ROKU vs MGNI

For growth investors, Roku, Inc.

(ROKU) is the stronger pick with 15. 2% revenue growth year-over-year, versus 6. 9% for Magnite, Inc. (MGNI). Magnite, Inc. (MGNI) offers the better valuation at 14. 1x trailing P/E (12. 9x forward), making it the more compelling value choice. Analysts rate Roku, Inc. (ROKU) a "Buy" — based on 45 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, Magnite, Inc.

(MGNI) is the cheapest at 14. 1x versus Roku, Inc. at 216. 9x. On forward P/E, Magnite, Inc. is actually cheaper at 12. 9x.

Over the past 5 years, Roku, Inc.

(ROKU) delivered a total return of -55. 0%, compared to -58. 5% for Magnite, Inc. (MGNI). Over 10 years, the gap is even starker: ROKU returned +444. 6% versus MGNI's -5. 4%. 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), Magnite, Inc.

(MGNI) is the lower-risk stock at 1. 63β versus Roku, Inc. 's 2. 10β — meaning ROKU is approximately 29% more volatile than MGNI relative to the S&P 500. On balance sheet safety, Magnite, Inc. (MGNI) carries a lower debt/equity ratio of 30% versus 33% for Roku, Inc. — giving it more financial flexibility in a downturn.

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

(ROKU) is pulling ahead at 15. 2% versus 6. 9% for Magnite, Inc. (MGNI). On earnings-per-share growth, the picture is similar: Magnite, Inc. grew EPS 493. 8% year-over-year, compared to 166. 3% for Roku, Inc.. Over a 3-year CAGR, ROKU leads at 14. 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.

Magnite, Inc.

(MGNI) is the more profitable company, earning 20. 3% net margin versus 1. 9% for Roku, Inc. — meaning it keeps 20. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MGNI leads at 13. 7% versus -0. 1% for ROKU. At the gross margin level — before operating expenses — MGNI leads at 62. 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.

On forward earnings alone, Magnite, Inc.

(MGNI) trades at 12. 9x forward P/E versus 58. 1x for Roku, Inc. — 45. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for MGNI: 34. 4% to $18. 00.

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, Magnite, Inc.

(MGNI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding. Roku, Inc. (ROKU) carries a higher beta of 2. 10 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (MGNI: -5. 4%, ROKU: +444. 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.

Both stocks operate in the Communication Services sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: ROKU is a mid-cap high-growth stock; MGNI 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.