Tetra Tech (FRA:TT6) 9-Day RSI: 69.23 (As of Jul. 21, 2026)

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Director of Data and Quant Analytics at GuruFocus
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Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

FRA:TT6 Tetra Tech Inc FRA:TT6
81 GF Score
Price €27.30
GF Value €30.20
! 1 Warning Sign
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What is Tetra Tech 9-Day RSI?

Tetra Tech FRA:TT6 +0.07% 81 9-Day RSI is 69.23 as of Jul. 21, 2026. GuruFocus rates FRA:TT6 with a GF Score™ of 81/100 and a GF Value™ of €30.20. The stock has 1 warning sign investors should review. Among 1,886 Construction companies, Tetra Tech ranks worse than 87.33% 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 (2026-07-21), Tetra Tech's 9-Day RSI is 69.23.

The industry rank for Tetra Tech's 9-Day RSI or its related term are showing as below:

FRA:TT6's 9-Day RSI is ranked worse than
87.33% of 1886 companies
in the Construction industry
Industry Median: 43.235 vs FRA:TT6: 69.23

Tetra Tech  (FRA:TT6) 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.


Tetra Tech 9-Day RSI Related Terms


FRA:TT6 vs FLR, MYRG, ECG: 9-Day RSI Comparison

For the Engineering & Construction subindustry, Tetra Tech'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.


Tetra Tech 9-Day RSI vs Construction Industry

For the Construction industry and Industrials sector, Tetra Tech's 9-Day RSI distribution charts can be found below:

* The bar in red indicates where Tetra Tech's 9-Day RSI falls into.


FRA:TT6
81GF Score
Tetra Tech Inc FRA:TT6
9-Day RSI is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tetra Tech  (FRA:TT6) 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 69.23 mean?
Tetra Tech (FRA:TT6) has a 9-Day RSI of 69.23 as of Jul. 21, 2026. According to the industry distribution chart, Tetra Tech ranks #1647 out of 1886 companies in the Construction industry, placing it in the top 87.3%.
Is Tetra Tech's 9-Day RSI too high?
Tetra Tech's current 9-Day RSI is 69.23. The Construction industry median 9-Day RSI is 43.24. Tetra Tech's value of 69.23 is 60.1% above this industry median. Based on the distribution chart, Tetra Tech ranks #1647 out of 1886 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Tetra Tech has a GF Score™ of 81/100, reflecting its overall financial health beyond just this single metric.
How does Tetra Tech's 9-Day RSI compare to FLR and MYRG?
According to the Construction industry distribution chart, Tetra Tech ranks #1647 out of 1886 companies for 9-Day RSI. This places Tetra Tech in the lower half of its industry. The industry median 9-Day RSI is 43.24. Tetra Tech's value of 69.23 is 60.1% 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 Construction company?
The median 9-Day RSI among Construction companies is 43.24, based on 1,886 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. Tetra Tech's current 9-Day RSI of 69.23 is 60.1% 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 Construction industry, the median 9-Day RSI is 43.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tetra Tech's current 9-Day RSI is 69.23. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tetra Tech stock overvalued right now?
Tetra Tech (FRA:TT6) has a current 9-Day RSI of 69.23. The stock's GF Value™ is €30.20, compared to a current price of €27.30 — trading 9.6% below its estimated fair value. The current 9-Day RSI is 69.23 and 60.1% above the Construction industry median of 43.24. Tetra Tech's overall GF Score™ is 81/100 with 1 warning sign 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 Tetra Tech (FRA:TT6), the current 9-Day RSI is 69.23 as of Jul. 21, 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 Tetra Tech (FRA:TT6) Overvalued in 2026?

Based on GuruFocus' analysis, Tetra Tech stock appears to be undervalued. The current stock price of €27.30 is trading 9.6% below its estimated GF Value™ of €30.20.

Key valuation signals for FRA:TT6:

  • 9-Day RSI: 69.23
  • GF Value™: €30.20 vs. price of €27.30 (9.6% below fair value)
  • GF Score™: 81/100 with 1 warning sign
  • Industry Position: 60.1% above the Construction median (#1647 of 1886)

No single metric tells the full story. See the FRA:TT6 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tetra Tech Business Description

Address 3475 East Foothill Boulevard, Pasadena, CA, USA, 91107-­6024
Tetra Tech Inc provides consulting and engineering services for environmental, infrastructure, resource management, energy, and international development markets. It specializes in providing water-related services for public and private clients. It designs infrastructure, facilities, and other structures with complex plans and resource management. it has two reportable segments. Its Government Services Group (GSG) segment includes activities with U.S. government clients (federal, state and local) and activities with development agencies world-wide. Commercial/International Services Group (CIG) segment, which derives maximum revenue, includes activities with U.S. commercial clients and international clients other than development agencies.
81GF Score

Get the complete analysis for FRA:TT6

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

€27.30
Price
€30.20
GF Value