NTT (NTTYY) Volatility: 10.58% (As of Jun. 25, 2026)


NTTYY NTT Inc NTTYY
80 GF Score
Price $22.21
GF Value $27.03
Valuation Modestly Undervalued
! 5 Warning Signs
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What is NTT Volatility?

NTT NTTYY -0.85% 80 Volatility is 10.58% as of Jun. 25, 2026. GuruFocus rates NTTYY with a GF Score™ of 80/100 and a GF Value™ of $27.03 (Modestly Undervalued). The stock has 5 warning signs investors should review.

Volatility is a statistical measure of the dispersion of returns for a given security or market index, it shows how the price swings around its mean. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year. In most cases, the higher the volatility, the riskier the security.

As of today (2026-06-25), NTT's Volatility is 10.58%.

NTT  (OTCPK:NTTYY) Volatility Explanation

Volatility is a statistical measure of the dispersion of returns for a given security or market index. It’s often measured as standard deviation or variance of historical returns over a certain period. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year.

Volatility reflects the uncertainty or risk of a security’s value. Generally speaking, a higher volatility suggests a higher risk, because it implies a wider fluctuation around average price. This means the price of the security can change dramatically in either direction within a short period. Conversely, a lower volatility means that the security's price is more steady, which suggests a lower risk.

Another measurement of relative volatility is Beta. Beta is a measure of systematic risk of a security or a portfolio in comparison to the market as a whole. Beta is usually compared to 1. A beta of greater than 1 indicates that the security's price will be more volatile than the market.

NTT Volatility Related Terms

NTTYY vs TMUS, VZ, T: Volatility Comparison

For the Telecom Services subindustry, NTT's Volatility, along with its competitors' market caps and Volatility 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.

NTT Volatility vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, NTT's Volatility distribution charts can be found below:

* The bar in red indicates where NTT's Volatility falls into.


NTTYY
80GF Score
NTT Inc NTTYY
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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NTT  (OTCPK:NTTYY) Volatility Calculation

The annualized volatility is calculated as following:

σA=σM * √12
=√ 1/(n-1) ∑(Ri - R')^2 * √12

Where: σM is the monthly volatility, n is the number of months in the period, Ri is the security's historical monthly returns and R' is the arithmetic mean of monthly returns.

* 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 Volatility →
What does a Volatility of 10.58% mean?
NTT (NTTYY) has a Volatility of 10.58% as of Jun. 25, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on NTT and its competitors.
Is NTT's Volatility too high?
NTT's current Volatility is 10.58%. Overall, NTT has a GF Score™ of 80/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does NTT's Volatility compare to TMUS and VZ?
NTT's Volatility of 10.58% can be compared against companies in the Telecommunication Services industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Volatility for a Telecommunication Services company?
A good Volatility depends on the Telecommunication Services industry context. However, Volatility 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 Volatility mean?
A high Volatility can signal that a stock is expensive relative to its fundamentals. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on NTT and its competitors. NTT's current Volatility is 10.58%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is NTT stock overvalued right now?
Based on GuruFocus' analysis, NTT (NTTYY) is currently considered Modestly Undervalued. The stock's GF Value™ is $27.03, compared to a current price of $22.21 — trading 17.8% below its estimated fair value. The current Volatility is 10.58%. NTT's overall GF Score™ is 80/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Volatility calculated?
Volatility is calculated from a company's financial statements. For NTT (NTTYY), the current Volatility is 10.58% as of Jun. 25, 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 NTT (NTTYY) Overvalued in 2026?

Based on GuruFocus' analysis, NTT stock appears to be undervalued. The current stock price of $22.21 is trading 17.8% below its estimated GF Value™ of $27.03. GuruFocus considers NTT to be Modestly Undervalued.

Key valuation signals for NTTYY:

  • Volatility: 10.58%
  • GF Value™: $27.03 vs. price of $22.21 (17.8% below fair value)
  • GF Score™: 80/100 with 5 warning signs

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

NTT Business Description

Address 5-1, Otemachi 1-Chome, Otemachi First Square, East Tower, Chiyoda-Ku, Tokyo, JPN, 100-8116
NTT owns NTT DoCoMo, the largest wireless operator in Japan, with 53 million mobile handset subscribers. It also owns NTT East and NTT West, the two regional incumbent fixed-line operators in Japan, with about 23.6 million broadband lines (around 72% of which are wholesaled). The firm also provides IT and communications systems integration via NTT Communications and NTT Data.
80GF Score

Get the complete analysis for NTTYY

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

$22.21
Price
$27.03
GF Value