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-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past three years. It is calculated as the annualized percentage change in shares outstanding from three years ago to the current year. A positive ratio may indicate share buybacks over the period, while a zero or negative ratio may reflect no repurchases or potential share issuance. Valero Energy's current 3-Year Share Buyback Ratio was 7.00%.
The historical rank and industry rank for Valero Energy's 3-Year Share Buyback Ratio or its related term are showing as below:
MEX:VLO'
s 3-Year Share Buyback Ratio Range Over the Past 10 Years
Min: -25.5 Med: 0 Max: 8.4
Current: 7
During the past 13 years, Valero Energy's highest 3-Year Share Buyback Ratio was 8.40%. The lowest was -25.50%. And the median was 0.00%.
MEX:VLO's 3-Year Share Buyback Ratio is ranked better than 98.83% of 683
companies
in the Oil & Gas industry
Industry Median: -3.5
vs MEX:VLO: 7.00
Valero Energy (MEX:VLO) 3-Year Share Buyback Ratio Explanation
A negative number means the company might be issuing new shares. A positive number indicates that the company is buying back shares.
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.
Valero Energy 3-Year Share Buyback Ratio Related Terms
MEX:VLO vs MPC, PSX, DINO: 3-Year Share Buyback Ratio Comparison
For the Oil & Gas Refining & Marketing subindustry, Valero Energy's 3-Year Share Buyback Ratio, along with its competitors' market caps and 3-Year 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.
Valero Energy 3-Year Share Buyback Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Valero Energy's 3-Year Share Buyback Ratio distribution charts can be found below:
* The bar in red indicates where Valero Energy's 3-Year Share Buyback Ratio falls into.
Valero Energy 3-Year Share Buyback Ratio Calculation
This is the annualized percentage change in shares outstanding from three years ago to the current year. The annualized percentage change is calculated with expontential compound based on the latest four years of annual data on Shares Outstanding (EOP).
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the average dividends per share growth rate.
What does a 3-Year Share Buyback Ratio of 7.00 mean?
Valero Energy (MEX:VLO) has a 3-Year Share Buyback Ratio of 7.00 as of Jun. 2026. The 3-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past three years. It is calculated as the annualized percentage change in shares outstanding from three years ago to the current year. View historical data for Valero Energy and its competitors. According to the industry distribution chart, Valero Energy ranks #8 out of 683 companies in the Oil & Gas industry, placing it in the top 1.2%.
Is Valero Energy's 3-Year Share Buyback Ratio too high?
Valero Energy's current 3-Year Share Buyback Ratio is 7.00. Based on the distribution chart, Valero Energy ranks #8 out of 683 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Valero Energy has a GF Score™ of 52/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Valero Energy's 3-Year Share Buyback Ratio compare to MPC and PSX?
According to the Oil & Gas industry distribution chart, Valero Energy ranks #8 out of 683 companies for 3-Year Share Buyback Ratio. This places Valero Energy in the top 1% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year Share Buyback Ratio for an Oil & Gas company?
A good 3-Year Share Buyback Ratio depends on the Oil & Gas industry context. However, 3-Year 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-Year Share Buyback Ratio mean?
A high 3-Year Share Buyback Ratio can signal that a stock is expensive relative to its fundamentals. The 3-Year Share Buyback Ratio measures the average annual proportion of a company's outstanding shares repurchased over the past three years. It is calculated as the annualized percentage change in shares outstanding from three years ago to the current year. View historical data for Valero Energy and its competitors. Valero Energy's current 3-Year Share Buyback Ratio is 7.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Valero Energy stock overvalued right now?
Based on GuruFocus' analysis, Valero Energy (MEX:VLO) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN2,769.57, compared to a current price of MXN5,810.00 — trading 109.8% above its estimated fair value. The current 3-Year Share Buyback Ratio is 7.00. Valero Energy's overall GF Score™ is 52/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Share Buyback Ratio calculated?
3-Year Share Buyback Ratio is calculated from a company's financial statements. For Valero Energy (MEX:VLO), the current 3-Year Share Buyback Ratio is 7.00 as of Jun. 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 Valero Energy (MEX:VLO) Overvalued in 2026?
Based on GuruFocus' analysis, Valero Energy stock appears to be overvalued.
The current stock price of MXN5,810.00 is trading 109.8% above its estimated GF Value™ of MXN2,769.57.
GuruFocus considers Valero Energy to be Significantly Overvalued.
Key valuation signals for MEX:VLO:
3-Year Share Buyback Ratio: 7.00
GF Value™: MXN2,769.57 vs. price of MXN5,810.00 (109.8% above fair value)
No single metric tells the full story. See the MEX:VLO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Valero Energy is one of the largest independent refiners in the United States. It operates 15 refineries, with a total throughput capacity of 3.2 million barrels a day in the US, Canada, and the United Kingdom. Valero also owns 12 ethanol plants with capacity of 1.6 billion gallons a year and holds a 50% stake in Diamond Green Diesel, which can produce 1.2 billion gallons per year of renewable diesel.
52GF Score
Get the complete analysis for MEX:VLO
3-Year 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
MEX:VLO has been successfully added to your 
