AltaGasTSX:ALA +1.07%77 PEG Ratio is 4.08 as of Jul. 04, 2026, which is 13% below its 10-year median of 4.68. GuruFocus rates TSX:ALA with a GF Score™ of 77/100 and a GF Value™ of C$33.08 (Significantly Overvalued). The stock has 15 warning signs investors should review. Among 303 Oil & Gas companies, AltaGas ranks worse than 86.14% on this metric.
PE Ratio without NRI / 5-Year EBITDA Growth Rate*
PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The growth rate we use is the 5-Year EBITDA growth rate. As of today, AltaGas's PE Ratio without NRI is 31.86. AltaGas's 5-Year EBITDA growth rate is 7.80%. Therefore, AltaGas's PEG Ratio for today is 4.08.
* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
The historical rank and industry rank for AltaGas's PEG Ratio or its related term are showing as below:
TSX:ALA'
s PEG Ratio Range Over the Past 10 Years
Min: 1.13 Med: 4.68 Max: 102.48
Current: 4.08
During the past 13 years, AltaGas's highest PEG Ratio was 102.48. The lowest was 1.13. And the median was 4.68.
TSX:ALA's PEG Ratio is ranked worse than 86.14% of 303
companies
in the Oil & Gas industry
Industry Median: 0.96
vs TSX:ALA: 4.08
Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.
AltaGas (TSX:ALA) PEG Ratio Explanation
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.
AltaGas PEG Ratio Related Terms
AltaGas PEG Ratio Historical Data
* Premium members only.
The historical data trend for AltaGas's PEG Ratio can be seen below:
* 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.
For the Oil & Gas Midstream subindustry, AltaGas's PEG Ratio, along with its competitors' market caps and PEG 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.
AltaGas PEG Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, AltaGas's PEG Ratio distribution charts can be found below:
* The bar in red indicates where AltaGas's PEG 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.
* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.
AltaGas (TSX:ALA) has a PEG Ratio of 4.08 as of Jul. 04, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on AltaGas and its competitors. This is 13% below median its historical median of 4.68. Over the past decade, AltaGas' PEG Ratio has ranged from 1.13 to 102.48. According to the industry distribution chart, AltaGas ranks #261 out of 303 companies in the Oil & Gas industry, placing it in the top 86.1%.
Is AltaGas' PEG Ratio too high?
AltaGas' current PEG Ratio of 4.08 is 13% below median its 10-year median of 4.68. Over the past 10 years, this metric has ranged from a low of 1.13 to a high of 102.48. The Oil & Gas industry median PEG Ratio is 0.96. AltaGas' value of 4.08 is 325% above this industry median. Based on the distribution chart, AltaGas ranks #261 out of 303 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, AltaGas has a GF Score™ of 77/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does AltaGas' PEG Ratio compare to WMB and EPD?
According to the Oil & Gas industry distribution chart, AltaGas ranks #261 out of 303 companies for PEG Ratio. This places AltaGas in the lower half of its industry. The industry median PEG Ratio is 0.96. AltaGas' value of 4.08 is 325% above this benchmark. Historically, AltaGas' own PEG Ratio has ranged from 1.13 to 102.48 over the past decade. While the company's 10-year median is 4.68 vs. the industry median of 0.96, AltaGas has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PEG Ratio for an Oil & Gas company?
The median PEG Ratio among Oil & Gas companies is 0.96, based on 303 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. AltaGas's current PEG Ratio of 4.08 is 325% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on AltaGas and its competitors. For the Oil & Gas industry, the median PEG Ratio is 0.96 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. AltaGas's current PEG Ratio is 4.08, which is 13% below median its own 10-year median of 4.68. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AltaGas stock overvalued right now?
Based on GuruFocus' analysis, AltaGas (TSX:ALA) is currently considered Significantly Overvalued. The stock's GF Value™ is C$33.08, compared to a current price of C$52.69 — trading 59.3% above its estimated fair value. The current PEG Ratio is 4.08, which is 13% below median its 10-year median of 4.68 and 325% above the Oil & Gas industry median of 0.96. AltaGas' overall GF Score™ is 77/100 with 15 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For AltaGas (TSX:ALA), the current PEG Ratio is 4.08 as of Jul. 04, 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 AltaGas (TSX:ALA) Overvalued in 2026?
Based on GuruFocus' analysis, AltaGas stock appears to be overvalued.
The current stock price of C$52.69 is trading 59.3% above its estimated GF Value™ of C$33.08.
GuruFocus considers AltaGas to be Significantly Overvalued.
Key valuation signals for TSX:ALA:
PEG Ratio: 4.08 (13% below median its 10-year median of 4.68)
GF Value™: C$33.08 vs. price of C$52.69 (59.3% above fair value)
Industry Position: 325% above the Oil & Gas median (#261 of 303)
No single metric tells the full story. See the TSX:ALA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
AltaGas Ltd is a North American energy infrastructure company that connects customers and markets to energy sources. AltaGas has three reporting segments: Utilities, Midstream, and Corporate/Other. The majority of its revenue is generated from the Midstream segment, which operates a North American energy platform that moves natural gas and LPGs from the wellhead to markets. It exports propane and butane to Asia through its LPG terminals, and runs natural gas gathering, processing, fractionation, liquids handling, and storage infrastructure. The segment also includes its natural gas and natural gas liquids (NGLs) marketing business, domestic logistics, trucking and rail terminals, and liquid and natural gas storage capability. Geographically, the firm derives its key revenue from the U.S.
77GF Score
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