Monolithic Power Systems (MEX:MPWR) Shiller PE Ratio: 128.14 (As of Aug. 25, 2026) — 10% Below Median

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MEX:MPWR Monolithic Power Systems Inc MEX:MPWR
99 GF Score
Price MXN21,710.00
GF Value MXN20,412.77
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Monolithic Power Systems Shiller PE Ratio?

Monolithic Power Systems MEX:MPWR -2.56% 99 Shiller PE Ratio is 128.14 as of Aug. 25, 2026, which is 10% below its 10-year median of 141.70. GuruFocus rates MEX:MPWR with a GF Score™ of 99/100 and a GF Value™ of MXN20,412.77 (Fairly Valued). The stock has 2 warning signs investors should review. Among 542 Semiconductors companies, Monolithic Power Systems ranks worse than 84.32% on this metric.

As of today (2026-08-25), Monolithic Power Systems's current share price is MXN21710.00. Monolithic Power Systems's E10 for the quarter that ended in Jun. 2026 was MXN169.43. Monolithic Power Systems's Shiller PE Ratio for today is 128.14.

The historical rank and industry rank for Monolithic Power Systems's Shiller PE Ratio or its related term are showing as below:

MEX:MPWR' s Shiller PE Ratio Range Over the Past 10 Years
Min: 59.82   Med: 141.7   Max: 303.51
Current: 127.1

During the past years, Monolithic Power Systems's highest Shiller PE Ratio was 303.51. The lowest was 59.82. And the median was 141.70.

MEX:MPWR's Shiller PE Ratio is ranked worse than
84.32% of 542 companies
in the Semiconductors industry
Industry Median: 39.975 vs MEX:MPWR: 127.10

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Monolithic Power Systems's adjusted earnings per share data for the three months ended in Jun. 2026 was MXN91.084. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is MXN169.43 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Monolithic Power Systems  (MEX:MPWR) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Monolithic Power Systems Shiller PE Ratio Related Terms


Monolithic Power Systems Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Monolithic Power Systems's Shiller PE Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Monolithic Power Systems Shiller PE Ratio Chart

Monolithic Power Systems Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 240.24 116.31 159.91 77.65 100.82

Monolithic Power Systems Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 88.05 105.86 100.82 114.87 136.73

MEX:MPWR vs NXPI, ALAB, CBRS: Shiller PE Ratio Comparison

For the Semiconductors subindustry, Monolithic Power Systems's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Monolithic Power Systems Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Monolithic Power Systems's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Monolithic Power Systems's Shiller PE Ratio falls into.


MEX:MPWR
99GF Score
Monolithic Power Systems Inc MEX:MPWR
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Monolithic Power Systems Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Monolithic Power Systems's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=21710.00/169.43
=128.14

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Monolithic Power Systems's E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, Monolithic Power Systems's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=91.084/333.9520*333.9520
=91.084

Current CPI (Jun. 2026) = 333.9520.

Monolithic Power Systems Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 6.574 241.428 9.093
201612 8.041 241.432 11.122
201703 6.214 243.801 8.512
201706 6.327 244.955 8.626
201709 9.800 246.819 13.260
201712 5.303 246.524 7.184
201803 8.902 249.554 11.913
201806 10.807 251.989 14.322
201809 13.281 252.439 17.569
201812 11.977 251.233 15.920
201903 11.251 254.202 14.781
201906 8.644 256.143 11.270
201909 12.635 256.759 16.434
201912 13.202 256.974 17.157
202003 18.055 258.115 23.360
202006 14.773 257.797 19.137
202009 26.067 260.280 33.445
202012 17.903 260.474 22.953
202103 19.419 264.877 24.483
202106 23.091 271.696 28.382
202109 29.609 274.310 36.047
202112 30.976 278.802 37.103
202203 32.853 287.504 38.161
202206 47.680 296.311 53.737
202209 51.696 296.808 58.165
202212 47.765 296.797 53.745
202303 40.736 301.836 45.070
202306 34.974 305.109 38.280
202309 43.199 307.789 46.871
202312 33.609 306.746 36.590
202403 31.367 312.332 33.538
202406 37.556 314.175 39.920
202409 58.086 315.301 61.522
202412 623.168 315.605 659.394
202503 57.488 319.799 60.032
202506 52.910 322.561 54.778
202509 68.057 324.800 69.975
202512 62.300 324.054 64.203
202603 70.688 330.213 71.488
202606 91.084 333.952 91.084

