PSCO (ProtoSource) Cyclically Adjusted PS Ratio: (As of Aug. 08, 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.

What is ProtoSource Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation

ProtoSource  (OTCPK:PSCO) Cyclically Adjusted PS Ratio Explanation

Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.

ProtoSource Cyclically Adjusted PS Ratio Related Terms

ProtoSource Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for ProtoSource's Cyclically Adjusted PS Ratio 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.

ProtoSource Cyclically Adjusted PS Ratio Chart

ProtoSource Annual Data
Trend Dec99 Dec00 Dec01 Dec02 Dec03 Dec04 Dec05 Dec06 Dec07 Dec08
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

ProtoSource Quarterly Data
Dec04 Mar05 Jun05 Sep05 Dec05 Mar06 Jun06 Sep06 Dec06 Mar07 Jun07 Sep07 Dec07 Mar08 Jun08 Sep08 Dec08 Mar09 Jun09 Sep09
Cyclically Adjusted PS Ratio 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 0.00 0.00 0.00 0.00 0.00

PSCO vs SYSX: Cyclically Adjusted PS Ratio Comparison

For the Shell Companies subindustry, ProtoSource's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS 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.

ProtoSource Cyclically Adjusted PS Ratio vs Diversified Financial Services Industry

For the Diversified Financial Services industry and Financial Services sector, ProtoSource's Cyclically Adjusted PS Ratio distribution charts can be found below:

* The bar in red indicates where ProtoSource's Cyclically Adjusted PS Ratio falls into.


ProtoSource Cyclically Adjusted PS Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.

ProtoSource's Cyclically Adjusted Revenue per Share for the quarter that ended in Sep. 2009 is calculated as:

For example, ProtoSource's adjusted Revenue per Share data for the three months ended in Sep. 2009 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Sep. 2009 (Change)*Current CPI (Sep. 2009)
=0.022/215.9690*215.9690
=0.022

Current CPI (Sep. 2009) = 215.9690.

ProtoSource Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
199912 0.216 168.300 0.277
200003 0.195 171.200 0.246
200006 0.181 172.400 0.227
200009 0.159 173.700 0.198
200012 0.104 174.000 0.129
200103 0.124 176.200 0.152
200106 0.000 178.000 0.000
200109 0.070 178.300 0.085
200112 0.064 176.700 0.078
200203 0.059 178.800 0.071
200206 0.000 179.900 0.000
200209 0.000 181.000 0.000
200212 0.000 180.900 0.000
200303 0.000 184.200 0.000
200306 0.000 183.700 0.000
200309 0.000 185.200 0.000
200312 0.000 184.300 0.000
200403 0.011 187.400 0.013
200406 0.013 189.700 0.015
200409 0.014 189.900 0.016
200412 0.014 190.300 0.016
200503 0.013 193.300 0.015
200506 0.015 194.500 0.017
200509 0.014 198.800 0.015
200512 0.016 196.800 0.018
200603 0.018 199.800 0.019
200606 0.021 202.900 0.022
200609 0.020 202.900 0.021
200612 0.022 201.800 0.024
200703 0.020 205.352 0.021
200706 0.021 208.352 0.022
200709 0.022 208.490 0.023
200712 0.032 210.036 0.033
200803 0.027 213.528 0.027
200806 0.027 218.815 0.027
200809 0.028 218.783 0.028
200812 0.993 210.228 1.020
200903 0.025 212.709 0.025
200906 0.023 215.693 0.023
200909 0.022 215.969 0.022

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue 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.

ProtoSource Business Description