TAC (TransAlta) 1-Year Sharpe Ratio: 0.96 (As of Jun. 24, 2026)


TAC TransAlta Corp TAC
51 GF Score
Price $13.69
GF Value $6.86
Valuation Significantly Overvalued
! 6 Warning Signs
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What is TransAlta 1-Year Sharpe Ratio?

TransAlta TAC 51 1-Year Sharpe Ratio is 0.96 as of Jun. 24, 2026. GuruFocus rates TAC with a GF Score™ of 51/100 and a GF Value™ of $6.86 (Significantly Overvalued). The stock has 6 warning signs investors should review.

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-06-24), TransAlta's 1-Year Sharpe Ratio is 0.96.

TransAlta  (NYSE:TAC) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.

TransAlta 1-Year Sharpe Ratio Related Terms

TAC vs CEG, VST, NRG: 1-Year Sharpe Ratio Comparison

For the Utilities - Independent Power Producers subindustry, TransAlta's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe 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.

TransAlta 1-Year Sharpe Ratio vs Utilities - Independent Power Producers Industry

For the Utilities - Independent Power Producers industry and Utilities sector, TransAlta's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where TransAlta's 1-Year Sharpe Ratio falls into.


TAC
51GF Score
TransAlta Corp TAC
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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TransAlta 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of 0.96 mean?
TransAlta (TAC) has a 1-Year Sharpe Ratio of 0.96 as of Jun. 24, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for TransAlta and its competitors.
Is TransAlta's 1-Year Sharpe Ratio too high?
TransAlta's current 1-Year Sharpe Ratio is 0.96. Overall, TransAlta has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TransAlta's 1-Year Sharpe Ratio compare to CEG and VST?
TransAlta's 1-Year Sharpe Ratio of 0.96 can be compared against companies in the Utilities - Independent Power Producers industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 1-Year Sharpe Ratio for an Utilities - Independent Power Producers company?
A good 1-Year Sharpe Ratio depends on the Utilities - Independent Power Producers industry context. However, 1-Year Sharpe 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 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for TransAlta and its competitors. TransAlta's current 1-Year Sharpe Ratio is 0.96. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TransAlta stock overvalued right now?
Based on GuruFocus' analysis, TransAlta (TAC) is currently considered Significantly Overvalued. The stock's GF Value™ is $6.86, compared to a current price of $13.69 — trading 99.6% above its estimated fair value. The current 1-Year Sharpe Ratio is 0.96. TransAlta's overall GF Score™ is 51/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For TransAlta (TAC), the current 1-Year Sharpe Ratio is 0.96 as of Jun. 24, 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 TransAlta (TAC) Overvalued in 2026?

Based on GuruFocus' analysis, TransAlta stock appears to be overvalued. The current stock price of $13.69 is trading 99.6% above its estimated GF Value™ of $6.86. GuruFocus considers TransAlta to be Significantly Overvalued.

Key valuation signals for TAC:

  • 1-Year Sharpe Ratio: 0.96
  • GF Value™: $6.86 vs. price of $13.69 (99.6% above fair value)
  • GF Score™: 51/100 with 6 warning signs

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

TransAlta Business Description

Address 1100 1st Street SE, TransAlta Place, Suite 1400, Calgary, AB, CAN, T2G 1B1
TransAlta Corp is an independent power producer based in Alberta, Canada. The company operates a diverse electrical power generation assets in Canada, the United States, and Western Australia. The company has reportable segments namely, Hydro, Wind & Solar, Gas, Energy Transition segment and Corporate Segment. The company generates the majority of its revenue from the gas segment.
51GF Score

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

$13.69
Price
$6.86
GF Value