Add all the adjusted EPS together and divide 10 will get our E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Frequently Asked Questions Learn more about Shiller PE Ratio →
What does a Shiller PE Ratio of 128.14 mean?
Monolithic Power Systems (MEX:MPWR) has a Shiller PE Ratio of 128.14 as of Aug. 25, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Monolithic Power Systems and its competitors. This is 10% below median its historical median of 141.70. Over the past decade, Monolithic Power Systems' Shiller PE Ratio has ranged from 59.82 to 303.51. According to the industry distribution chart, Monolithic Power Systems ranks #457 out of 542 companies in the Semiconductors industry, placing it in the top 84.3%.
Is Monolithic Power Systems' Shiller PE Ratio too high?
Monolithic Power Systems' current Shiller PE Ratio of 128.14 is 10% below median its 10-year median of 141.70. Over the past 10 years, this metric has ranged from a low of 59.82 to a high of 303.51. The Semiconductors industry median Shiller PE Ratio is 39.98. Monolithic Power Systems' value of 128.14 is 220.6% above this industry median. Based on the distribution chart, Monolithic Power Systems ranks #457 out of 542 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Monolithic Power Systems has a GF Score™ of 99/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Monolithic Power Systems' Shiller PE Ratio compare to NXPI and ALAB?
According to the Semiconductors industry distribution chart, Monolithic Power Systems ranks #457 out of 542 companies for Shiller PE Ratio. This places Monolithic Power Systems in the lower half of its industry. The industry median Shiller PE Ratio is 39.98. Monolithic Power Systems' value of 128.14 is 220.6% above this benchmark. Historically, Monolithic Power Systems' own Shiller PE Ratio has ranged from 59.82 to 303.51 over the past decade. While the company's 10-year median is 141.70 vs. the industry median of 39.98, Monolithic Power Systems has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for a Semiconductors company?
The median Shiller PE Ratio among Semiconductors companies is 39.98, based on 542 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Monolithic Power Systems's current Shiller PE Ratio of 128.14 is 220.6% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Monolithic Power Systems and its competitors. For the Semiconductors industry, the median Shiller PE Ratio is 39.98 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Monolithic Power Systems's current Shiller PE Ratio is 128.14, which is 10% below median its own 10-year median of 141.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Monolithic Power Systems stock overvalued right now?
Based on GuruFocus' analysis, Monolithic Power Systems (MEX:MPWR) is currently considered Fairly Valued. The stock's GF Value™ is MXN20,412.77, compared to a current price of MXN21,710.00 — trading 6.4% above its estimated fair value. The current Shiller PE Ratio is 128.14, which is 10% below median its 10-year median of 141.70 and 220.6% above the Semiconductors industry median of 39.98. Monolithic Power Systems' overall GF Score™ is 99/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Monolithic Power Systems (MEX:MPWR), the current Shiller PE Ratio is 128.14 as of Aug. 25, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Monolithic Power Systems (MEX:MPWR) Overvalued in 2026?

Based on GuruFocus' analysis, Monolithic Power Systems stock appears to be overvalued. The current stock price of MXN21,710.00 is trading 6.4% above its estimated GF Value™ of MXN20,412.77. GuruFocus considers Monolithic Power Systems to be Fairly Valued.

Key valuation signals for MEX:MPWR:

  • Shiller PE Ratio: 128.14 (10% below median its 10-year median of 141.70)
  • GF Value™: MXN20,412.77 vs. price of MXN21,710.00 (6.4% above fair value)
  • GF Score™: 99/100 with 2 warning signs
  • Industry Position: 220.6% above the Semiconductors median (#457 of 542)

No single metric tells the full story. See the MEX:MPWR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Monolithic Power Systems Business Description

Address 1555 Palm Beach Lakes Boulevard, West Palm Beach, FL, USA, 33401
Monolithic Power Systems is an analog and mixed-signal chipmaker specializing in power management solutions. Its mission is to reduce total energy consumption in end systems. It serves the computing, automotive, industrial, communications, and consumer end markets. MPS uses a fabless manufacturing model, partnering with third-party chip foundries to host its proprietary BCD process technology.
99GF Score

Get the complete analysis for MEX:MPWR

Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

MXN21,710.00
Price
MXN20,412.77
GF Value