Being a combination of the *Price-to-Earnings* and *Price-To-Book* ratios, the *Graham Number* gives more comprehensive insight into a stock than either ratio used alone.

## The Ratios

### Price-to-Earnings (P/E)

*Earnings Per Share (EPS)* indicates how much profit the company makes per share.

*EPS* combined with *Price* gives an idea of the rate of return one can expect on one's investment. *EPS* and *Price* are usually measured together as the *P/E ratio*, or *Price-to-Earnings ratio*.

### Price-To-Book (P/B)

*Book Value Per Share (BVPS)* is the theoretical liquidation value of the stock. *BVPS* indicates how much one would be paid per share if the company were to close tomorrow.

*BVPS* combined with *Price* gives a rough idea of the collateral on one's investment. *BVPS* and *Price* are usually measured together as the *P/B ratio*, or *Price-to-Book ratio*.

## Graham Number

The Value Investing framework of Benjamin Graham — Warren Buffett's mentor — states that a stock for *Defensive* investment should have:

6. Current price should not be more than 15 times average earnings of the past three years.

7. Current price should not be more than 1½ times the book value last reported.

As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5.

These two rules together yield what is known today as the *Graham Number*.

The *Graham Number* is designed to assess stocks regardless of sector. Companies from low-earnings industries such as *Utilities* will need higher asset figures, and those from low-asset ones such as *Financial Services* will need higher earnings figures.

Note: The *Graham Number* too is not meant to be used in isolation, despite its higher versatility.

### Serenity Number

For more *Enterprising* (or *aggressive*) investors, Graham recommended:

"issues selling at multipliers under 10... Price: Less than 120% net tangible assets."

These rules yield a similar price calculation, referred to on *Serenity* as the *Serenity Number*.

## Graham Number(%)

*Graham Number(%)* is *Graham Number ÷ Previous Close*.

So a stock with a *Graham Number(%)* of *200%* will have a *P/E* value of *7.5* and a *P/B* value of *0.75* — or a higher value in one corresponding to a lower value in the other — yielding a total multiple of *5.625 (22.5 ÷ 2²)*.

*Graham Number(%)* is thus a combination of the *Price-to-Earnings* and the *Price-To-Book* ratios, and yields better results than either ratio used on its own.

### Intrinsic Value(%)

Similarly, *Intrinsic Value(%)* is *Intrinsic Value ÷ Previous Close*.

The *Intrinsic Value* of an *Enterprising* grade stock is its *Serenity Number*.

An *Enterprising* grade stock with an *Intrinsic Value(%)* of *200%* will have a *P/E* value of *5* and a *P/B* (tangible) value of *0.6* — or a higher value in one corresponding to a lower value in the other — yielding a total multiple of *3 (12 ÷ 2²)*.

## Screening

The below screener links will display stocks with *Graham Number(%)* higher than *200%* and *Serenity Number(%)* higher than *200%* respectively.

*Submitted by serenity. Updated on Saturday 17th August 2019.*