AP Memory Technology (TPE:6531) E10: NT$6.70 (As of Dec. 2025)


TPE:6531 AP Memory Technology Corp TPE:6531
79 GF Score
Price NT$990.00
GF Value NT$588.38
Valuation Significantly Overvalued
! 1 Warning Sign
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What is AP Memory Technology E10?

AP Memory Technology TPE:6531 -10.00% 79 E10 is NT$6.70 as of Dec. 2025. GuruFocus rates TPE:6531 with a GF Score™ of 79/100 and a GF Value™ of NT$588.38 (Significantly Overvalued). The stock has 1 warning sign 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.

AP Memory Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$4.680. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$6.70 for the trailing ten years ended in Dec. 2025.

During the past 12 months, AP Memory Technology's average E10 Growth Rate was 7.00% 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.

As of today (2026-06-28), AP Memory Technology's current stock price is NT$990.00. AP Memory Technology's E10 for the quarter that ended in Dec. 2025 was NT$6.70. AP Memory Technology's Shiller PE Ratio of today is 147.76.

During the past 13 years, the highest Shiller PE Ratio of AP Memory Technology was 177.61. The lowest was 33.93. And the median was 52.04.


AP Memory Technology  (TPE:6531) 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.

AP Memory Technology's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=990.00/6.70
=147.76

* 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.

During the past 13 years, the highest Shiller P/E Ratio of AP Memory Technology was 177.61. The lowest was 33.93. And the median was 52.04.


Be Aware

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


AP Memory Technology E10 Related Terms


AP Memory Technology E10 Historical Data

* Premium members only.

The historical data trend for AP Memory Technology'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.

AP Memory Technology E10 Chart

AP Memory Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 6.26 6.70

AP Memory Technology Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
E10 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 6.26 6.44 6.12 6.43 6.70

TPE:6531 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, AP Memory Technology'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.


AP Memory Technology Shiller PE Ratio vs Semiconductors Industry

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

* The bar in red indicates where AP Memory Technology's Shiller PE Ratio falls into.


TPE:6531
79GF Score
AP Memory Technology Corp TPE:6531
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

AP Memory Technology 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, AP Memory Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=4.68/324.0540*324.0540
=4.680

Current CPI (Dec. 2025) = 324.0540.

AP Memory Technology Quarterly Data

per share eps CPI Adj_EPS
201603 0.953 238.132 1.297
201606 0.429 241.018 0.577
201609 0.043 241.428 0.058
201612 1.443 241.432 1.937
201703 0.162 243.801 0.215
201706 0.686 244.955 0.908
201709 0.460 246.819 0.604
201712 0.365 246.524 0.480
201803 0.260 249.554 0.338
201806 0.625 251.989 0.804
201809 0.430 252.439 0.552
201812 -0.540 251.233 -0.697
201903 -3.120 254.202 -3.977
201906 0.190 256.143 0.240
201909 0.115 256.759 0.145
201912 0.180 256.974 0.227
202003 0.245 258.115 0.308
202006 0.500 257.797 0.629
202009 0.415 260.280 0.517
202012 4.630 260.474 5.760
202103 2.330 264.877 2.851
202106 3.030 271.696 3.614
202109 4.490 274.310 5.304
202112 3.600 278.802 4.184
202203 3.480 287.504 3.922
202206 3.810 296.311 4.167
202209 4.280 296.808 4.673
202212 0.380 296.797 0.415
202303 0.380 301.836 0.408
202306 2.960 305.109 3.144
202309 3.240 307.789 3.411
202312 2.260 306.746 2.388
202403 2.250 312.332 2.334
202406 2.270 314.175 2.341
202409 2.060 315.301 2.117
202412 3.080 315.605 3.162
202503 2.030 319.799 2.057
202506 -3.360 322.561 -3.376
202509 4.320 324.800 4.310
202512 4.680 324.054 4.680

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$6.70 mean?
AP Memory Technology (TPE:6531) has a E10 of NT$6.70 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on AP Memory Technology and its competitors.
Is AP Memory Technology's E10 too high?
AP Memory Technology's current E10 is NT$6.70. Overall, AP Memory Technology has a GF Score™ of 79/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does AP Memory Technology's E10 compare to NVDA and AVGO?
AP Memory Technology's E10 of NT$6.70 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 AP Memory Technology and its competitors. AP Memory Technology's current E10 is NT$6.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AP Memory Technology stock overvalued right now?
Based on GuruFocus' analysis, AP Memory Technology (TPE:6531) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$588.38, compared to a current price of NT$990.00 — trading 68.3% above its estimated fair value. The current E10 is NT$6.70. AP Memory Technology's overall GF Score™ is 79/100 with 1 warning sign 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 AP Memory Technology (TPE:6531), the current E10 is NT$6.70 as of Dec. 2025. 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 AP Memory Technology (TPE:6531) Overvalued in 2026?

Based on GuruFocus' analysis, AP Memory Technology stock appears to be overvalued. The current stock price of NT$990.00 is trading 68.3% above its estimated GF Value™ of NT$588.38. GuruFocus considers AP Memory Technology to be Significantly Overvalued.

Key valuation signals for TPE:6531:

  • E10: NT$6.70
  • GF Value™: NT$588.38 vs. price of NT$990.00 (68.3% above fair value)
  • GF Score™: 79/100 with 1 warning sign

No single metric tells the full story. See the TPE:6531 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


AP Memory Technology Business Description

Address No. 1, Taiyuan 1st Street, 10th Floor-1, Hsinchu County, Zhubei, TWN, 30288
AP Memory Technology Corp is a memory IC design company. The company is engaged in the research, development, production, and sale of various integrated circuit (IC) products, and provides technical services related to the product design, research, and development. The company has two reportable segments: IOT Business Unit, which generates maximum revenue, is involved in the design, sales, and licensing of customized memory solutions; and the AI Business Unit, which is involved in the design, sales, and licensing of heterogeneous integrated chip solutions. Geographically, the company derives its key revenue from China, Taiwan, America, Europe, Singapore, Japan, and other regions.
79GF Score

Get the complete analysis for TPE:6531

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

NT$990.00
Price
NT$588.38
GF Value