ELSE vs PESI

For growth investors, Electro-Sensors, Inc.

(ELSE) is the stronger pick with 9. 6% revenue growth year-over-year, versus 4. 3% for Perma-Fix Environmental Services, Inc. (PESI). Electro-Sensors, Inc. (ELSE) offers the better valuation at 58. 7x 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.

Over the past 5 years, Electro-Sensors, Inc.

(ELSE) delivered a total return of +72. 6%, compared to +46. 7% for Perma-Fix Environmental Services, Inc. (PESI). Over 10 years, the gap is even starker: PESI returned +174. 4% versus ELSE's +137. 7%. 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), Electro-Sensors, Inc.

(ELSE) is the lower-risk stock at 0. 02β versus Perma-Fix Environmental Services, Inc. 's 1. 74β — meaning PESI is approximately 6964% more volatile than ELSE relative to the S&P 500.

By revenue growth (latest reported year), Electro-Sensors, Inc.

(ELSE) is pulling ahead at 9. 6% versus 4. 3% for Perma-Fix Environmental Services, Inc. (PESI). On earnings-per-share growth, the picture is similar: Electro-Sensors, Inc. grew EPS 62. 1% year-over-year, compared to 43. 6% for Perma-Fix Environmental Services, Inc.. Over a 3-year CAGR, ELSE leads at 2. 9% 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.

Electro-Sensors, Inc.

(ELSE) is the more profitable company, earning 4. 8% net margin versus -22. 3% for Perma-Fix Environmental Services, Inc. — meaning it keeps 4. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ELSE leads at -0. 0% versus -19. 0% for PESI. At the gross margin level — before operating expenses — ELSE leads at 48. 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.

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, Electro-Sensors, Inc.

(ELSE) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 02), +137. 7% 10Y return). Perma-Fix Environmental Services, Inc. (PESI) carries a higher beta of 1. 74 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ELSE: +137. 7%, PESI: +174. 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.

These companies operate in different sectors (ELSE (Technology) and PESI (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

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.