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Monolithic Power Systems (MPWR, Semiconductors) Stock Valuation & Fair Value Significantly overvalued

Monolithic Power Systems (MPWR, Semiconductors) trades at a blended P/E of 57.5, about 49% above its historical normal valuation, with a forward growth estimate of 24.4% and a PEG of 2.36. Analysts' one-year estimates have been hit 73% of the time. Priced at its historical normal P/E of 38.6 on the same blended earnings, the 2026-10-02 close of $1,439.73 corresponds to about $967 a share. This is a valuation reference, not a price target.

DATA AS OF 2026-10-05
Blended P/E
57.5
Normal P/E
38.6
PEG
2.36
Fwd growth
24.4%
Div yield
0.6%
RSI (14)
53.7
Neutral
Technical context
  • Price $1,369.80 at the 2026-10-08 close, 4.0% above the 20-day average ($1,317.60) and 4.3% above the 50-day ($1,313.80).
  • RSI (14) at 53.7.
  • 52-week range $851.25 to $1,684.83: the price is 18.7% below the high and 60.9% above the low.

The Street vs SeerForecast

Wall Street's mean price target for MPWR is $1,839.80 across 15 analysts, 34.3% above the current price. Our SeerForecast read of the same stock, formed without analyst targets: significantly overvalued. When the two disagree, start your digging there.

Valuation flags

Verdict history

tickerseer's rating has been significantly overvalued since 2026-06-03.

