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.
Talen EnergyTLN +2.78%52 Market Cap is $16,660 Mil as of Aug. 09, 2026. GuruFocus rates TLN with a GF Score™ of 52/100 and a GF Value™ of $519.90 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 486 Utilities - Independent Power Producers companies, Talen Energy ranks better than 95.88% on this metric.
Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Talen Energy's share price for the quarter that ended in Jun. 2026 was $384.26. Talen Energy's Shares Outstanding (EOP) for the quarter that ended in Jun. 2026 was 46 Mil. Therefore, Talen Energy's market cap for the quarter that ended in Jun. 2026 was $17,639 Mil.
Talen Energy's quarterly market cap
declined
from Dec. 2025 ($17,126 Mil) to Mar. 2026 ($14,491 Mil) but then
increased
from Mar. 2026 ($14,491 Mil) to Jun. 2026 ($17,639 Mil).
Talen Energy's annual market cap
increased
from Dec. 2023 ($3,778 Mil) to Dec. 2024 ($9,260 Mil) and
increased
from Dec. 2024 ($9,260 Mil) to Dec. 2025 ($17,126 Mil).
Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Talen Energy's Enterprise Value for Today is $26,024 Mil.
Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the companys debt. The real price you pay is the Enterprise Value.
Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.
Talen Energy Market Cap Related Terms
Talen Energy Market Cap Historical Data
* Premium members only.
The historical data trend for Talen Energy's Market Cap 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 Utilities - Independent Power Producers subindustry, Talen Energy's Market Cap, along with its competitors' market caps and Market Cap 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.
Talen Energy Market Cap vs Utilities - Independent Power Producers Industry
For the Utilities - Independent Power Producers industry and Utilities sector, Talen Energy's Market Cap distribution charts can be found below:
* The bar in red indicates where Talen Energy's Market Cap falls into.
Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.
Talen Energy's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
Talen Energy (TLN) has a Market Cap of $16,660 Mil as of Aug. 09, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Talen Energy and its competitors. According to the industry distribution chart, Talen Energy ranks #20 out of 486 companies in the Utilities - Independent Power Producers industry, placing it in the top 4.1%.
Is Talen Energy's Market Cap too high?
Talen Energy's current Market Cap is $16,660 Mil. The Utilities - Independent Power Producers industry median Market Cap is 205.61. Talen Energy's value of $16,660 Mil is 8002.8% above this industry median. Based on the distribution chart, Talen Energy ranks #20 out of 486 companies in the Utilities - Independent Power Producers industry, which is in the top quartile — a strong position relative to peers. Overall, Talen Energy has a GF Score™ of 52/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Talen Energy's Market Cap compare to OKLO and NRG?
According to the Utilities - Independent Power Producers industry distribution chart, Talen Energy ranks #20 out of 486 companies for Market Cap. This places Talen Energy in the top 4% of its industry — outperforming the majority of peers. The industry median Market Cap is 205.61. Talen Energy's value of $16,660 Mil is 8002.8% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for an Utilities - Independent Power Producers company?
The median Market Cap among Utilities - Independent Power Producers companies is 205.61, based on 486 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Talen Energy's current Market Cap of $16,660 Mil is 8002.8% 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 Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Talen Energy and its competitors. For the Utilities - Independent Power Producers industry, the median Market Cap is 205.61 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Talen Energy's current Market Cap is $16,660 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Talen Energy stock overvalued right now?
Based on GuruFocus' analysis, Talen Energy (TLN) is currently considered Possible Value Trap. The stock's GF Value™ is $519.90, compared to a current price of $347.71 — trading 33.1% below its estimated fair value. The current Market Cap is $16,660 Mil and 8002.8% above the Utilities - Independent Power Producers industry median of 205.61. Talen Energy's overall GF Score™ is 52/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Talen Energy (TLN), the current Market Cap is $16,660 Mil as of Aug. 09, 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 Talen Energy (TLN) Overvalued in 2026?
Based on GuruFocus' analysis, Talen Energy stock appears to be undervalued.
The current stock price of $347.71 is trading 33.1% below its estimated GF Value™ of $519.90.
GuruFocus considers Talen Energy to be Possible Value Trap.
Key valuation signals for TLN:
Market Cap: $16,660 Mil
GF Value™: $519.90 vs. price of $347.71 (33.1% below fair value)
Industry Position: 8002.8% above the Utilities - Independent Power Producers median (#20 of 486)
No single metric tells the full story. See the TLN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
52GF Score
Get the complete analysis for TLN
Market Cap is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TLN has been successfully added to your 
