SEI Medical PCL (BKK:SEI) Volatility: 34.40% (As of Jul. 23, 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

BKK:SEI SEI Medical PCL BKK:SEI
19 GF Score
Price ฿1.78
! 3 Warning Signs
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What is SEI Medical PCL Volatility?

SEI Medical PCL BKK:SEI -1.66% 19 Volatility is 34.40% as of Jul. 23, 2026. GuruFocus rates BKK:SEI with a GF Score™ of 19/100. 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 (2026-07-23), SEI Medical PCL's Volatility is 34.40%.


SEI Medical PCL  (BKK:SEI) 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.


SEI Medical PCL Volatility Related Terms


BKK:SEI vs MCK, CAH, COR: Volatility Comparison

For the Medical Distribution subindustry, SEI Medical PCL'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.


SEI Medical PCL Volatility vs Medical Distribution Industry

For the Medical Distribution industry and Healthcare sector, SEI Medical PCL's Volatility distribution charts can be found below:

* The bar in red indicates where SEI Medical PCL's Volatility falls into.


BKK:SEI
19GF Score
SEI Medical PCL BKK:SEI
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
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SEI Medical PCL  (BKK:SEI) 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 34.40% mean?
SEI Medical PCL (BKK:SEI) has a Volatility of 34.40% as of Jul. 23, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on SEI Medical PCL and its competitors.
Is SEI Medical PCL's Volatility too high?
SEI Medical PCL's current Volatility is 34.40%. Overall, SEI Medical PCL has a GF Score™ of 19/100, reflecting its overall financial health beyond just this single metric.
How does SEI Medical PCL's Volatility compare to MCK and CAH?
SEI Medical PCL's Volatility of 34.40% can be compared against companies in the Medical Distribution 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 Medical Distribution company?
A good Volatility depends on the Medical Distribution 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 SEI Medical PCL and its competitors. SEI Medical PCL's current Volatility is 34.40%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SEI Medical PCL stock overvalued right now?
SEI Medical PCL (BKK:SEI) has a current Volatility of 34.40%. The current Volatility is 34.40%. SEI Medical PCL's overall GF Score™ is 19/100 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 SEI Medical PCL (BKK:SEI), the current Volatility is 34.40% 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.

SEI Medical PCL Business Description

Address Ratchadaphisek Road, No. 546 Ratchada One Building, 7th Floor, Chankasem, Chatuchak District, Bangkok, THA, 10900
SEI Medical PCL operates in the medical equipment and scientific products industry as a distributor and service provider of medical equipment. It has three reportable segments which are the sales of equipment related to scientific instruments and medical equipment, the related service segment and the medical equipment disposal segment. The main geographic which the company operates is Thailand. Key revenue is collected from the Disposal Segment.
19GF Score

Get the complete analysis for BKK:SEI

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

฿1.78
Price