I’ve posted Entry #549 to my weekly Valuation-Informed Indexing column at the Value Walk site. It’s called Solving Puzzles Can Yield Big Investing Insights.
Juicy Excerpt: There is nothing that can be bought or sold in this world that is not a bad buy at some price point. Yet the Buy-and-Holders say that stocks are worth purchasing at any possible price. It’s a puzzle.


All my bad buys got me to $6 million+. I will take more of those bad buys.
If you are happy with Buy-and-Hold, you should stick with it.
And I of course wish you the best of luck doing so.
Rob
Do you somehow think I would have been better off with a VII account at $1 million versus my buy and hold at $6 million?
I think you should always adjust the numbers to reflect the effect of irrational exuberance. If you adjust the numbers, you will know the real and lasting value of your portfolio. Then you should consider the added risk attached to stocks at times of sky high prices. In setting your allocation, your aim should be to keep your risk profile roughly constant over time. That’s Valuation-Informed Indexing. The last 40 years of peer-reviewed research shows that that is the strategy that will give you the best risk-adjusted return over your investment lifetime. That’s been so for 150 years now, as far back as we have good records.
I believe that we should be sharing the exciting how-to implications of Shiller’s Nobel-prize-winning research with every investor on the planet. I am not able to imagine any downside.
Rob
“ I am not able to imagine any downside.”
I would have much less in my portfolio if I followed your advice. How is that not a downside?
Valuation-Informed Indexing is always the best strategy (measured on a risk-adjusted basis) over the course of an investing lifetime. There are often times when it is not the strategy that produces the best nominal results for a specific time-period. If it is a big deal to you to enjoy the best nominal results at times when prices are at insanely high levels, you could go with a Buy-and-Hold strategy. That’s your choice, It is not your choice to make that decision for others by suppressing discussion of what the last 40 years of peer-reviewed research says.
Rob
As pointed out in this forum, you and Shiller have a long track record of being wrong.
https://www.city-data.com/forum/economics/3273281-robert-shiller-worried.html
If Shiller is right about one thing, he is right about everything. The question that matters is — Is irrational exuberance a real thing?
If it is, then the nominal value of the stock market is not its real value. You have to adjust for the effect of irrational exuberance. That changes everything. It changes every single strategic consideration.
My sincere take.
Rob
“ If Shiller is right about one thing, he is right about everything”
As pointed out on the thread, he has been wrong the majority of times. You might want to reconsider your comment.
It all depends on what assumption you begin your assessment with. If you start with a belief that the market is efficient, your assessment shows that everything that Shiller has said is nonsense. If you start with a belief that irrational exuberance is a real thing, your assessment shows that Shiller has always been right. Your starting point determines your ending point.
Rob
You don’t start with any assumptions. You merely look at the predictions and then the outcome to measure accuracy.
If irrational exuberance is a real thing, then we should see a devastating price crash once we get to the price levels that have applied in recent decades. But it is not possible to say when that crash will come. You seem to believe that, because the price crash has not yet arrived, it never will arrive. If irrational exuberance is a real thing, you will be proven wrong in that thought in days to come. At that time, every person in the United States will be wishing that there had never been a Ban on Honest Posting I think that irrational exuberance is a real thing. But there is only one way to find out for sure, That is to wait and see how things play out.
My best wishes.\
Rob
We look at outcomes to see as to what was right and what was wrong. As noted by the discussion from the forum noted in the link, Shiller, just like you, has been wrong much more frequently than he has been right. That is just a factual observation.
Did you adjust the value of stocks downward by 60 percent to reflect the effect of irrational exuberance in determining the “outcomes” that apply today? If you failed to do that, then you made the same mistake that Greaney made in his retirement study, you failed to take the last 40 years of peer-reviewed research into consideration when performing your calculations.
Is it just a “factual observation” that the sun revolves around the earth? Ignore many years of scientific research and you can get your mind to a place where that does indeed appear to be a “factual observation.” Take the research into consideration and you of course arrive at very different “factual observations.”
I believe that Shiller’s Nobel-prize-winning research is legitimate research.
