BLIN vs PRDO vs DGII vs STRA

For growth investors, Perdoceo Education Corporation (PRDO) is the stronger pick with 24.

2% revenue growth year-over-year, versus 0. 2% for Bridgeline Digital, Inc. (BLIN). Perdoceo Education Corporation (PRDO) offers the better valuation at 14. 2x trailing P/E (12. 0x forward), making it the more compelling value choice. Analysts rate Digi International Inc. (DGII) a "Buy" — based on 18 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, Perdoceo Education Corporation (PRDO) is the cheapest at 14.

2x versus Digi International Inc. at 57. 4x. On forward P/E, Strategic Education, Inc. is actually cheaper at 11. 0x — 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: Digi International Inc. wins at 0. 87x versus Perdoceo Education Corporation's 1. 77x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Digi International Inc.

(DGII) delivered a total return of +247. 1%, compared to -57. 7% for Bridgeline Digital, Inc. (BLIN). Over 10 years, the gap is even starker: PRDO returned +505. 6% versus BLIN's -99. 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), Perdoceo Education Corporation (PRDO) is the lower-risk stock at 0.

48β versus Digi International Inc. 's 1. 40β — meaning DGII is approximately 188% more volatile than PRDO relative to the S&P 500. On balance sheet safety, Bridgeline Digital, Inc. (BLIN) carries a lower debt/equity ratio of 6% versus 28% for Digi International Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Perdoceo Education Corporation (PRDO) is pulling ahead at 24.

2% versus 0. 2% for Bridgeline Digital, Inc. (BLIN). On earnings-per-share growth, the picture is similar: Digi International Inc. grew EPS 77. 0% year-over-year, compared to -31. 6% for Bridgeline Digital, Inc.. Over a 3-year CAGR, PRDO leads at 6. 8% 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.

Perdoceo Education Corporation (PRDO) is the more profitable company, earning 18.

9% net margin versus -16. 4% for Bridgeline Digital, Inc. — meaning it keeps 18. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PRDO leads at 23. 2% versus -14. 2% for BLIN. At the gross margin level — before operating expenses — PRDO leads at 71. 7%, 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, Digi International Inc. (DGII) is the more undervalued stock at a PEG of 0. 87x versus Perdoceo Education Corporation's 1. 77x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Strategic Education, Inc. (STRA) trades at 11. 0x forward P/E versus 26. 9x for Digi International Inc. — 15. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for STRA: 10. 0% to $87. 00.

In this comparison, STRA (3.

2% yield), PRDO (1. 6% yield) pay a dividend. BLIN, DGII do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Perdoceo Education Corporation (PRDO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

48), 1. 6% yield, +505. 6% 10Y return). Both have compounded well over 10 years (PRDO: +505. 6%, BLIN: -99. 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.

These companies operate in different sectors (BLIN (Technology) and PRDO (Consumer Defensive) and DGII (Technology) and STRA (Consumer Defensive)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: BLIN is a small-cap quality compounder stock; PRDO is a small-cap high-growth stock; DGII is a small-cap quality compounder stock; STRA is a small-cap deep-value stock. PRDO, STRA pay a dividend while BLIN, DGII 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.