FUN (Six Flags Entertainment) Cyclically Adjusted Book per Share: $-3.69 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

FUN Six Flags Entertainment Corp FUN
55 GF Score
Price $16.77
GF Value $31.46
Valuation Possible Value Trap
! 8 Warning Signs
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What is Six Flags Entertainment Cyclically Adjusted Book per Share?

Six Flags Entertainment FUN -0.12% 55 Cyclically Adjusted Book per Share is $-3.69 as of Jun. 2026. GuruFocus rates FUN with a GF Score™ of 55/100 and a GF Value™ of $31.46 (Possible Value Trap). The stock has 8 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Six Flags Entertainment's adjusted book value per share for the three months ended in Jun. 2026 was $1.121. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $-3.69 for the trailing ten years ended in Jun. 2026.

During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -6.20% per year. 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Six Flags Entertainment was 19.80% per year. The lowest was -68.70% per year. And the median was -7.05% per year.

As of today (2026-08-21), Six Flags Entertainment's current stock price is $16.77. Six Flags Entertainment's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $-3.69. Six Flags Entertainment's Cyclically Adjusted PB Ratio of today is .

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Six Flags Entertainment was 1296.25. The lowest was 15.72. And the median was 46.05.


Six Flags Entertainment  (NYSE:FUN) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Six Flags Entertainment was 1296.25. The lowest was 15.72. And the median was 46.05.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Six Flags Entertainment Cyclically Adjusted Book per Share Related Terms


Six Flags Entertainment Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Six Flags Entertainment's Cyclically Adjusted Book per Share 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.

Six Flags Entertainment Cyclically Adjusted Book per Share Chart

Six Flags Entertainment Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only -1.56 -3.11 -4.77 -4.69 -3.72

Six Flags Entertainment Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -3.88 -3.83 -3.72 -3.70 -3.69

FUN vs PRKS, LUCK, PTON: Cyclically Adjusted Book per Share Comparison

For the Leisure subindustry, Six Flags Entertainment's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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.


Six Flags Entertainment Cyclically Adjusted PB Ratio vs Travel & Leisure Industry

For the Travel & Leisure industry and Consumer Cyclical sector, Six Flags Entertainment's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Six Flags Entertainment's Cyclically Adjusted PB Ratio falls into.


FUN
55GF Score
Six Flags Entertainment Corp FUN
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Six Flags Entertainment Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Six Flags Entertainment's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.121/333.9520*333.9520
=1.121

Current CPI (Jun. 2026) = 333.9520.

Six Flags Entertainment Quarterly Data

Book Value per Share CPI Adj_Book
201609 1.880 241.428 2.600
201612 1.077 241.432 1.490
201703 -0.846 243.801 -1.159
201706 -1.078 244.955 -1.470
201709 1.339 246.819 1.812
201712 1.472 246.524 1.994
201803 -0.903 249.554 -1.208
201806 -1.241 251.989 -1.645
201809 1.624 252.439 2.148
201812 0.573 251.233 0.762
201903 -1.937 254.202 -2.545
201906 -1.770 256.143 -2.308
201909 0.755 256.759 0.982
201912 -0.176 256.974 -0.229
202003 -4.836 258.115 -6.257
202006 -7.263 257.797 -9.409
202009 -9.723 260.280 -12.475
202012 -11.752 260.474 -15.067
202103 -13.736 264.877 -17.318
202106 -14.809 271.696 -18.202
202109 -12.010 274.310 -14.621
202112 -12.286 278.802 -14.716
202203 -13.807 287.504 -16.038
202206 -12.724 296.311 -14.340
202209 -8.657 296.808 -9.740
202212 -11.255 296.797 -12.664
202303 -15.402 301.836 -17.041
202306 -14.858 305.109 -16.263
202309 -11.090 307.789 -12.033
202312 -11.428 306.746 -12.442
202403 -14.261 312.332 -15.248
202406 -13.311 314.175 -14.149
202409 23.352 315.301 24.733
202412 20.347 315.605 21.530
202503 18.143 319.799 18.946
202506 17.528 322.561 18.147
202509 6.067 324.800 6.238
202512 5.406 324.054 5.571
202603 2.738 330.213 2.769
202606 1.121 333.952 1.121

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of $-3.69 mean?
Six Flags Entertainment (FUN) has a Cyclically Adjusted Book per Share of $-3.69 as of Jun. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Six Flags Entertainment and its competitors.
Is Six Flags Entertainment's Cyclically Adjusted Book per Share too high?
Six Flags Entertainment's current Cyclically Adjusted Book per Share is $-3.69. Overall, Six Flags Entertainment has a GF Score™ of 55/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Six Flags Entertainment's Cyclically Adjusted Book per Share compare to PRKS and LUCK?
Six Flags Entertainment's Cyclically Adjusted Book per Share of $-3.69 can be compared against companies in the Travel & Leisure industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Travel & Leisure company?
A good Cyclically Adjusted Book per Share depends on the Travel & Leisure industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Six Flags Entertainment and its competitors. Six Flags Entertainment's current Cyclically Adjusted Book per Share is $-3.69. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Six Flags Entertainment stock overvalued right now?
Based on GuruFocus' analysis, Six Flags Entertainment (FUN) is currently considered Possible Value Trap. The stock's GF Value™ is $31.46, compared to a current price of $16.77 — trading 46.7% below its estimated fair value. The current Cyclically Adjusted Book per Share is $-3.69. Six Flags Entertainment's overall GF Score™ is 55/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Six Flags Entertainment (FUN), the current Cyclically Adjusted Book per Share is $-3.69 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 Six Flags Entertainment (FUN) Overvalued in 2026?

Based on GuruFocus' analysis, Six Flags Entertainment stock appears to be undervalued. The current stock price of $16.77 is trading 46.7% below its estimated GF Value™ of $31.46. GuruFocus considers Six Flags Entertainment to be Possible Value Trap.

Key valuation signals for FUN:

  • Cyclically Adjusted Book per Share: $-3.69
  • GF Value™: $31.46 vs. price of $16.77 (46.7% below fair value)
  • GF Score™: 55/100 with 8 warning signs

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


Six Flags Entertainment Business Description

Other Exchanges 6FE0:Germany
Address 8701 Red Oak Boulevard, Charlotte, NC, USA, 28217
Six Flags Entertainment Corp is North America's regional amusement resort operator with approximately 27 amusement parks, around 15 separately gated water parks, and nine resort properties across the U.S., Canada, and Mexico. It provides coasters, themed rides, thrilling water parks, resorts, and a portfolio of beloved intellectual properties such as Looney Tunes, DC Comics, and PEANUTS. The parks are family-oriented, with recreational facilities for people of all ages, and provide clean and attractive environments with exciting rides and immersive entertainment. The Company generates revenue from sales of admission to the amusement parks and water parks, from purchases of food, merchandise and games both inside and outside the parks, from the sale of accommodations and other extra-charge.
55GF Score

Get the complete analysis for FUN

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$16.77
Price
$31.46
GF Value