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.
Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.
3-Month Share Buyback Ratio measures the proportion of a company's outstanding shares repurchased over the past three months, calculated as the percentage change in shares outstanding from the previous quarter to the current quarter. A positive ratio may indicates share buybacks over the period, while a zero or negative ratio suggests no buybacks or potential share issuance. PetroVietnam Oil's current 3-Month Share Buyback Ratio was 0.00%.
PetroVietnam Oil (HSTC:OIL) 3-Month Share Buyback Ratio Explanation
A positive ratio may indicates share buybacks over the period, while a zero or negative ratio suggests no buybacks or potential share issuance.
Be Aware
Investors usually like share buybacks. But as pointed by Warren Buffett, only if a company buys back shares at the prices below the stock's intrinsic value, it rewards remaining shareholders. If a company buys its overvalued stocks back, it destroys shareholder value.
PetroVietnam Oil 3-Month Share Buyback Ratio Related Terms
HSTC:OIL vs MPC, VLO, PSX: 3-Month Share Buyback Ratio Comparison
For the Oil & Gas Refining & Marketing subindustry, PetroVietnam Oil's 3-Month Share Buyback Ratio, along with its competitors' market caps and 3-Month Share Buyback Ratio 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.
PetroVietnam Oil 3-Month Share Buyback Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, PetroVietnam Oil's 3-Month Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where PetroVietnam Oil's 3-Month Share Buyback Ratio falls into.
* 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.
What does a 3-Month Share Buyback Ratio of 0.00 mean?
PetroVietnam Oil (HSTC:OIL) has a 3-Month Share Buyback Ratio of 0.00 as of Mar. 2026. The 3-Month Share Buyback Ratio measures the proportion of a company's outstanding shares repurchased over the past three months, calculated as the percentage change in shares outstanding from the previous quarter to the current quarter. View historical data for PetroVietnam Oil and its competitors.
Is PetroVietnam Oil's 3-Month Share Buyback Ratio too high?
PetroVietnam Oil's current 3-Month Share Buyback Ratio is 0.00. Overall, PetroVietnam Oil has a GF Score™ of 92/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does PetroVietnam Oil's 3-Month Share Buyback Ratio compare to MPC and VLO?
PetroVietnam Oil's 3-Month Share Buyback Ratio of 0.00 can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Month Share Buyback Ratio for an Oil & Gas company?
A good 3-Month Share Buyback Ratio depends on the Oil & Gas industry context. However, 3-Month Share Buyback Ratio 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 3-Month Share Buyback Ratio mean?
A high 3-Month Share Buyback Ratio can signal that a stock is expensive relative to its fundamentals. The 3-Month Share Buyback Ratio measures the proportion of a company's outstanding shares repurchased over the past three months, calculated as the percentage change in shares outstanding from the previous quarter to the current quarter. View historical data for PetroVietnam Oil and its competitors. PetroVietnam Oil's current 3-Month Share Buyback Ratio is 0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PetroVietnam Oil stock overvalued right now?
Based on GuruFocus' analysis, PetroVietnam Oil (HSTC:OIL) is currently considered Modestly Undervalued. The stock's GF Value™ is ₫17,198.29, compared to a current price of ₫13,600.00 — trading 20.9% below its estimated fair value. The current 3-Month Share Buyback Ratio is 0.00. PetroVietnam Oil's overall GF Score™ is 92/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Month Share Buyback Ratio calculated?
3-Month Share Buyback Ratio is calculated from a company's financial statements. For PetroVietnam Oil (HSTC:OIL), the current 3-Month Share Buyback Ratio is 0.00 as of Mar. 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 PetroVietnam Oil (HSTC:OIL) Overvalued in 2026?
Based on GuruFocus' analysis, PetroVietnam Oil stock appears to be undervalued.
The current stock price of ₫13,600.00 is trading 20.9% below its estimated GF Value™ of ₫17,198.29.
GuruFocus considers PetroVietnam Oil to be Modestly Undervalued.
Key valuation signals for HSTC:OIL:
3-Month Share Buyback Ratio: 0.00
GF Value™: ₫17,198.29 vs. price of ₫13,600.00 (20.9% below fair value)
No single metric tells the full story. See the HSTC:OIL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
PetroVietnam Oil Corp is engaged in the downstream sector of the oil and gas industry, especially in importing & exporting, trading crude oil & blending, storing, and distributing oil products.
92GF Score
Get the complete analysis for HSTC:OIL
3-Month Share Buyback Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
HSTC:OIL has been successfully added to your 
