PTIX (Protagenic Therapeutics) Cyclically Adjusted FCF per Share: $-9.19 (As of Dec. 2025)

Protagenic Therapeutics  (OTCPK:PTIX) Cyclically Adjusted FCF per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted FCF per Share may underestimate the company's free cash flow. Cyclically Adjusted Price-to-FCF can seem to be too high even the actual Price-to-Free-Cash-Flow is low.

For the Cyclically Adjusted Price-to-FCF, the free cash flow per share of the past 10 years are inflation-adjusted and averaged. The result is used for P/FCF calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted Price-to-FCF is also called CAPFCF 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 Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted free cash flow per share of a company over the past 10 years.

Be Aware

Cyclically Adjusted Price-to-FCF works better for cyclical companies. It gives you a better idea on the company's real free cash flow value.

Protagenic Therapeutics Cyclically Adjusted FCF per Share Related Terms

The historical data trend for Protagenic Therapeutics's Cyclically Adjusted FCF 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.

Protagenic Therapeutics Cyclically Adjusted FCF per Share Chart

Protagenic Therapeutics Annual Data
	Trend	Jun15	Dec16	Dec17	Dec18	Dec19	Dec20	Dec21	Dec22	Dec23	Dec24
Cyclically Adjusted FCF per Share		Get a 7-Day Free Trial					-6.84	-8.00	-8.22	-8.94	-9.60

Protagenic Therapeutics Quarterly Data
	Mar21	Jun21	Sep21	Dec21	Mar22	Jun22	Sep22	Dec22	Mar23	Jun23	Sep23	Dec23	Mar24	Jun24	Sep24	Dec24	Mar25	Jun25	Sep25	Dec25
Cyclically Adjusted FCF per Share	Get a 7-Day Free Trial															-9.60	-9.68	-9.53	-9.43	-9.19

PTIX vs CERO, CYTOF, CARM: Cyclically Adjusted FCF per Share Comparison

For the Biotechnology subindustry, Protagenic Therapeutics's Cyclically Adjusted Price-to-FCF, along with its competitors' market caps and Cyclically Adjusted Price-to-FCF 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.

Protagenic Therapeutics Cyclically Adjusted Price-to-FCF vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Protagenic Therapeutics's Cyclically Adjusted Price-to-FCF distribution charts can be found below:

* The bar in red indicates where Protagenic Therapeutics's Cyclically Adjusted Price-to-FCF falls into.

Protagenic Therapeutics Cyclically Adjusted FCF 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 FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.

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

Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow 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 FCF per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the free cash flow per share from 2001 through 2010.

We adjusted the 2001 free cash flow per share data with the total inflation from 2001 through 2010 to the equivalent free cash flow in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's free cash flow is $1 a share in 2001, then the 2001's equivalent free cash flow in 2010 is $1.4 a share. If Wal-Mart's free cash flow is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 free cash flow in 2010 is $1.35. So on and so forth, you get the equivalent free cash flow per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted FCF 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, Protagenic Therapeutics's adjusted Free Cash Flow per Share data for the three months ended in Dec. 2025 was:

Current CPI (Dec. 2025) = 324.0540.

Protagenic Therapeutics Quarterly Data

Add all the adjusted free cash flow per share together and divide 10 will get our Cyclically Adjusted FCF per Share.

Protagenic Therapeutics Business Description