Blended P/E and rating by weekBlended P/E moved from 80.6 to 57.5 between 2026-06-03 and 2026-10-02, against a normal P/E of 38.6, with 2 rating changes over 37 recorded weeks.2026-06-03: P/E 80.6, Significantly overvalued, recalculated for the week of 2026-06-032026-06-10: P/E 72.7, Significantly overvalued, recalculated for the week of 2026-06-102026-06-12: P/E 72.7, Significantly overvalued, recalculated for the week of 2026-06-142026-06-16: P/E 72.7, Significantly overvalued, recalculated for the week of 2026-06-162026-06-18: P/E 72.7, Significantly overvalued, recalculated for the week of 2026-06-212026-07-02: P/E 64.0, Significantly overvalued, recalculated for the week of 2026-07-022026-07-06: P/E 61.8, Significantly overvalued, recalculated for the week of 2026-07-062026-07-09: P/E 61.8, Significantly overvalued, recalculated for the week of 2026-07-092026-07-10: P/E 64.5, Significantly overvalued, recalculated for the week of 2026-07-122026-07-13: P/E 64.5, Significantly overvalued, recalculated for the week of 2026-07-132026-07-14: P/E 64.5, Significantly overvalued, recalculated for the week of 2026-07-142026-07-20: P/E 62.2, Significantly overvalued, recalculated for the week of 2026-07-202026-07-22: P/E 62.2, Significantly overvalued, recalculated for the week of 2026-07-222026-07-24: P/E 62.5, Significantly overvalued, recalculated for the week of 2026-07-252026-07-27: P/E 62.5, Significantly overvalued, recalculated for the week of 2026-07-272026-07-31: P/E 56.4, Significantly overvalued, recalculated for the week of 2026-07-312026-07-31: P/E 61.0, Significantly overvalued, recorded live 2026-08-032026-08-07: P/E 57.8, Significantly overvalued, recalculated for the week of 2026-08-072026-08-07: P/E 59.5, Significantly overvalued, recorded live 2026-08-102026-08-14: P/E 57.4, Significantly overvalued, recalculated for the week of 2026-08-142026-08-14: P/E 59.0, Significantly overvalued, recorded live 2026-08-172026-08-21: P/E 54.8, Significantly overvalued, recalculated for the week of 2026-08-212026-08-21: P/E 55.0, Significantly overvalued, recorded live 2026-08-242026-08-27: P/E 55.0, Significantly overvalued, recalculated for the week of 2026-08-272026-08-28: P/E 54.4, Significantly overvalued, recalculated for the week of 2026-08-282026-08-28: P/E 52.1, Trading above its usual valuation, recalculated for the week of 2026-08-302026-08-28: P/E 52.1, Trading above its usual valuation, recorded live 2026-08-312026-09-04: P/E 50.4, Trading above its usual valuation, recalculated for the week of 2026-09-052026-09-04: P/E 50.4, Trading above its usual valuation, recorded live 2026-09-072026-09-11: P/E 50.4, Trading above its usual valuation, recalculated for the week of 2026-09-122026-09-11: P/E 50.4, Trading above its usual valuation, recorded live 2026-09-142026-09-18: P/E 49.4, Trading above its usual valuation, recalculated for the week of 2026-09-192026-09-18: P/E 49.4, Trading above its usual valuation, recorded live 2026-09-212026-09-25: P/E 55.0, Significantly overvalued, recalculated for the week of 2026-09-262026-09-25: P/E 55.0, Significantly overvalued, recorded live 2026-09-282026-10-02: P/E 57.5, Significantly overvalued, recalculated for the week of 2026-10-032026-10-02: P/E 57.5, Significantly overvalued, recorded live 2026-10-0540.060.080.0Jun 3Jul 3Aug 2Sep 2Oct 2Normal P/E 38.6
Trading above its usual valuationSignificantly overvaluedLarger 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
2026-06-03P/E 80.6+109%Significantly overvalued (recalculated)
2026-08-30P/E 52.1+35%Trading above its usual valuation (recalculated)
2026-09-19P/E 49.4+28%Trading above its usual valuation (recalculated)
2026-09-26P/E 55.0+43%Significantly overvalued (recalculated)
2026-10-05P/E 57.5+49%Significantly overvalued ← now
Show all 37 weeks
WeekBlended P/EPremium to normal P/ERating
2026-06-03P/E 80.6+109%Significantly overvalued (recalculated)
2026-06-10P/E 72.7+88%Significantly overvalued (recalculated)
2026-06-14P/E 72.7+88%Significantly overvalued (recalculated)
2026-06-16P/E 72.7+88%Significantly overvalued (recalculated)
2026-06-21P/E 72.7+88%Significantly overvalued (recalculated)
2026-07-02P/E 64.0+66%Significantly overvalued (recalculated)
2026-07-06P/E 61.8+60%Significantly overvalued (recalculated)
2026-07-09P/E 61.8+60%Significantly overvalued (recalculated)
2026-07-12P/E 64.5+67%Significantly overvalued (recalculated)
2026-07-13P/E 64.5+67%Significantly overvalued (recalculated)
2026-07-14P/E 64.5+67%Significantly overvalued (recalculated)
2026-07-20P/E 62.2+61%Significantly overvalued (recalculated)
2026-07-22P/E 62.2+61%Significantly overvalued (recalculated)
2026-07-25P/E 62.5+62%Significantly overvalued (recalculated)
2026-07-27P/E 62.5+62%Significantly overvalued (recalculated)
2026-07-31P/E 56.4+46%Significantly overvalued (recalculated)
2026-08-03P/E 61.0+58%Significantly overvalued
2026-08-07P/E 57.8+50%Significantly overvalued (recalculated)
2026-08-10P/E 59.5+54%Significantly overvalued
2026-08-14P/E 57.4+49%Significantly overvalued (recalculated)
2026-08-17P/E 59.0+53%Significantly overvalued
2026-08-21P/E 54.8+42%Significantly overvalued (recalculated)
2026-08-24P/E 55.0+42%Significantly overvalued
2026-08-27P/E 55.0+42%Significantly overvalued (recalculated)
2026-08-28P/E 54.4+41%Significantly overvalued (recalculated)
2026-08-30P/E 52.1+35%Trading above its usual valuation (recalculated)
2026-08-31P/E 52.1+35%Trading above its usual valuation
2026-09-05P/E 50.4+30%Trading above its usual valuation (recalculated)
2026-09-07P/E 50.4+30%Trading above its usual valuation
2026-09-12P/E 50.4+31%Trading above its usual valuation (recalculated)
2026-09-14P/E 50.4+31%Trading above its usual valuation
2026-09-19P/E 49.4+28%Trading above its usual valuation (recalculated)
2026-09-21P/E 49.4+28%Trading above its usual valuation
2026-09-26P/E 55.0+43%Significantly overvalued (recalculated)
2026-09-28P/E 55.0+43%Significantly overvalued
2026-10-03P/E 57.5+49%Significantly overvalued (recalculated)
2026-10-05P/E 57.5+49%Significantly overvalued ← now

Frequently asked questions

Is Monolithic Power Systems stock overvalued?

At a blended P/E of 57.5 versus its historical normal P/E of 38.6, Monolithic Power Systems trades about 49% above its typical valuation, with a PEG of 2.36 on 24.4% forward growth. tickerseer currently rates it significantly overvalued.

What is Monolithic Power Systems's fair value and PEG?

Monolithic Power Systems trades at a blended P/E of 57.5 against a historical normal P/E of 38.6, a PEG of 2.36, and a forward growth estimate of 24.4%. Priced at its historical normal P/E of 38.6 on the same blended earnings, the 2026-10-02 close of $1,439.73 corresponds to about $967 a share. This is a valuation reference, not a price target.

Has tickerseer's rating of Monolithic Power Systems changed?

tickerseer's rating has been significantly overvalued since 2026-06-03.

What is the analyst price target for Monolithic Power Systems?

The mean Wall Street price target for Monolithic Power Systems is $1,839.80 across 15 analysts, 34.3% above the current price. tickerseer's SeerForecast verdict is formed independently of analyst targets.

Industry: Semiconductors. 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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