Rob
“Did you adjust the value of stocks downward by 60 percent to reflect the effect of irrational exuberance in determining the “outcomes” that apply today?”
You don’t risk adjust past numbers. You are measuring outcomes (things that actually happened). It is like saying “What percent chance Does the Tampa Bay Bucs have in winning the 2021 Super Bowl”. You wouldn’t discount the odds because it already occured.
The aim is to identify the correct value of the stock market TODAY. Do you go by the nominal numbers reported in the newspapers and on portfolio statements? Or do you adjust for the effect of irrational exuberance? The two procedures will give you very different numbers.
Rob
“The aim is to identify the correct value of the stock market TODAY. ”
You are ignoring what has already happened. There is no “do over”. If your predictions have been wrong, you can’t go back and change it. Instead, you have to acknowledge that you were wrong and then question your strategy. Your portfolio didn’t just stay stagnant for the past 20 years. People following different investing strategies are not as the same starting point. There becomes a point in which you can no longer catch up to guy that you like to think has only benefited due to your perceived “irrational exuberance”. Those are just words and not factual results (things that have now occured).
None of those words relate to what we are talking about.
I have never asked for any do-overs.
What I have asked for is accurate calucations.
If you adjust the nominal numbers for the effect of irrational exuberance, you get very, very different numbers.
If you make the necessary adjustments, you see that Shiller has always been right. If you fail to make the necessary adjustments, you can fool yourself into thinking he has been wrong. Whether you make the adjustment or not is the determining factor.
If adjustments for irrational exuberance are not needed, Greaney’s retirement study gets all the numbers right. If such adjustments are required, Greaney’s numbers are wildly off the mark.
None of this is new. Anyone who was paying a little bit of attention would have known all this going back to the morning of May 13, 2002.
Shiller changed our understanding of how stock investing works in a fundamental way. We need to update all of the textbooks and such to reflect this major advance.
My sincere take.
Rob
It has everything to do with what we are talking about. We are talking about what has really happened in the past versus what was predicted to have happened. If your predictions came true, you would be using those as proof of your predictions having come true. However, since things didn’t turn out how you said they would, you want everyone to ignore the results and say that it is all pretend money. You can’t change the past just to support your narrative.
There were predictions that Shiller made that did not prove out and there were predictions that I made that did not prove out. You are right that, if the predictions has proven out, I would cite that as evidence (not absolute proof) in support of Valuation-Informed Indexing. You are wrong that I do not want people to ignore the failure of the predictions. I think it is important that people know about that. I DO think that all stock gains above those that support a CAPE value of 16 are Pretend Money. The point of Valuation-Informed Indexing is to distinguish real economic gains, which can be used to plan one’s future, from phony irrational-exuberance gains, which do not have lasting value.
If those gains are really the product of irrational exuberance, as Shiller’s Nobel-prize-winning research indicates, they are still going to disappear into thin air. Knowing precisely when that will happen is less important in my eyes than knowing that it will sooner or later happen. If it turns out that Shiller is right (I believe he is), we are going to see millions of failed retirements and hundreds of thousands of failed businesses and millions of workers thrown out of their jobs and an increase in political frictions. None of that is required. If people had access to accurate, honest, research-based investment advice, we could never again see the CAPE value reach the level where it resides today. Stocks would be an amazing asset class offering annual returns of 6.5 percent real. All that would be lost if we permitted honest posting is the crazy ups and downs that have characterized the stock market in the pre-Shiller era. I can do without that stuff. A steady return of 6.5 percent real, without the economic crises that inevitably follow when large numbers of investors are persuaded to forsake market timing (price discipline!) sounds just fine to me.
That’s where I’m coming from, Anonymous.
Rob
“There were predictions that Shiller made that did not prove out and there were predictions that I made that did not prove out. You are right that, if the predictions has proven out, I would cite that as evidence (not absolute proof) in support of Valuation-Informed Indexing. You are wrong that I do not want people to ignore the failure of the predictions. I think it is important that people know about that. I DO think that all stock gains above those that support a CAPE value of 16 are Pretend Money.”
