24x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Affiliated Managers Group, Inc. (AMG) trades at 9. 2x forward P/E versus 12. 0x for Janus Henderson Group plc — 2. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AMG: 8. 3% to $331. 50.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Janus Henderson Group plc (JHG) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

92), +197. 0% 10Y return). Both have compounded well over 10 years (JHG: +197. 0%, AMG: +89. 4%), 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.