FSI vs PESI vs HNNA vs NTIC vs GURE

For growth investors, Hennessy Advisors, Inc.

(HNNA) is the stronger pick with 19. 9% revenue growth year-over-year, versus -74. 5% for Gulf Resources, Inc. (GURE). Hennessy Advisors, Inc. (HNNA) offers the better valuation at 8. 0x trailing P/E, making it the more compelling value choice. Analysts rate Perma-Fix Environmental Services, Inc. (PESI) a "Hold" — based on 1 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, Hennessy Advisors, Inc.

(HNNA) is the cheapest at 8. 0x versus Northern Technologies International Corporation at 4438. 9x.

Over the past 5 years, Flexible Solutions International, Inc.

(FSI) delivered a total return of +100. 9%, compared to -94. 6% for Gulf Resources, Inc. (GURE). Over 10 years, the gap is even starker: FSI returned +402. 2% versus GURE's -95. 0%. 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 Perma-Fix Environmental Services, Inc. 's 1. 85β — meaning PESI is approximately 510% more volatile than HNNA relative to the S&P 500. On balance sheet safety, Gulf Resources, Inc. (GURE) carries a lower debt/equity ratio of 6% versus 41% for Hennessy Advisors, 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 -74. 5% for Gulf Resources, Inc. (GURE). On earnings-per-share growth, the picture is similar: Perma-Fix Environmental Services, Inc. grew EPS 43. 6% year-over-year, compared to -99. 7% for Northern Technologies International Corporation. Over a 3-year CAGR, NTIC leads at 4. 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.

Hennessy Advisors, Inc.

(HNNA) is the more profitable company, earning 28. 0% net margin versus -769. 3% for Gulf Resources, Inc. — meaning it keeps 28. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: HNNA leads at 37. 0% versus -277. 8% for GURE. At the gross margin level — before operating expenses — HNNA leads at 70. 1%, 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.

In this comparison, HNNA (5.

3% yield), NTIC (2. 0% yield), FSI (1. 6% yield) pay a dividend. PESI, GURE do not pay a meaningful dividend and should not be held primarily for income.

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. 3% yield). Perma-Fix Environmental Services, Inc. (PESI) carries a higher beta of 1. 85 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (HNNA: -35. 0%, PESI: +178. 6%), 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.

These companies operate in different sectors (FSI (Basic Materials) and PESI (Industrials) and HNNA (Financial Services) and NTIC (Basic Materials) and GURE (Basic Materials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: FSI is a small-cap quality compounder stock; PESI is a small-cap quality compounder stock; HNNA is a small-cap high-growth stock; NTIC is a small-cap quality compounder stock; GURE is a small-cap quality compounder stock. FSI, HNNA, NTIC pay a dividend while PESI, GURE do not, making them suitable for different income and tax situations. 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.