Now flip it around. If Buy and Hold did what you said would happen, you would have also said that it proved the points you made in the past. You are basically ignoring what happened by saying you think you are right regardless of the outcomes. Sorry, but that doesn’t work. We measure outcomes for a reason.
I don’t think that any one person is all knowing. I believe that Shiller’s research is legitimate. I promote Valuation-Informed Indexing. But I would be horrified if someone said that he was following a Valuation-Informed Indexing strategy solely on my say-so. I believe that we all should post what we believe, Valuation-Informed Indexers and Buy-and-Holders alike.
I think that you are kidding yourself if you really believe that we already know the “outcome” of this horrible bull market. Will you still be saying that if we all have to live through the Second Great Depression? Not this boy. Holy, moly!
Rob
It’s only a horrible bull market if you are over the age of 60 and you missed out on the bull run. At that point, it is too late for you.
If we see millions of failed retirements, it’s a horrible bull market. If we see hundreds of thousands of businesses go under, it’s a horrible bull market. If we see millions of workers lose their jobs, it’s a horrible bull market. If we see increased political frictions, it’s a horrible bull market.
And for what? We get the same 6.5 percent real return regardless of whether we play these games to push prices up temporarily or whether we permit honest posting and see prices remain at reasonable levels at all times. I don’t see the fantasy thrill ride as being worth the price attached to it.
Rob
We have seen ups and downs, yet we know that with each drop, it has always recovered. Once you have your nest egg and you are in your 60’s, the typical buy and holder will have a 60/40 or 70/30 portfolio. He/she will continue to rebalance and will have the bond portion to pull from during those years with drops. However, if you are in your 60’s and you missed out on the bull run and your nest egg is low, it is too late to fix things. Your timing scheme failed you.
There’s no question but that stock prices will eventually recover after any price drop (presuming that the economic system does not collapse altogether). That doesn’t justify pushing risk up to such extreme levels that you cause millions of failed retirements and hundreds of thousands of businesses to go belly up. Why not just allow investors to learn what is in their best interest and to act on that knowledge. That way you get the same great long-term returns without the economic crises that pushing the pure Get Rich Quick/Buy-and-Hold strategy inevitably bring on.
Rebalancing doesn’t do the job. Rebalancing is staying at the same stock allocation regardless of price/risk. Huh? What the f? Why would anyone want to do that? Why not engage in whatever amount of market timing is required to keep your risk profile stable over time? The peer-reviewed research that I co-authored with Wade Pfau shows that doing that would permit you to retire many years sooner while taking on far less risk. I can live with that. I don’t think that it is an accident that the Buy-and-Hold Goon Squads threatened to get Wade fired from his job when he went public with that message. When people begin learning what the last 40 years of peer-reviewed research shows, Buy-and-Hold begins losing much of its appeal. We should all be working to get the word out at every site on the internet, in my sincere assessment.
My best wishes to you, in any event.
Rob
“Rebalancing doesn’t do the job. Rebalancing is staying at the same stock allocation regardless of price/risk. Huh? What the f? Why would anyone want to do that? Why not engage in whatever amount of market timing is required to keep your risk profile stable over time? ”
There has never been a failure yet of buy, hold and rebalance over a 30 year period, yet we have never seen one successful market timing portfolio. The only thing you can offer up is to “see how things play out”. Sorry, but I go with what has always worked.
That’s not what the Bennett/Pfau research shows, Anonymous. The Bennett/Pfau research shows that Valuation-Informed Indexing has been superior to Buy-and-Hold for as far back as we have records. That’s why you Goons threatened to get Wade fired from his job if he continued promoting the research.
I believe that our research will be featured on every investing discussion board and blog on the internet in the days following the next price crash. We’ll see.
Rob
It is not true that we would ‘see the same 6.5%’. If stocks were not volatile and were risk free they would have the same returns as treasuries.
I don’t agree.Edge.
The return that you obtain on stocks is the result of the increase in the value of the companies. The increase in value is the same regardless of how much risk we add by failing to practice price discipline. Making stocks riskier is a negative, not a positive.
At least that is my sincere take re this question.
Rob