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Why Use P/E10?
JWR1945a 06-29-2008, 2:19 PM | Post #2533853 |  25 Replies
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From my web site:

 

Why Use P/E10?

 

Professor Robert Shiller came up with P/E10 as his measure of valuation. It is spectacularly successful. Its reciprocal, the percentage earnings yield 100E10/P, does the best job in predicting stock market returns and retirement financial success of all the measures that I have tested. Close contenders include the dividend yield equivalent 100D10/P and Tobin’s q.

 

P/E10 captures both the INVESTMENT RETURN and the SPECULATIVE RETURN of the stock market. The INVESTMENT RETURN equals the initial dividend yield plus the growth rate of the dividend amount. P/E10 or more specifically 100E10/P captures the initial dividend yield since dividends come out of (smoothed) earnings. The dividend growth rate of stocks overall (S&P500) has been remarkably stable at 5%. The SPECULATIVE RETURN reflects the effect of changing valuations. P/E10 and its reciprocal 100E10/P capture this effect as well.

 

A regression analysis (linear curve fit) shows that the percentage earnings yield 100E10/P estimates both Stock Returns and Historical Surviving Withdrawal Rates exceptionally well.

 

P/E10 or more specifically 100E10/P does a fantastic job of predicting what happens ten years from now (or even longer). What about the next year or two? It does not work in the short term. There is too much randomness for reliable prediction.

 

Is P/E10 usable over long periods of time? The answer is a resounding YES. You can wait twenty years on the sidelines and still be better off. It is that powerful.

 

Sensible use of P/E10 embraces gradually shifting stock allocations. It avoids all-in and all-out decisions. Rob Bennett named this Valuation Informed Indexing (VII or Lucky 7). It works with individual stock segments and with the stock market as a whole (S&P500).

 

Have fun.

 

John Walter Russell

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Re: Why Use P/E10?
cliff 06-29-2008, 3:17 PM | Post #2533858
2  

Indeed, JWR, why use P/E10?

Would using whatever P/E10 is answer the question that the poster jdg1947 recently asked on this forum about investing in GE?

Would using whatever P/E10 is have caused me to not buy some GM baby bonds last week at a 15% yield?

I don't know the answer to any of these questions so I am curious as to what you think?  I can tell you that I do not believe that there is any statistical tool or model or theory that could possibly convince me to "wait twenty years on the sidelines" in the expectation that I'm going to be better off but I'm listening . . . . .

Regards.

Cliff

Re: Why Use P/E10?
JWR1945a 06-29-2008, 3:56 PM | Post #2533866
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Would using whatever P/E10 is answer the question that the poster jdg1947 recently asked on this forum about investing in GE?

Would using whatever P/E10 is have caused me to not buy some GM baby bonds last week at a 15% yield?

It is a matter of personal preferences.From Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;}

Now that P/E10=23

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What if you are an income investor? Or what if you are a dividend blend investor? Your strategy allows you to invest fully at all times. Yet, you may wish to wait for even better bargains.

 

I like the idea of adopting more than one approach. I like the idea of owning some high quality dividend payers, possibly as part of a dividend blend. I like the idea of keeping most of your money on the sidelines. But that is a matter of personality. Whatever you do, be sure that you can live with it: whether the market continues down sharply or if it recovers and shoots up for a season.

 

I do not believe that there is any statistical tool or model or theory that could possibly convince me to "wait twenty years on the sidelines" in the expectation that I'm going to be better off but I'm listening . . . . .

 

Actually, I recommend a minimum allocation of 20%. But you can get away with cutting back to zero under certain conditions (that apply at this moment).

 

Have fun.

 

John Walter Russell

 

 
Re: Why Use P/E10?
JWR1945a 06-29-2008, 4:05 PM | Post #2533869
0  
Editing did not work. Let us try again.

Would using whatever P/E10 is answer the question that the poster jdg1947 recently asked on this forum about investing in GE?

Would using whatever P/E10 is have caused me to not buy some GM baby bonds last week at a 15% yield?

It is a matter of personal preferences.

I like the idea of adopting more than one approach. I like the idea of owning some high quality dividend payers, possibly as part of a dividend blend. I like the idea of keeping most of your money on the sidelines. But that is a matter of personality. Whatever you do, be sure that you can live with it: whether the market continues down sharply or if it recovers and shoots up for a season.

 

I do not believe that there is any statistical tool or model or theory that could possibly convince me to "wait twenty years on the sidelines" in the expectation that I'm going to be better off but I'm listening . . . . .

 

Actually, I recommend a minimum allocation of 20%. But you can get away with cutting back to zero under certain conditions (that apply at this moment).

