Price to Research Ratio (P/R or PRR)

What Is the Price-to-R (P/R) Ratio – PRR?

The price to research ratio is a price multiple ratios. In short form, P/R or PRR represents the price-to-research ratio.

It is a tool to measures the relationship between a company’s market capitalization and its research and development (R&D) expenditures.

On the other hand, it can be expressed as a comparison between how much is spent by a company on research and development and the value of its current share price of the same.

Here R&D related to its ability to generate future profits from new products.

The price-to-research ratio is evaluated by dividing a company’s market value by its last 12 months of expenditures on research and development.

Market value is set up by multiplying the total number of shares outstanding by the current stock prices.

The definition of research and development expenditures may differ from industry to industry, but companies in the same industry generally follow similar definitions of R&D expense.

There are following items are included in R&D expenses are pure research, technology licensing, the purchase of proprietary technology from third parties, or the cost of getting innovations through regulatory hurdles.

Advantage of Price to Research Ratio

  • it is a measure of comparing companies’ R&D expenditures.
  • P/R is useful for planning to generate future profit.
  • A PRR ratio between 5x-10x is seen as ideal, while a level above 15x should be avoided.
  • It measures how effectively R&D expenses translate into viable products or sales growth.

Disadvantage of Price to Research Ratio

  • PRR does not measure how effectively management allocates capital.
  • R&D spending is not a guarantee that future profits from that R&D will ever materialize.
  • R&D intensity can vary widely.
  • It is perhaps more likely to succeed in producing future profitability.
  • The higher ratio may indicate the opposite that the company is not investing enough in future success.
  • There is no guarantee that a patent will ever turn into a marketable product.


The formula is as follows:

Price-to-Research Ratio





Let us suppose that Company Infosys spent $5,000,000 on R&D the previous year. It has 10,000,000 shares outstanding trading at $5.  Find the price to research ratio?



Using the aforesaid formula, the price-to-research ratio for Company Infosys is:


Price-to-Research Ratio = (10,000,000 x $5) / $5,000,000

= ($50,000,000) / $5,000,000


Analysis and Interpretation of Price-to-Research Ratio

Financial knowledgeable author Kenneth Fisher developed the price to research ratio to measure and evaluates firms’ relative R&D expenditure.

Fisher suggests buying firms with PRRs between 5 and 10 and avoiding firms with PRRs better than 15. By searching for low PRRs, investors ought to have the ability to spot firms which can be redirecting present earnings into R&D, thereby higher guaranteeing long-term future returns.

The PRR ratio is one way to consider a company’s capability to generate future earnings. After all, R&D is a manifestation of an agency’s commitment to innovation.

Thus, the decrease in the ratio (that’s, the upper the denominator) the more a company’s “value” is tied to innovative actions.

PRR is a comparison of how a lot of money a firm spends on research and development in relation to its market capitalization.

The ratio is most vital in research-based companies similar to pharmaceutical corporations, software program corporations, {hardware} corporations, and client merchandise corporations. In these research-intensive industries, funding in scientific and technical innovation is crucial for success and long-term progress and might be a vital indicator of the corporate’s capability to generate earnings sooner or later.

In comparison, throughout peers, a decrease in the ratio could also be thought of interesting, as it could point out that the corporate is closely invested in research and development, and is maybe more probably to achieve producing future profitability.

A comparatively larger ratio could point out the other that the corporate is just not investing sufficiently in future success.

However, the devil is within the particulars, and the decrease in this ratio agency may have a lower market capitalization, and never essentially greater funding in R&D.

It is vital to note, nonetheless, that R&D spending is just not a guarantee that future earnings from that R&D will ever materialize.

Nevertheless, the ratio can present perception into corporations that compete inside the identical business, as a result of R&D depth can fluctuate extensively. Thus, the definition of a “high” or “low” ratio must be made inside this context.

Similarly, a comparatively favorable price-to-research ratio doesn’t assure the success of future product innovations, nor does a considerable amount of R&D spending assure future earnings.

What actually issues is how successfully the corporate is using its R&D {dollars}. In addition, the suitable degree of R&D spending varies by business and will depend on the corporate improvement stage.

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