Best of the Week
Most Popular
1. Investing in a Bubble Mania Stock Market Trending Towards Financial Crisis 2.0 CRASH! - 9th Sep 21
2.Tech Stocks Bubble Valuations 2000 vs 2021 - 25th Sep 21
3.Stock Market FOMO Going into Crash Season - 8th Oct 21
4.Stock Market FOMO Hits September Brick Wall - Evergrande China's Lehman's Moment - 22nd Sep 21
5.Crypto Bubble BURSTS! BTC, ETH, XRP CRASH! NiceHash Seizes Funds on Account Halting ALL Withdrawals! - 19th May 21
6.How to Protect Your Self From a Stock Market CRASH / Bear Market? - 14th Oct 21
7.AI Stocks Portfolio Buying and Selling Levels Going Into Market Correction - 11th Oct 21
8.Why Silver Price Could Crash by 20%! - 5th Oct 21
9.Powell: Inflation Might Not Be Transitory, After All - 3rd Oct 21
10.Global Stock Markets Topped 60 Days Before the US Stocks Peaked - 23rd Sep 21
Last 7 days
Silver Long-term Trend Analysis - 28th Nov 21
Silver Mining Stocks Fundamentals - 28th Nov 21
Crude Oil Didn’t Like Thanksgiving Turkey This Year - 28th Nov 21
Sheffield First Snow Winter 2021 - Snowballs and Snowmen Fun - 28th Nov 21
Stock Market Investing LESSON - Buying Value - 27th Nov 21
Corsair MP600 NVME M.2 SSD 66% Performance Loss After 6 Months of Use - Benchmark Tests - 27th Nov 21
Stock Maket Trading Lesson - How to REALLY Trade Markets - 26th Nov 21
SILVER Price Trend Analysis - 26th Nov 21
Federal Reserve Asks Americans to Eat Soy “Meat” for Thanksgiving - 26th Nov 21
Is the S&P 500 Topping or Just Consolidating? - 26th Nov 21
Is a Bigger Drop in Gold Price Just Around the Corner? - 26th Nov 21
Financial Stocks ETF Sector XLF Pullback Sets Up A New $43.60 Upside Target - 26th Nov 21
A Couple of Things to Think About Before Buying Shares - 25th Nov 21
UK Best Fixed Rate Tariff Deal is to NOT FIX Gas and Electric Energy Tariffs During Winter 2021-22 - 25th Nov 21
Stock Market Begins it's Year End Seasonal Santa Rally - 24th Nov 21
How Silver Can Conquer $50+ in 2022 - 24th Nov 21
Stock Market Betting on Hawkish Fed - 24th Nov 21
Stock Market Elliott Wave Trend Forecast - 24th Nov 21
Your once-a-year All-Access Financial Markets Analysis Pass - 24th Nov 21
Did Zillow’s $300 million flop prove me wrong? - 24th Nov 21
Now Malaysian Drivers Renew Their Kurnia Car Insurance Online With Fincrew.my - 24th Nov 21
Gold / Silver Ratio - 23rd Nov 21
Stock Market Sentiment Speaks: Can We Get To 5500SPX In 2022? But 4440SPX Comes First - 23rd Nov 21
A Month-to-month breakdown of how Much Money Individuals are Spending on Stocks - 23rd Nov 21
S&P 500: Rallying Tech Stocks vs. Plummeting Oil Stocks - 23rd Nov 21
Like the Latest Bond Flick, the US Dollar Has No Time to Die - 23rd Nov 21
Why BITCOIN NEW ALL TIME HIGH Changes EVERYTHING! - 22nd Nov 21
Cannabis ETF MJ Basing & Volatility Patterns - 22nd Nov 21
The Most Important Lesson Learned from this COVID Pandemic - 22nd Nov 21
Dow Stock Market Trend Analysis - 22nd Nov 21
UK Covid-19 Booster Jabs Moderna, Pfizer Are They Worth the Risk of Side effects, Illness? - 22nd Nov 21
US Dollar vs Yields vs Stock Market Trends - 20th Nov 21
Inflation Risk: Milton Friedman Would Buy Gold Right Now - 20th Nov 21
How to Determine if It’s Time for You to Outsource Your Packaging Requirements to a Contract Packer - 20th Nov 21
2 easy ways to play Facebook’s Metaverse Spending Spree - 20th Nov 21
Stock Market Margin Debt WARNING! - 19th Nov 21
Gold Mid-Tier Stocks Q3’21 Fundamentals - 19th Nov 21
Protect Your Wealth From PERMANENT Transitory Inflation - 19th Nov 21
Investors Expect High Inflation. Golden Inquisition Ahead? - 19th Nov 21
Will the Senate Confirm a Marxist to Oversee the U.S. Currency System? - 19th Nov 21
When Even Stock Market Bears Act Bullishly (What It May Mean) - 19th Nov 21
Chinese People do NOT Eat Dogs Newspeak - 18th Nov 21
CHINOBLE! Evergrande Reality Exposes China Fiction! - 18th Nov 21
Kondratieff Full-Season Stock Market Sector Rotation - 18th Nov 21
What Stock Market Trends Will Drive Through To 2022? - 18th Nov 21
How to Jump Start Your Motherboard Without a Power Button With Just a Screwdriver - 18th Nov 21
Bitcoin & Ethereum 2021 Trend - 18th Nov 21
FREE TRADE How to Get 2 FREE SHARES Fractional Investing Platform and ISA Specs - 18th Nov 21
Inflation Ain’t Transitory – But the Fed’s Credibility Is - 18th Nov 21
The real reason Facebook just went “all in” on the metaverse - 18th Nov 21
Biden Signs a Bill to Revive Infrastructure… and Gold! - 18th Nov 21
Silver vs US Dollar - 17th Nov 21
Silver Supply and Demand Balance - 17th Nov 21
Sentiment Speaks: This Stock Market Makes Absolutely No Sense - 17th Nov 21
Biden Spending to Build Back Stagflation - 17th Nov 21
Meshing Cryptocurrency Wealth Generation With Global Fiat Money Demise - 17th Nov 21
Dow Stock Market Trend Forecast Into Mid 2022 - 16th Nov 21
Stock Market Minor Cycle Correcting - 16th Nov 21
The INFLATION MEGA-TREND - Ripples of Deflation on an Ocean of Inflation! - 16th Nov 21