 

Have fun.

 

John Walter Russell
Re: Why Use P/E10?
cliff 06-29-2008, 4:28 PM | Post #2533878
2  

"It is a matter of personal preferences."

My guess is that most of us can sign up to that.

"Whatever you do, be sure that you can live with it: whether the market continues down sharply or if it recovers and shoots up for a season."

Yep, that makes sense to me, also.

"I recommend a minimum allocation of 20%. But you can get away with cutting back to zero under certain conditions (that apply at this moment)."

Nope, no way John.  At THIS moment (and maybe for some many moments to come), my inclination is not to cut back to zero or to cut back at all - that means selling, right?  My inclination is to buy when prices are low and yields are high.

 

Regardless of 5 or 10 or 50 years worth of relationships between overall market prices and overall market earnings, my theory is that if I want to invest in a specific quality business that has been around a while and that pays dividends and the current price of that business is such that the current price to earnings multiple is below its historical levels (which means its current dividend is above its historical levels), then ipso facto and whoop-de-doo, that's a buy, not a 'cut back.'

 

Regards.

 

Cliff

Edit:  Sorry for the garbled mess.  Can't get it to look decent.

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What a trip!
rascfw 06-29-2008, 6:33 PM | Post #2533908
3  

JWR, this is really eerie... If I'm reading your post properly, P/E10 says keeps 20% or more on the sidelines all the time.

Well, I try to keep 20% in cash and, with my miniscule bond allocations, that usually means about 30% in non-equity. I want that 20% cash... Every single time I *don't* have about 20% in cash, a horrible Black Swan-type event happens where having cash-in-hand is vital. The aftermath of the markets after 9/11 is one horrific example.

Does that mean that I have been somehow practicing a quasi-P/E10 strategy all along? The reason I like that cash level is flexibility. I'm not a Nervous Nellie and cash is not my baby blanket. It's just that whenever I don't keep about 20% in cash, something horrible happens and the market tanks. Then there's a firesale and I need cash but I don't have it and can't raise it -- and I refuse to sell at a loss as a knee-jerk reaction.

I haven't had a chance to explore this stuff yet but, for the benefit of others, here's a link to your website about Shiller's P/E10 and, naturally, for Rob Bennett's valuation informed indexing.     http://www.early-retirement-planning-insights.com/lucky-7.html

Thanks, JWR!

Regards,
Susan

Re: What a trip!
cliff 06-29-2008, 6:51 PM | Post #2533912
1  

Perhaps I misunderstood John.

All this time I've been thinking he is advocating an 80% cash position - that is, a 20% allocation invested in equities.  And saying that now may be the time to take even that allocation to zero.

John?

Regards.

Cliff

Re: What a trip!
bilperk 06-29-2008, 6:54 PM | Post #2533913
3  

"JWR, this is really eerie... If I'm reading your post properly, P/E10 says keeps 20% or more on the sidelines all the time."

No, Susan, what it means now is a minimum of 80% on the sidelines but he would support 100%.

 

 

Re:Question for John.........
bilperk 06-29-2008, 6:56 PM | Post #2533914
2  

What is the last date that PE10 would have supported a 70% allocation to equities for at least 1 full year?

best,

Bill

Re: What a trip!
JWR1945a 06-29-2008, 7:39 PM | Post #2533928
0  

JWR, this is really eerie... If I'm reading your post properly, P/E10 says keeps 20% or more on the sidelines all the time.

I mean that you should maintain at least 20% in stocks at all times.

This is with the traditional S&P500-TIPS kind of investment mix.

Dividend strategies can support up to a 100% stock market investment now.

Keeping some money on the sidelines would allow you to purchase stocks at much, much better prices later.

The non-stock portion should be a TIPS ladder (always a good choice) or preferred stock (better).The biggest issue is converting it into cash to purchase stocks later.

Have fun.

John Walter Russell

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Re: Re:Question for John.........
JWR1945a 06-29-2008, 7:47 PM | Post #2533929
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What is the last date that PE10 would have supported a 70% allocation to equities for at least 1 full year?

It has been a long, long time. Before year 2000 with an S&P500 index portfolio.

NOTE: I generally talk about portfolio shifts in increments of one year.

A portfolio allocation of 70% to 80% would correspond to P/E10 around 14 or so. With the highest (one third of all) dividend payers, P/E10 would be around 17 or so, if I recall correctly. [I looked at Dividend Stocks in my Current Research section.]

Have fun.

John Walter Russell

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Re: Re:Question for John.........
ladamson 06-29-2008, 9:11 PM | Post #2533936
3