Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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.
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.
BSP:TELB3's 9-Day RSI is ranked better than 69.09% of 385
companies
in the Telecommunication Services industry
Industry Median: 47.98
vs BSP:TELB3: 40.70
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.
Telecomunicacoes Brasileiras 9-Day RSI Related Terms
BSP:TELB3 vs TMUS, VZ, T: 9-Day RSI Comparison
For the Telecom Services subindustry, Telecomunicacoes Brasileiras'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.
Telecomunicacoes Brasileiras 9-Day RSI vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Telecomunicacoes Brasileiras's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Telecomunicacoes Brasileiras's 9-Day RSI falls into.
* 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.
Telecomunicacoes Brasileiras (BSP:TELB3) has a 9-Day RSI of 40.70 as of Jul. 23, 2026. According to the industry distribution chart, Telecomunicacoes Brasileiras ranks #119 out of 385 companies in the Telecommunication Services industry, placing it in the top 30.9%.
Is Telecomunicacoes Brasileiras' 9-Day RSI too high?
Telecomunicacoes Brasileiras' current 9-Day RSI is 40.70. The Telecommunication Services industry median 9-Day RSI is 47.98. Telecomunicacoes Brasileiras' value of 40.70 is 15.2% below this industry median. Based on the distribution chart, Telecomunicacoes Brasileiras ranks #119 out of 385 companies in the Telecommunication Services industry, which is above the industry midpoint. Overall, Telecomunicacoes Brasileiras has a GF Score™ of 63/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Telecomunicacoes Brasileiras' 9-Day RSI compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, Telecomunicacoes Brasileiras ranks #119 out of 385 companies for 9-Day RSI. This puts Telecomunicacoes Brasileiras in the upper half of its industry. The industry median 9-Day RSI is 47.98. Telecomunicacoes Brasileiras' value of 40.70 is 15.2% below 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 Telecommunication Services company?
The median 9-Day RSI among Telecommunication Services companies is 47.98, based on 385 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. Telecomunicacoes Brasileiras's current 9-Day RSI of 40.70 is 15.2% below 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 Telecommunication Services industry, the median 9-Day RSI is 47.98 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Telecomunicacoes Brasileiras's current 9-Day RSI is 40.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Telecomunicacoes Brasileiras stock overvalued right now?
Based on GuruFocus' analysis, Telecomunicacoes Brasileiras (BSP:TELB3) is currently considered Possible Value Trap. The stock's GF Value™ is R$14.86, compared to a current price of R$10.19 — trading 31.4% below its estimated fair value. The current 9-Day RSI is 40.70 and 15.2% below the Telecommunication Services industry median of 47.98. Telecomunicacoes Brasileiras' overall GF Score™ is 63/100 with 5 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 Telecomunicacoes Brasileiras (BSP:TELB3), the current 9-Day RSI is 40.70 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 Telecomunicacoes Brasileiras (BSP:TELB3) Overvalued in 2026?
Based on GuruFocus' analysis, Telecomunicacoes Brasileiras stock appears to be undervalued.
The current stock price of R$10.19 is trading 31.4% below its estimated GF Value™ of R$14.86.
GuruFocus considers Telecomunicacoes Brasileiras to be Possible Value Trap.
Key valuation signals for BSP:TELB3:
9-Day RSI: 40.70
GF Value™: R$14.86 vs. price of R$10.19 (31.4% below fair value)
Industry Position: 15.2% below the Telecommunication Services median (#119 of 385)
No single metric tells the full story. See the BSP:TELB3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Telecomunicacoes Brasileiras SA is a Brazil-based company. Along with its subsidiaries, the firm offers telecommunication services in the areas of fixed line and mobile communication and internet access services. Its product portfolio includes IP (Internet Protocol) Telebras, Telebras Point-to-Point, and Telebras MPLS (Multiprotocol Label Switching) Network. The company also provides broadband services and infrastructure support services.
63GF Score
Get the complete analysis for BSP:TELB3
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
BSP:TELB3 has been successfully added to your 