Market Oracle FREE Newsletter

How to Protect your Wealth by Investing in AI Tech Stocks

Will the Stock Market PE Ratio Expand or Contract?

InvestorEducation / Learning to Invest Aug 07, 2007 - 01:00 PM GMT

By: Hans_Wagner

InvestorEducation

Knowing whether the PE ratio is going to expand or contract is an important factor when trying to beat the market . This is the first of a four part series on which direction the PE ratio for the S&P 500 will go over the next couple of years. First, let's briefly go over how to use the PE ratio and then we will look at ways to get the underlying PE ratio for the S&P 500. It is not as easy as one might first think. In the later parts we will examine the potential for the S&P 500 PE ratio to expand, contract and then provide an opinion on what investors should do.


An Overview of the PE Ratio

The price-to-earnings PE ratio is very useful to value stocks. It is calculated by taking a company's share price and dividing this by its earnings per share. This ratio provides a measure of the price being paid for the earnings. The higher the PE ratio the more investors are paying for the underlying earnings.

The more growth the company has experienced or is expected to see, the higher the PE ratio will be. On the other hand the PE ratio can also be an indication that the company is overvalued and the price of the company might fall as investors realize the extent of their problems.

A low PE can signal a good time to buy, but it can also mean that the company is having problems. The PE ratio can be very helpful in assessing stocks but it needs to be considered along with other important factors.

The PE chart of a company or index over time can tell us a lot about how risky the investment is or if it's a good time to buy in. When considered with future earnings, forecasts can be made on the future price of the company.

Over time PE ratios grow and contract. This can be caused by the economy or earnings expectations. For example if a company's earnings increase by 30% and the PE ratio remains the same, then the price of the stock should increase by 30% as well. On the other hand, if earnings go up 30% but the PE pulls back 30%, due to lower earning forecasts, you are left with a stock that didn't go anywhere.

Basically the price of a stock can be explained by the growth in earnings and the expansion or contraction of the PE ratio. You can find the PE ratio for a stock on most popular stack sites such as finance.yahoo.com

PE Ratios for Indexes

Unfortunately the PE of an index - the total price of the index divided by its total earnings - is a little more difficult to come upon. To get this information, you have to go to the source - the index's publishers. For example, you can find the PE for the S&P 500 on the  Standard & Poor's website  and for the DJIA on the Dow Jones Indexes website .

Once there you must search around for the index in question as well as the PE ratio. There are no readily available charts that you can use to evaluate the longer term trends.

