Talen Energy (MIL:1TLN) GF Value Rank: 0 (As of Aug. 24, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
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.

MIL:1TLN Talen Energy Corp MIL:1TLN
7 GF Score
Price €310.00
GF Value €527.00
Valuation Possible Value Trap
! 7 Warning Signs
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What is Talen Energy GF Value Rank?

Talen Energy has the GF Value Rank of 0.

GF Value Rank evaluates the exclusive GuruFocus valuation and performance of a stock, rated on a scale from 1 to 10. It is determined by the price-to-GF-Value (P/GF Value) ratio, a proprietary metric calculated based on historical multiples along with an adjustment factor based on a company's past returns and growth and future estimates of the business' performance.

GuruFocus found that for valuation, we cannot simply give stocks a better GF Value rank simply because they have a lower P/GF Value ratio. Backtesting shows that over the long term, the two worst-performing groups are the most expensive group (with the highest P/GF Value ratio) and the least expensive group (with the lowest P/GF Value ratio).

We can understand why the most expensive group underperforms. We were initially puzzled by the underperformance of the least expensive group, but we realized there is a reason why some stocks are super cheap. If they look too undervalued, it is often because the businesses behind them are poor quality. The market realized this and gave them low valuations. In a way, the market is efficient.

After multiple backtesting analyses, we granted the stocks in third-cheapest percentile the highest GF Value rank, as they have performed the best over a full market cycle. Stock performance is actually not as sensitive to valuation as it is to growth and profitability. On average, the companies in the 20%-50% valuation groups have similar performances. Therefore, we should avoid the most expensive and the least expensive stocks. We can be more tolerant of valuation.

A higher score indicates a stock with a relatively low valuation and substantial potential for outperformance. Conversely, a lower score often reflects stocks that are either highly overvalued or deeply undervalued, both of which tend to underperform.

Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.


Talen Energy GF Value Rank Related Terms

MIL:1TLN
7GF Score
Talen Energy Corp MIL:1TLN
GF Value Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Is Talen Energy (MIL:1TLN) Overvalued in 2026?

Based on GuruFocus' analysis, Talen Energy stock appears to be undervalued. The current stock price of €310.00 is trading 41.2% below its estimated GF Value™ of €527.00. GuruFocus considers Talen Energy to be Possible Value Trap.

Key valuation signals for MIL:1TLN:

  • GF Value Rank: 0
  • GF Value™: €527.00 vs. price of €310.00 (41.2% below fair value)
  • GF Score™: 7/100 with 7 warning signs

No single metric tells the full story. See the MIL:1TLN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Talen Energy Business Description

Other Exchanges TLN:USA
Address 2929 Allen Parkway, Suite 2200, Houston, TX, USA, 77019
Talen Energy Corp is an independent power producer and energy infrastructure company based in the United States. It owns and operates several gigawatts of power infrastructure in the United States, including 2.2GW of nuclear power and a dispatchable fossil fleet. The company produces and sells electricity, capacity, and ancillary services into wholesale U.S. power markets, with its generation fleet principally located in the Mid-Atlantic, Ohio, and Montana. Talen's operating segments are: PJM and Others. The PJM segment, which generates maximum revenue, is engaged in electricity generation, marketing activities, and commodity risk and fuel management within the PJM market and is comprised of Susquehanna and Talen's natural gas and coal generation facilities in PJM.
7GF Score

Get the complete analysis for MIL:1TLN

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

€310.00
Price
€527.00
GF Value