Phison Electronics (ROCO:8299) E10: NT$ (As of Jun. 2026)

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ROCO:8299 Phison Electronics Corp ROCO:8299
85 GF Score
Price NT$2,150.00
GF Value NT$1,882.94
Valuation Modestly Overvalued
! 4 Warning Signs
View Full Analysis

What is Phison Electronics E10?

Phison Electronics ROCO:8299 +8.63% 85 E10 is NT$ as of Jun. 2026. GuruFocus rates ROCO:8299 with a GF Score™ of 85/100 and a GF Value™ of NT$1,882.94 (Modestly Overvalued). The stock has 4 warning signs investors should review.

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

Phison Electronics's adjusted earnings per share data for the three months ended in Jun. 2026 was NT$110.766. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$ for the trailing ten years ended in Jun. 2026.

During the past 12 months, Phison Electronics's average E10 Growth Rate was 57.10% per year. During the past 3 years, the average E10 Growth Rate was 5.00% per year. During the past 5 years, the average E10 Growth Rate was 7.40% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Phison Electronics was 14.50% per year. The lowest was 5.00% per year. And the median was 9.00% per year.

As of today (2026-09-22), Phison Electronics's current stock price is NT$2150.00. Phison Electronics's E10 for the quarter that ended in Jun. 2026 was NT$. Phison Electronics's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Phison Electronics was 67.16. The lowest was 8.31. And the median was 15.07.


Phison Electronics  (ROCO:8299) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, 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 P/E is also called PE10.

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

During the past 13 years, the highest Shiller P/E Ratio of Phison Electronics was 67.16. The lowest was 8.31. And the median was 15.07.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Phison Electronics E10 Related Terms


Phison Electronics E10 Historical Data

* Premium members only.

The historical data trend for Phison Electronics's E10 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.

Phison Electronics E10 Chart

Phison Electronics Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
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Phison Electronics Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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ROCO:8299 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, Phison Electronics'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.


Phison Electronics Shiller PE Ratio vs Semiconductors Industry

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

* The bar in red indicates where Phison Electronics's Shiller PE Ratio falls into.


ROCO:8299
85GF Score
Phison Electronics Corp ROCO:8299
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Phison Electronics E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get 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.

For example, Phison Electronics'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)
=110.7664/333.9520*333.9520
=110.766

Current CPI (Jun. 2026) = 333.9520.

Phison Electronics Quarterly Data

per share eps CPI Adj_EPS
201609 7.540 241.428 10.430
201612 7.370 241.432 10.194
201703 6.420 243.801 8.794
201706 8.030 244.955 10.947
201709 8.050 246.819 10.892
201712 6.400 246.524 8.670
201803 4.430 249.554 5.928
201806 6.230 251.989 8.256
201809 7.095 252.439 9.386
201812 3.943 251.233 5.242
201903 4.424 254.202 5.812
201906 3.947 256.143 5.145
201909 8.244 256.759 10.723
201912 6.262 256.974 8.137
202003 9.486 258.115 12.274
202006 5.991 257.797 7.761
202009 9.201 260.280 11.805
202012 18.435 260.474 23.636
202103 8.346 264.877 10.523
202106 11.238 271.696 13.813
202109 11.755 274.310 14.311
202112 8.936 278.802 10.703
202203 10.471 287.504 12.163
202206 8.717 296.311 9.825
202209 5.811 296.808 6.538
202212 1.142 296.797 1.285
202303 1.186 301.836 1.312
202306 2.201 305.109 2.409
202309 4.159 307.789 4.513
202312 9.992 306.746 10.878
202403 11.339 312.332 12.124
202406 10.963 314.175 11.653
202409 3.156 315.301 3.343
202412 10.648 315.605 11.267
202503 5.166 319.799 5.394
202506 3.466 322.561 3.589
202509 10.013 324.800 10.295
202512 21.048 324.054 21.691
202603 65.483 330.213 66.224
202606 110.766 333.952 110.766

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of NT$ mean?
Phison Electronics (ROCO:8299) has a E10 of NT$ as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Phison Electronics and its competitors.
Is Phison Electronics' E10 too high?
Phison Electronics' current E10 is NT$. Overall, Phison Electronics has a GF Score™ of 85/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Phison Electronics' E10 compare to NVDA and AVGO?
Phison Electronics' E10 of NT$ can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Semiconductors company?
A good E10 depends on the Semiconductors industry context. However, E10 should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Phison Electronics and its competitors. Phison Electronics's current E10 is NT$. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Phison Electronics stock overvalued right now?
Based on GuruFocus' analysis, Phison Electronics (ROCO:8299) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$1,882.94, compared to a current price of NT$2,150.00 — trading 14.2% above its estimated fair value. The current E10 is NT$. Phison Electronics' overall GF Score™ is 85/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Phison Electronics (ROCO:8299), the current E10 is NT$ as of Jun. 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 Phison Electronics (ROCO:8299) Overvalued in 2026?

Based on GuruFocus' analysis, Phison Electronics stock appears to be overvalued. The current stock price of NT$2,150.00 is trading 14.2% above its estimated GF Value™ of NT$1,882.94. GuruFocus considers Phison Electronics to be Modestly Overvalued.

Key valuation signals for ROCO:8299:

  • E10: NT$
  • GF Value™: NT$1,882.94 vs. price of NT$2,150.00 (14.2% above fair value)
  • GF Score™: 85/100 with 4 warning signs

No single metric tells the full story. See the ROCO:8299 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Phison Electronics Business Description

Address Fuxing 1st Street, 10F-6, No.251, Zhubei City, Hsinchu County, TWN, 302
Phison Electronics Corp is a Taiwan-based company engaged in designing and manufacturing flash memory controllers and peripheral system applications. Its product portfolio includes Flash memory module products, Controllers, Integrated circuits, and Others. Geographically, the company has a presence in Asia, America, Europe, Australia, and Others in which key revenue is derived from Asia.
85GF Score

Get the complete analysis for ROCO:8299

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$2,150.00
Price
NT$1,882.94
GF Value