CTNGY (Costain Group) 9-Day RSI: N/A (As of Jul. 13, 2026)

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CTNGY Costain Group PLC CTNGY
59 GF Score
Price $3.30
GF Value $1.23
! 5 Warning Signs
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What is Costain Group 9-Day RSI?

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 (2026-07-13), Costain Group's 9-Day RSI is N/A.

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

CTNGY's 9-Day RSI is not ranked *
in the Construction industry.
Industry Median: 46.57
* Ranked among companies with meaningful 9-Day RSI only.

Costain Group  (OTCPK:CTNGY) 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.


Costain Group 9-Day RSI Related Terms


CTNGY vs PWR, FIX, EME: 9-Day RSI Comparison

For the Engineering & Construction subindustry, Costain Group'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.


Costain Group 9-Day RSI vs Construction Industry

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

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


CTNGY
59GF Score
Costain Group PLC CTNGY
9-Day RSI is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Costain Group  (OTCPK:CTNGY) 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.

Is Costain Group (CTNGY) Overvalued in 2026?

Based on GuruFocus' analysis, Costain Group stock appears to be overvalued. The current stock price of $3.30 is trading 168.3% above its estimated GF Value™ of $1.23.

Key valuation signals for CTNGY:

  • 9-Day RSI: N/A
  • GF Value™: $1.23 vs. price of $3.30 (168.3% above fair value)
  • GF Score™: 59/100 with 5 warning signs

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


Costain Group Business Description

Other Exchanges COSTl:UKCOST:UK
Address 70 Saint Mary Axe, Seventh Floor, London, GBR, EC3A 8BE
Costain Group PLC offers solutions and services. It provides engineering and technology solutions and advisory and development, design, management, project delivery, technology integration and asset optimization and support services to highways, nuclear, oil and gas, power, water sectors, rail. The company has two segments Transportation and Natural resources. The transportation segment covers highways, rail, and nuclear markets and the Natural resources segment comprises of water, power and oil and gas markets. Majority of revenue is from Transportation Segment.
59GF Score

Get the complete analysis for CTNGY

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

$3.30
Price
$1.23
GF Value