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Thomas Bulkowski’s successful investment activities allowed him to retire at age 36. He is an internationally known author and trader with 30+ years of stock market experience and widely regarded as a leading expert on chart patterns. He may be reached at

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Bulkowski’s Price to Cash Flow

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Candles Chart
Small Patterns
Industrials (^DJI):
Transports (^DJT):
Utilities (^DJU):
Nasdaq (^IXIC):
S&P500 (^GSPC):
As of 05/27/2015
18,163 121.45 0.7%
8,444 93.82 1.1%
586 1.82 0.3%
5,107 73.84 1.5%
2,123 19.28 0.9%
Tom's Targets    Overview: 05/14/2015
18,600 or 17,700 by 06/01/2015
9,000 or 8,200 by 06/01/2015
610 or 565 by 06/01/2015
5,200 or 4,825 by 06/01/2015
2,150 or 2,050 by 06/01/2015
Mutt Losers: None YTD

Written and copyright © 2008-2014 by Thomas N. Bulkowski. All rights reserved.

My book, Fundamental Analysis and Position Trading, pictured on the left, has a complete chapter dedicated to cash flow, including, "Cooking the Books" and "Is Increasing Cash Flow Good?"

If you click on this link and then buy the book (or anything) at, the referral will help support this site. Thanks. -- Tom Bulkowski

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This page reviews the results from a study of the price to cash flow ratio.

Price to Cash Flow Summary

Cash flow is a biggie among some traders, investors, and analysts that use fundamental analysis. Cash flow is an indicator of the company’s ability to generate cash that it can use to run its business. Peter Lynch writes in One Up on Wall Street that cash flow "is the amount of money a company takes in as a result of doing business." He says that the critical difference between companies, is how much it costs them to generate the cash. It is far better to spend 40 cents to make a dollar than it is to spend 80 cents per dollar. Lynch goes on to say that a 10 to 1 ratio is standard for price to cash flow.

Value Line defines cash flow per share as "net profit plus non cash charges (depreciation, depletion, and amortization), less preferred dividends (if any), divided by common shares outstanding at year end."

A study of the price to cash flow ratio shows that stocks having a low ratio outperform those with a high price to cash flow ratio 78% of the time. A low ratio means that the cash flow is high relative to the stock’s price.

A second test using almost 1,000 samples shows the same result, with stocks having price to cash flow ratios below the median beating the performance of those with ratios above the median by over 60%.

Price to Cash Flow Methodology

I used the Value Line investment survey and typed in their cash flow per share numbers to build a database of 178 stocks with data ranging from 12/30/1991 to 7/11/2008.

After completing the database, I logged the close-to-close price change from 1 to 5 years out, looking forward from the base year. The base year ranged from 1992 to 2006. Not all stocks covered the entire range. Years with no numbers were excluded. The price change measured from the close on the last trading day of each year. Years 2008 and later are not included since the year had not completed as of the time of this study.

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Price to Cash Flow Results

The following table shows the results of price to cash flow ratio (PCF) versus performance over time.

Base YearPCFMedian PCF1 year2 years3 years4 years5 yearsSamples

Let’s take an example using 2006. Stocks with a price to cash flow ratio above the median 11.96 had gains averaging 17.5% in 2007 compared to a loss of 2.2% for stocks with a price to cash flow ratio at or below the median. No more results appear for that row because the years had not ended when the study was done. There were 88 to 89 samples that qualified for the study.

If you count the yearly performance of each entry when the price to cash flow ratio was above or below the median, you will find that stocks with a low price to cash flow ratio outperformed those with a high ratio 78% of the time (51/65).

I consider this result preliminary and intend to expand the database and then publish my findings.

Second Test

In a second test, I compared stocks with price to cash flow ratios above and below the median of all stocks. The following table shows the results.

Price/Cash Flow1 Year MoveSamples
Over 10.349.62%964
Below or equal to 10.3414.7%943

Using almost 1,000 samples, I found that those stocks with price to cash flow ratios below or equal to the median outperformed those with ratios above the median from 1992 to 2007 on a 1 year basis. In other words, I computed each stock’s price to cash flow ratio for 1992 and measured the price change from year end 1992 to year end 1993 and then moved to 1993 and started a new calculation, and so on until I ran out of data. Sorting the price to cash flow ratios and averaging the performance gave the results shown in the table.

-- Thomas Bulkowski

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Copyright © 2008-2014 by Thomas N. Bulkowski. All rights reserved. Q: What is the difference between a new husband and a new dog? A: After a year, the dog is still excited to see you.