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Magnite (MGNI, Advertising) Stock Valuation & Fair Value Fairly valued

Magnite (MGNI, Advertising) trades at a blended P/E of 23.3, about 20% below its historical normal valuation, with a forward growth estimate of 18.8% and a PEG of 1.24. Analysts' one-year estimates have been hit 9% of the time. Priced at its historical normal P/E of 28.9 on the same blended earnings, the 2026-09-18 close of $25.15 corresponds to about $31.30 a share. This is a valuation reference, not a price target.

DATA AS OF 2026-09-21
Blended P/E
23.3
Normal P/E
28.9
PEG
1.24
Fwd growth
18.8%
Div yield
0.0%
RSI (14)
62.9
Neutral

Valuation flags

Verdict history

tickerseer's rating moved from trading above fair value (2026-07-31) to fairly valued (2026-09-21).

Blended P/E and rating by weekBlended P/E moved from 19.0 to 23.3 between 2026-07-31 and 2026-09-21, against a normal P/E of 28.9, with 3 rating changes over 18 recorded weeks.2026-07-31: P/E 19.0, Trading above fair value (recalculated)2026-08-03: P/E 18.9, Trading above fair value2026-08-07: P/E 18.9, Trading above fair value (recalculated)2026-08-10: P/E 23.5, Fairly valued2026-08-14: P/E 23.5, Fairly valued (recalculated)2026-08-17: P/E 23.5, Fairly valued2026-08-21: P/E 23.5, Fairly valued (recalculated)2026-08-24: P/E 22.2, Fairly valued2026-08-27: P/E 22.2, Fairly valued (recalculated)2026-08-28: P/E 22.2, Fairly valued (recalculated)2026-08-30: P/E 22.2, Fairly valued (recalculated)2026-08-31: P/E 22.3, Fairly valued2026-09-05: P/E 22.3, Fairly valued (recalculated)2026-09-07: P/E 22.6, Quality business with a solid forward outlook2026-09-12: P/E 22.6, Quality business with a solid forward outlook (recalculated)2026-09-14: P/E 22.1, Quality business with a solid forward outlook2026-09-19: P/E 22.1, Quality business with a solid forward outlook (recalculated)2026-09-21: P/E 23.3, Fairly valued20.025.0Jul 31Aug 13Aug 26Sep 8Sep 21Normal P/E 28.9
Attractively valuedFairly valuedAbove fair valueLarger dot: a stronger reading

Not every point was recorded live. Points marked recalculated apply today's valuation rules to the metrics tickerseer archived that week.

Selected weeks: the first, the latest, every week the rating moved, and the cheapest and dearest.

WeekBlended P/EPremium to normal P/ERating
2026-07-31P/E 19.0-34%Trading above fair value
2026-08-03P/E 18.9-35%Trading above fair value
2026-08-10P/E 23.5-19%Fairly valued
2026-09-07P/E 22.6-22%Quality business with a solid forward outlook
2026-09-21P/E 23.3-20%Fairly valued ← now

Frequently asked questions

Is Magnite stock overvalued?

At a blended P/E of 23.3 versus its historical normal P/E of 28.9, Magnite trades about 20% below its typical valuation, with a PEG of 1.24 on 18.8% forward growth. tickerseer currently rates it fairly valued.

What is Magnite's fair value and PEG?

Magnite trades at a blended P/E of 23.3 against a historical normal P/E of 28.9, a PEG of 1.24, and a forward growth estimate of 18.8%. Priced at its historical normal P/E of 28.9 on the same blended earnings, the 2026-09-18 close of $25.15 corresponds to about $31.30 a share. This is a valuation reference, not a price target.

Has tickerseer's rating of Magnite changed?

tickerseer's rating moved from trading above fair value (2026-07-31) to fairly valued (2026-09-21).

Industry: Advertising. Create a free account to see the full analysis: the SeerAI score, its five quality sub-scores, valuation history, and the AI research note. Options setups and metric history are part of the paid plans.

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