By Richard Loth (Contact | Biography)

A stock's price/sales ratio (P/S ratio) is another stock valuation indicator similar to the P/E ratio. The P/S ratio measures the price of a company's stock against its annual sales, instead of earnings.

Like the P/E ratio, the P/S reflects how many times investors are paying for every dollar of a company's sales. Since earnings are subject, to one degree or another, to accounting estimates and management manipulation, many investors consider a company's sales (revenue) figure a more reliable ratio component in calculating a stock's price multiple than the earnings figure.

Formula:

Components:

The dollar amount in the numerator is the closing stock price for Zimmer Holdings as of December 31, 2005, as reported in the financial press or over the internet in online quotes. In the denominator, the sales per share figure is calculated by dividing the reported net sales (income statement) by the weighted average number of common shares outstanding (income statement) to obtain the \$13.30 sales per share figure. By simply dividing, the equation gives us a P/S ratio indicating that, as of Zimmer Holdings 2005 fiscal yearend, its stock (at \$67.44) was trading at 5.1-times the company's sales of \$13.30 per share. This means that investors would be paying \$5.10 for every dollar of Zimmer Holdings' sales.

Variations:
None

Commentary:
"The king of the value factors" is how James O'Shaughnessy describes the P/S ratio in his seminal book on investing strategies, What Works on Wall Street (McGraw-Hill, 1997). Using Standard & Poor's CompuStat database, his exhaustive analysis makes clear that "the stock market methodically rewards certain investment strategies while punishing others." No matter what your style of investing, O'Shaughnessy's research concludes that "low price-to-sales ratios beat the market more than any other value ratio, and do so more consistently."

As powerful a valuation metric as the P/S ratio may be, it would be a mistake for investors to put all their stock price valuation eggs in one basket. However, the P/S ratio does provide another perspective that complements the other valuation indicators - particularly the P/E ratio - and is a worthwhile addition to an investor's stock analysis toolbox.

Investment Valuation Ratios: Dividend Yield
Related Articles
1. Investing

### How To Use Price-To-Sales Ratios To Value Stocks

The price-to-sales ratio reveals how much Wall Street values every dollar of a company’s sales.
2. Investing

### Sysco and Other Big Movers In Services

The market has been slipping so far today. The Nasdaq has fallen 0.3%; the S&P 500 has fallen 0.4%; and the Dow has declined 0.5%. The Services sector (IYC) is currently lagging behind the overall ...
3. Investing

### How To Use The P/E Ratio And PEG To Tell A Stock's Future

While the price-to-earnings ratio is commonly used for assessing stock prices, the price/earnings-to-growth ratio offers forecasting advantages that investors need to know.
4. Investing

5. Investing

### SXC Health Solutions Corp. (USA) Among the Nasdaq's Biggest Movers

The market is having a bad day so far: the Nasdaq is trading down 0.3%; the S&P 500 has declined 0.4%; and the Dow has slipped 0.5%. The Nasdaq Composite Index is a capitalization-weighted index, ...
6. Investing

### 5 Must-Have Metrics for Value Investors

These quick-and-dirty ratios will help you find the most undervalued stocks on the market.
7. Investing

### Can Investors Trust The P/E Ratio?

The P/E ratio is one of the most popular stock market ratios, but it has some serious flaws that investors should know about.
8. Investing

### 4 Simple Investing Ratios You Need To Know

Dissecting a company’s financial statements to uncover ways to make money is a challenging endeavor. Here are four ratios that can help.