Other Sources for the PE Ratio for the S&P 500

You can search for PE ratio charts for various indexes on the Web. A brief search gave me the charts below. 

The two charts below are from Ticker Sense . The first one shows STP 500 price and PE ratio from 1986 to March 2007. The key observation on the first chart is the fall in the PE ratio as the S&P 500 grew. Usually the PE ratio helps the S&P 500 increase in value by expanding itself. However, keep in mind that the PE ratio was declining from the technology bubble of 2000.

Peratio

The second chart is for the S&P 500 price and PE ratio from May 2006 to March 2007. Notice the dramatic drop in the price and PE ratio that correspond to the fall in the market that begin at the end of February 2007.

Peratio2

According to various experts the PE ratio has averaged around 15 for the last 100 years. Of course it has moved above and below this level over time. 

Robert Shiller, author of Irrational Exuberance: Second Edition , uses "real price" and "real earnings" to derive his PE ratio. He has an extensive web site with an excel file of his data that is up dated periodically. The chart below for the S&P 500 PE ratio is from this site. Part of his methodology is to use averages over time to calculate the values. This tends to slow the movement of the PE ratio which partly explains why the chart below shows a higher PE ratio for the S&P 500. Also the latest data is for August 2006.

Another way to get an estimate of the PE ratio use exchange-traded funds (ETF), which closely follows the index. This measure will not be as exact as the index's own measure, due to the fees charged by the ETF. Also the ETF is traded on the market so there will be slight variation in the value as well. However, these should be only slight variation, so the PE ratio should follow very closely to the ratio for the underlying index. The biggest benefit is the information is a lot easier to find.

The table below is for some of the popular index based ETFs. 

Index ETF Ticker
S&P 500 SPDRs SPY
DJIA Diamonds Trust I DIA
NASDAQ 100 NASDAQ 100 Trust QQQQ
Russell 2000 iShares Russell 2000 IWM
Wilshire 5000 Total Stock Market VIPERS VTI
Charting the PE Ratio

There is a way to get the PE ratio included on one chart tool that is available to anyone with internet access. Go to BigCharts . Enter your symbol in the field at the top left and click on the Interactive Chart button. Under Chart Options adjust the time period you want to see. Then under Lower Indicators chose the PE Ratio. For example this works for the S&P 500 as shown below.

The Bottom Line

In summary the PE ratio is a useful tool to help understand the potential value of a stock or the overall market. It is particularly useful to see the PE ratio displayed over time in chart format. When an investor is trying to decide if the market is fairly valued a chart showing the PE ratio over time is a useful tool. However, it is difficult to find ways to plot the PE ratio over time. This article provided some further background on how to find and the plot the PE ratio for various indexes. As with any tool it should be used in conjunction with others to help make an investment decision. 

By Hans Wagner
tradingonlinemarkets.com

My Name is Hans Wagner and as a long time investor, I was fortunate to retire at 55. I believe you can employ simple investment principles to find and evaluate companies before committing one's hard earned money. Recently, after my children and their friends graduated from college, I found my self helping them to learn about the stock market and investing in stocks. As a result I created a website that provides a growing set of information on many investing topics along with sample portfolios that consistently beat the market at http://www.tradingonlinemarkets.com/

Hans Wagner Archive

© 2005-2019 http://www.MarketOracle.co.uk - The Market Oracle is a FREE Daily Financial Markets Analysis & Forecasting online publication.


Comments

John Boyd
10 Mar 09, 13:40
price earning ratio

I noticed in Daily telegraph 10.3.2009 that the P/E ratio for Barclays Bank is posted as 1.1. However, when one checks the share price, 62p, against the yield it works out at 5.6. why is this?


Nadeem_Walayat
10 Mar 09, 15:51
Price Earnings

Your confusing earnings with dividends.

Dividend / Price = Yield

Price / Earnings = is the ratio between the share price and earnings per share.

Earnings is profits a company makes after taxes, part of which it can chose to pay out as a dividend or reinvest or like microsoft and google leave in the bank.


FL Fin & Ins
25 Mar 09, 13:26
PE ratio discussion

Excellent answer, Nadeem, but may I mention a common grammatical error & a way to avoid it? Your is possessive as in yours or mine. You're means 'you are' which is what you meant to say. To avoid in the future sound out 'you are' & if that fits use 'you're' - otherwise use your.


Post Comment

Only logged in users are allowed to post comments. Register/ Log in