HNNA vs DHIL

For growth investors, Hennessy Advisors, Inc.

(HNNA) is the stronger pick with 19. 9% revenue growth year-over-year, versus 4. 5% for Diamond Hill Investment Group, Inc. (DHIL). Hennessy Advisors, Inc. (HNNA) offers the better valuation at 7. 8x trailing P/E, making it the more compelling value choice. 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, Hennessy Advisors, Inc.

(HNNA) is the cheapest at 7. 8x versus Diamond Hill Investment Group, Inc. at 9. 8x.

Over the past 5 years, Hennessy Advisors, Inc.

(HNNA) delivered a total return of +34. 5%, compared to +28. 7% for Diamond Hill Investment Group, Inc. (DHIL). Over 10 years, the gap is even starker: DHIL returned +52. 8% versus HNNA's -34. 6%. 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), Hennessy Advisors, Inc.

(HNNA) is the lower-risk stock at 0. 30β versus Diamond Hill Investment Group, Inc. 's 0. 57β — meaning DHIL is approximately 89% more volatile than HNNA relative to the S&P 500. On balance sheet safety, Hennessy Advisors, Inc. (HNNA) carries a lower debt/equity ratio of 41% versus 36% for Diamond Hill Investment Group, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Hennessy Advisors, Inc.

(HNNA) is pulling ahead at 19. 9% versus 4. 5% for Diamond Hill Investment Group, Inc. (DHIL). On earnings-per-share growth, the picture is similar: Hennessy Advisors, Inc. grew EPS 38. 0% year-over-year, compared to 14. 4% for Diamond Hill Investment 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.

Diamond Hill Investment Group, Inc.

(DHIL) is the more profitable company, earning 30. 9% net margin versus 28. 0% for Hennessy Advisors, Inc. — meaning it keeps 30. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: DHIL leads at 38. 4% versus 37. 0% for HNNA. At the gross margin level — before operating expenses — DHIL leads at 96. 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.

All stocks in this comparison pay dividends.

Diamond Hill Investment Group, Inc. (DHIL) offers the highest yield at 5. 7%, versus 5. 4% for Hennessy Advisors, Inc. (HNNA).

For long-horizon retirement investors, Hennessy Advisors, Inc.

(HNNA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 30), 5. 4% yield). Both have compounded well over 10 years (HNNA: -34. 6%, DHIL: +52. 8%), 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: HNNA is a small-cap high-growth stock; DHIL is a small-cap deep-value 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.