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Stocks A to Z / Stocks B / Berkshire Hathaway (BRK.A)
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Author: EVBigMacMeal   😊 😞
Number: of 19824 
Subject: Market valuation
Date: 11/15/25 12:31 PM
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No. of Recommendations: 19
Shiller PE peaks (followed by what happened next):

1929: 31x (-8.4%, -24.8%, -43.3%)

2000: 44x (-9.1%, -11.9%, -22.1%)

2025: 41x (TBC)

*Mag 7 (outside of Tesla) have been extremely profitable companies over the past 10 years and have enjoyed favourable corporate taxes. The open question now, is what will the returns be from the $500 billion AI investment.

Buffett indicator (Market cap/GDP):
2000: 126%
2025: 225% (with larger international earnings)

Market down years from 1929:
1929: –8.42%
1930: –24.90%
1931: –43.34%
1932: –8.19%
1934: –1.44%
1937: –35.03%
1940: –9.78%
1941: –11.59%
1946: –8.07%
1957: –10.78%
1962: –8.73%

1966: –10.06%
1969: –8.50%
1973: –14.66%
1974: –26.47%
1977: –7.18%
1981: –4.91%
2000: –9.10%
2001: –11.89%
2002: –22.10%
2008: –37.00%
2018: –4.38%
2022: –18.11%

Berkshire’s negative return years:
1966: -3.4%
1973: -2.5%
1974: -48.7%
1984: - 2.7%
1990: - 23.1%
1999: -19.9%
2002: -3.8%
2008: -31.8%
2011: -4.7%
2015: -12.5%

Berkshire can’t find anything material to buy and has plenty of cash as a result.

The future is certain. Markets will go up and down. Value matters.
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Author: tecmo   😊 😞
Number: of 19824 
Subject: Re: Market valuation
Date: 11/15/25 7:11 PM
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No. of Recommendations: 2
I think the TTM earnings per share for the SP500 is $281 ,

which would imply a PE of 6791 / 281 = 24

of course you picked the Shiller PE ratio - which looks to be at 39, here is a nice chart

https://www.multpl.com/shiller-pe


Why is the P/E on this site different than what is reported by S&P and other sites?

The P/Es listed on many other sites are based on earnings from the previous year only.

The figures on multpl.com are the PE10 or Shiller PE. They are the price to average earnings from the past ten years. Because this factors in earnings from the previous ten years, it is less prone to wild swings in any one year.


What is the P/E 10? How is it calculated?

To calculate P/E10:

Look at the yearly earning of the S&P 500 for each of the past ten years.
Adjust these earnings for inflation, using the CPI (ie: quote each earnings figure in 2025 dollars)
Average these values (ie: add them up and divide by ten), giving us e10.
Then take the current Price of the S&P 500 and divide by e10.





tecmo
...


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Author: Cyberschreiber   😊 😞
Number: of 19824 
Subject: Re: Market valuation
Date: 11/16/25 11:00 AM
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No. of Recommendations: 13
Very interesting stuff, thank you, EVBigMacMeal! Three remarks, though:

1. Buffett Indicator: I do not believe that the Buffett Indicator is reliable anymore, for several reasons. More revenue is being generated overseas, especially by the large Mag 7 companies, as you mentioned. In addition, a greater share of economic activity now takes place in private companies rather than in public markets. The Buffett Indicator (which is based on the ratio of total public stock market capitalization to GDP) has therefore become less representative of the overall economy: https://shorturl.at/RVe0U

2. High P/E: I see overvaluation in many traditional market segments (Costco or Walmart come to mind) as well as in overhyped sectors like quantum computing or energy. Many of these stocks have already pulled back sharply from their recent highs when I last checked (Rigetti –56%, D-Wave Quantum –48%, IonQ –45%, Oklo –42%, and so on). One could argue that a crash has already occurred and will possibly continue. There have also been some sharp corrections in the so called cryptocurrency world (and much more money will be lost there in the future, I have no doubt).

3. Value matters: The common view seems to be that the winner—or the few winners—will take it all in AI. I have some doubts about whether the much touted OpenAI will be one of them, since they are burning too much money they don’t have. Personally, I also would never touch Tesla. But the Googles and Metas of this world with tons of FCF—why not? I can see why Berkshire bought Google (and Amazon some years ago) and wouldn’t be surprised if they added some Meta with its forward P/E of 21 and excellent ROE (32%)and ROCE (34%). Of course Meta will suffer if the AI bet doesn’t pay off. They already have experience with this—Metaverse was a debacle. But as long as they continue to show such solid numbers in their core business, the risk seems limited to me. A friend of mine who is running a large company (for Swiss standards) has used Meta. He was quite impressed how they employ advanced AI and machine learning systems for ad targeting, creative generation, budget optimization, and campaign performance analysis. Ironically, my friend has worked for Google in the past - so he has some experience in this matter. This tells me that it is not hot air, that they use what they sell and sell what they use.
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