PINS vs MGNI vs PUBM vs IAS

For growth investors, Pinterest, Inc.

(PINS) is the stronger pick with 15. 8% revenue growth year-over-year, versus -2. 9% for PubMatic, Inc. (PUBM). Magnite, Inc. (MGNI) offers the better valuation at 14. 7x trailing P/E (13. 4x forward), making it the more compelling value choice. Analysts rate Pinterest, Inc. (PINS) a "Buy" — based on 47 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. 7x versus Integral Ad Science Holding Corp. at 45. 0x. On forward P/E, Pinterest, Inc. is actually cheaper at 11. 8x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, Integral Ad Science Holding Corp.

(IAS) delivered a total return of -49. 8%, compared to -77. 1% for PubMatic, Inc. (PUBM). Over 10 years, the gap is even starker: MGNI returned -4. 7% versus PUBM's -65. 2%. 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), Integral Ad Science Holding Corp.

(IAS) is the lower-risk stock at 0. 83β versus Magnite, Inc. 's 1. 63β — meaning MGNI is approximately 96% more volatile than IAS relative to the S&P 500. On balance sheet safety, Pinterest, Inc. (PINS) carries a lower debt/equity ratio of 6% versus 30% for Magnite, Inc. — giving it more financial flexibility in a downturn.

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

(PINS) is pulling ahead at 15. 8% versus -2. 9% for PubMatic, Inc. (PUBM). On earnings-per-share growth, the picture is similar: Magnite, Inc. grew EPS 493. 8% year-over-year, compared to -234. 8% for PubMatic, Inc.. Over a 3-year CAGR, IAS leads at 17. 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 -5. 1% for PubMatic, 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 -6. 1% for PUBM. At the gross margin level — before operating expenses — PINS leads at 80. 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.

On forward earnings alone, Pinterest, Inc.

(PINS) trades at 11. 8x forward P/E versus 27. 5x for Integral Ad Science Holding Corp. — 15. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for IAS: 38. 2% to $14. 29.

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, Integral Ad Science Holding Corp.

(IAS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 83)). Magnite, Inc. (MGNI) carries a higher beta of 1. 63 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (IAS: -49. 8%, MGNI: -4. 7%), 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 (PINS (Communication Services) and MGNI (Communication Services) and PUBM (Technology) and IAS (Communication Services)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: PINS is a mid-cap high-growth stock; MGNI is a small-cap deep-value stock; PUBM is a small-cap quality compounder stock; IAS is a small-cap quality compounder 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.