Ton Dong A (HSTC:GDA) Volatility: 21.81% (As of Jul. 16, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

HSTC:GDA Ton Dong A Corp HSTC:GDA
62 GF Score
Price ₫13,000.00
GF Value ₫16,702.61
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Ton Dong A Volatility?

Ton Dong A HSTC:GDA 62 Volatility is 21.81% as of Jul. 16, 2026. GuruFocus rates HSTC:GDA with a GF Score™ of 62/100 and a GF Value™ of ₫16,702.61 (Modestly Undervalued). The stock has 3 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 (2026-07-16), Ton Dong A's Volatility is 21.81%.


Ton Dong A  (HSTC:GDA) 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.


Ton Dong A Volatility Related Terms


HSTC:GDA vs NUE, STLD, RS: Volatility Comparison

For the Steel subindustry, Ton Dong A'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.


Ton Dong A Volatility vs Steel Industry

For the Steel industry and Basic Materials sector, Ton Dong A's Volatility distribution charts can be found below:

* The bar in red indicates where Ton Dong A's Volatility falls into.


HSTC:GDA
62GF Score
Ton Dong A Corp HSTC:GDA
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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Ton Dong A  (HSTC:GDA) 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 21.81% mean?
Ton Dong A (HSTC:GDA) has a Volatility of 21.81% as of Jul. 16, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Ton Dong A and its competitors.
Is Ton Dong A's Volatility too high?
Ton Dong A's current Volatility is 21.81%. Overall, Ton Dong A has a GF Score™ of 62/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Ton Dong A's Volatility compare to NUE and STLD?
Ton Dong A's Volatility of 21.81% can be compared against companies in the Steel 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 Steel company?
A good Volatility depends on the Steel 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 Ton Dong A and its competitors. Ton Dong A's current Volatility is 21.81%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ton Dong A stock overvalued right now?
Based on GuruFocus' analysis, Ton Dong A (HSTC:GDA) is currently considered Modestly Undervalued. The stock's GF Value™ is ₫16,702.61, compared to a current price of ₫13,000.00 — trading 22.2% below its estimated fair value. The current Volatility is 21.81%. Ton Dong A's overall GF Score™ is 62/100 with 3 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 Ton Dong A (HSTC:GDA), the current Volatility is 21.81% as of Jul. 16, 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 Ton Dong A (HSTC:GDA) Overvalued in 2026?

Based on GuruFocus' analysis, Ton Dong A stock appears to be undervalued. The current stock price of ₫13,000.00 is trading 22.2% below its estimated GF Value™ of ₫16,702.61. GuruFocus considers Ton Dong A to be Modestly Undervalued.

Key valuation signals for HSTC:GDA:

  • Volatility: 21.81%
  • GF Value™: ₫16,702.61 vs. price of ₫13,000.00 (22.2% below fair value)
  • GF Score™: 62/100 with 3 warning signs

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


Ton Dong A Business Description

Address No. 5, Street 5, Song Than 1 Industrial Park, Di An Ward, Di An City, Binh Duong Province, Ho Chi Minh, VNM
Ton Dong A Corp is a company specializing in the production of cold rolled steel, zinc corrugated iron, cold corrugated iron, color corrugated iron, galvanized box steel for industrial and civil construction, transportation infrastructure, and home appliances use. The company operates in the field of manufacturing galvanized steel sheet, the main products are cold rolled steel, black corrugated iron, galvanized steel zinc corrugated iron, aluminum zinc alloy coated steel, cold corrugated iron and painted cold corrugated iron Cold corrugated iron. color cold corrugated iron.
62GF Score

Get the complete analysis for HSTC:GDA

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

₫13,000.00
Price
₫16,702.61
GF Value