First Sensor AG (STU:SIS) 9-Day RSI: 52.92 (As of Jul. 23, 2026)

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STU:SIS First Sensor AG STU:SIS
59 GF Score
Price €52.00
GF Value €46.28
Valuation Modestly Overvalued
! 4 Warning Signs
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What is First Sensor AG 9-Day RSI?

First Sensor AG STU:SIS 59 9-Day RSI is 52.92 as of Jul. 23, 2026. GuruFocus rates STU:SIS with a GF Score™ of 59/100 and a GF Value™ of €46.28 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 1,033 Semiconductors companies, First Sensor AG ranks worse than 83.35% on this metric.

The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100. Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.

As of today (2026-07-23), First Sensor AG's 9-Day RSI is 52.92.

The industry rank for First Sensor AG's 9-Day RSI or its related term are showing as below:

STU:SIS's 9-Day RSI is ranked worse than
83.35% of 1033 companies
in the Semiconductors industry
Industry Median: 40.57 vs STU:SIS: 52.92

First Sensor AG  (STU:SIS) 9-Day RSI Explanation

The Relative Strength Index (RSI), developed by J. Welles Wilder in his book “New Concepts in Technical Trading Systems.”, is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100.

Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A RSI surpasses the 30 level indicates a bullish sign, when it slides below 70 level, it’s a bearish sign. This level can be adjusted depending on the security’s pattern and the market’s underlying trend. In an uptrend or bullish market, the RSI might range within a higher interval, investors could set the support level higher. If a downtrend or bearish market occurs, investors may need to lower the resistance level.

RSI can also be used in trading techniques to indicate the trading signal, such as Divergences and Swing Rejections. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.


First Sensor AG 9-Day RSI Related Terms


STU:SIS vs AMAT, LRCX, KLAC: 9-Day RSI Comparison

For the Semiconductor Equipment & Materials subindustry, First Sensor AG's 9-Day RSI, along with its competitors' market caps and 9-Day RSI 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.


First Sensor AG 9-Day RSI vs Semiconductors Industry

For the Semiconductors industry and Technology sector, First Sensor AG's 9-Day RSI distribution charts can be found below:

* The bar in red indicates where First Sensor AG's 9-Day RSI falls into.


STU:SIS
59GF Score
First Sensor AG STU:SIS
9-Day RSI is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

First Sensor AG  (STU:SIS) 9-Day RSI Calculation

The formula for calculating RSI is:

RSI=100[ 100 / ( 1 + Average Gain / Average Loss )]

* Note that the formula uses a positive value for the average loss.

* 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 9-Day RSI →
What does a 9-Day RSI of 52.92 mean?
First Sensor AG (STU:SIS) has a 9-Day RSI of 52.92 as of Jul. 23, 2026. According to the industry distribution chart, First Sensor AG ranks #861 out of 1033 companies in the Semiconductors industry, placing it in the top 83.3%.
Is First Sensor AG's 9-Day RSI too high?
First Sensor AG's current 9-Day RSI is 52.92. The Semiconductors industry median 9-Day RSI is 40.57. First Sensor AG's value of 52.92 is 30.4% above this industry median. Based on the distribution chart, First Sensor AG ranks #861 out of 1033 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, First Sensor AG has a GF Score™ of 59/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does First Sensor AG's 9-Day RSI compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, First Sensor AG ranks #861 out of 1033 companies for 9-Day RSI. This places First Sensor AG in the lower half of its industry. The industry median 9-Day RSI is 40.57. First Sensor AG's value of 52.92 is 30.4% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 9-Day RSI for a Semiconductors company?
The median 9-Day RSI among Semiconductors companies is 40.57, based on 1,033 companies in the industry. Companies in the top quartile (top 25%) have a 9-Day RSI significantly above this median, while those in the bottom quartile fall well below. However, 9-Day RSI should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. First Sensor AG's current 9-Day RSI of 52.92 is 30.4% 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 9-Day RSI mean?
A high 9-Day RSI can signal that a stock is expensive relative to its fundamentals. For the Semiconductors industry, the median 9-Day RSI is 40.57 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. First Sensor AG's current 9-Day RSI is 52.92. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is First Sensor AG stock overvalued right now?
Based on GuruFocus' analysis, First Sensor AG (STU:SIS) is currently considered Modestly Overvalued. The stock's GF Value™ is €46.28, compared to a current price of €52.00 — trading 12.4% above its estimated fair value. The current 9-Day RSI is 52.92 and 30.4% above the Semiconductors industry median of 40.57. First Sensor AG's overall GF Score™ is 59/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 9-Day RSI calculated?
9-Day RSI is calculated from a company's financial statements. For First Sensor AG (STU:SIS), the current 9-Day RSI is 52.92 as of Jul. 23, 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 First Sensor AG (STU:SIS) Overvalued in 2026?

Based on GuruFocus' analysis, First Sensor AG stock appears to be overvalued. The current stock price of €52.00 is trading 12.4% above its estimated GF Value™ of €46.28. GuruFocus considers First Sensor AG to be Modestly Overvalued.

Key valuation signals for STU:SIS:

  • 9-Day RSI: 52.92
  • GF Value™: €46.28 vs. price of €52.00 (12.4% above fair value)
  • GF Score™: 59/100 with 4 warning signs
  • Industry Position: 30.4% above the Semiconductors median (#861 of 1033)

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


First Sensor AG Business Description

Other Exchanges SIS:Germany
Address Peter-Behrens-Strasse 15, Berlin, BB, DEU, 12459
First Sensor AG is a Germany-based company. It operates in the sensor production and microsystems technology industries. The company's business focuses mainly on the development, manufacture, and distribution of customer-specific optical and non-optical semiconductor sensors and sensor systems. It also develops and manufactures customized hybrid circuits and products for microsystem engineering and packaging. Its product portfolio consists of optical sensors, radiation sensors, pressure sensors, level sensors, flow sensors, inertial sensors, cameras, and other products.
59GF Score

Get the complete analysis for STU:SIS

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

€52.00
Price
€46.28
GF Value