JMicron Technology (ROCO:4925) FCF Margin %: -30.34% (As of Dec. 2025)

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ROCO:4925 JMicron Technology Corp ROCO:4925
39 GF Score
Price NT$118.00
GF Value NT$40.40
Valuation Significantly Overvalued
! 5 Warning Signs
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What is JMicron Technology FCF Margin %?

JMicron Technology ROCO:4925 -9.23% 39 FCF Margin % is -30.34% as of Dec. 2025. GuruFocus rates ROCO:4925 with a GF Score™ of 39/100 and a GF Value™ of NT$40.40 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 1,022 Semiconductors companies, JMicron Technology ranks worse than 91.88% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. JMicron Technology's Free Cash Flow for the six months ended in Dec. 2025 was NT$-101.2 Mil. JMicron Technology's Revenue for the six months ended in Dec. 2025 was NT$333.5 Mil. Therefore, JMicron Technology's FCF Margin % for the quarter that ended in Dec. 2025 was -30.34%.

As of today, JMicron Technology's current FCF Yield % is -4.01%.

The historical rank and industry rank for JMicron Technology's FCF Margin % or its related term are showing as below:

ROCO:4925' s FCF Margin % Range Over the Past 10 Years
Min: -59.97   Med: -8.06   Max: 29.62
Current: -59.97

During the past 13 years, the highest FCF Margin % of JMicron Technology was 29.62%. The lowest was -59.97%. And the median was -8.06%.

ROCO:4925's FCF Margin % is ranked worse than
91.88% of 1022 companies
in the Semiconductors industry
Industry Median: -0.875 vs ROCO:4925: -59.97

JMicron Technology FCF Margin % Related Terms

JMicron Technology FCF Margin % Historical Data

* Premium members only.

The historical data trend for JMicron Technology's FCF Margin % 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.

JMicron Technology FCF Margin % Chart

JMicron Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
FCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -0.06 -26.21 7.92 -22.97 -59.97

JMicron Technology Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
FCF Margin % 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 19.76 -10.62 -38.44 -104.22 -30.34

ROCO:4925 vs NVDA, AVGO, MU: FCF Margin % Comparison

For the Semiconductors subindustry, JMicron Technology's FCF Margin %, along with its competitors' market caps and FCF Margin % 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.

JMicron Technology FCF Margin % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, JMicron Technology's FCF Margin % distribution charts can be found below:

* The bar in red indicates where JMicron Technology's FCF Margin % falls into.


ROCO:4925
39GF Score
JMicron Technology Corp ROCO:4925
FCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

JMicron Technology FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

JMicron Technology's FCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=-333.936/556.801
=-59.97 %

JMicron Technology's FCF Margin for the quarter that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-101.194/333.491
=-30.34 %

* 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.

Frequently Asked Questions Learn more about FCF Margin % →
What does a FCF Margin % of -30.34% mean?
JMicron Technology (ROCO:4925) has a FCF Margin % of -30.34% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on JMicron Technology and its competitors. According to the industry distribution chart, JMicron Technology ranks #939 out of 1022 companies in the Semiconductors industry, placing it in the top 91.9%.
Is JMicron Technology's FCF Margin % too high?
JMicron Technology's current FCF Margin % is -30.34%. Based on the distribution chart, JMicron Technology ranks #939 out of 1022 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, JMicron Technology has a GF Score™ of 39/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does JMicron Technology's FCF Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, JMicron Technology ranks #939 out of 1022 companies for FCF Margin %. This places JMicron Technology in the lower half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Semiconductors company?
A good FCF Margin % depends on the Semiconductors industry context. However, FCF Margin % 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on JMicron Technology and its competitors. JMicron Technology's current FCF Margin % is -30.34%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is JMicron Technology stock overvalued right now?
Based on GuruFocus' analysis, JMicron Technology (ROCO:4925) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$40.40, compared to a current price of NT$118.00 — trading 192.1% above its estimated fair value. The current FCF Margin % is -30.34%. JMicron Technology's overall GF Score™ is 39/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For JMicron Technology (ROCO:4925), the current FCF Margin % is -30.34% 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 JMicron Technology (ROCO:4925) Overvalued in 2026?

Based on GuruFocus' analysis, JMicron Technology stock appears to be overvalued. The current stock price of NT$118.00 is trading 192.1% above its estimated GF Value™ of NT$40.40. GuruFocus considers JMicron Technology to be Significantly Overvalued.

Key valuation signals for ROCO:4925:

  • FCF Margin %: -30.34%
  • GF Value™: NT$40.40 vs. price of NT$118.00 (192.1% above fair value)
  • GF Score™: 39/100 with 5 warning signs

No single metric tells the full story. See the ROCO:4925 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

JMicron Technology Business Description

Address No. 13, Chuangxin 1st Road, 1st Floor, Hsinchu Science Park, Hsinchu, TWN
JMicron Technology Corp operates as a fabless IC company that specializes in designing high-speed data and signal interfaces. It offers bridge controller series that offers a range of high-speed and super-speed FireWire and SATAII/III interfaces for data storage applications.
39GF Score

Get the complete analysis for ROCO:4925

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

NT$118.00
Price
NT$40.40
GF Value