RSSS vs NRDY vs STRA vs COUR vs DUOL

For growth investors, Duolingo, Inc.

(DUOL) is the stronger pick with 38. 7% revenue growth year-over-year, versus -5. 9% for Nerdy, Inc. (NRDY). Duolingo, Inc. (DUOL) offers the better valuation at 12. 6x trailing P/E (38. 2x forward), making it the more compelling value choice. Analysts rate Strategic Education, Inc. (STRA) 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, Duolingo, Inc.

(DUOL) is the cheapest at 12. 6x versus Research Solutions, Inc. at 65. 0x. On forward P/E, Strategic Education, Inc. is actually cheaper at 11. 2x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, Research Solutions, Inc.

(RSSS) delivered a total return of +16. 6%, compared to -91. 6% for Nerdy, Inc. (NRDY). Over 10 years, the gap is even starker: RSSS returned +160. 0% versus NRDY's -91. 1%. 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), Strategic Education, Inc.

(STRA) is the lower-risk stock at 0. 49β versus Nerdy, Inc. 's 1. 71β — meaning NRDY is approximately 251% more volatile than STRA relative to the S&P 500. On balance sheet safety, Coursera, Inc. (COUR) carries a lower debt/equity ratio of 1% versus 67% for Nerdy, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Duolingo, Inc.

(DUOL) is pulling ahead at 38. 7% versus -5. 9% for Nerdy, Inc. (NRDY). On earnings-per-share growth, the picture is similar: Duolingo, Inc. grew EPS 355. 9% year-over-year, compared to 13. 2% for Nerdy, Inc.. Over a 3-year CAGR, DUOL leads at 41. 1% 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.

Duolingo, Inc.

(DUOL) is the more profitable company, earning 39. 9% net margin versus -22. 3% for Nerdy, Inc. — meaning it keeps 39. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: STRA leads at 15. 5% versus -19. 3% for NRDY. At the gross margin level — before operating expenses — DUOL leads at 72. 2%, 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.

On forward earnings alone, Strategic Education, Inc.

(STRA) trades at 11. 2x forward P/E versus 38. 2x for Duolingo, Inc. — 27. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for NRDY: 102. 9% to $1. 75.

In this comparison, STRA (3.

1% yield) pays a dividend. RSSS, NRDY, COUR, DUOL do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Strategic Education, Inc.

(STRA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 49), 3. 1% yield, +117. 3% 10Y return). Nerdy, Inc. (NRDY) carries a higher beta of 1. 71 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (STRA: +117. 3%, NRDY: -91. 1%), 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 (RSSS (Technology) and NRDY (Technology) and STRA (Consumer Defensive) and COUR (Consumer Defensive) and DUOL (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: RSSS is a small-cap quality compounder stock; NRDY is a small-cap quality compounder stock; STRA is a small-cap deep-value stock; COUR is a small-cap quality compounder stock; DUOL is a small-cap high-growth stock. STRA pays a dividend while RSSS, NRDY, COUR, DUOL 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.