At the 2017 Berkshire Hathaway (BRK-A, BRK-B) annual shareholders meeting, Buffett fielded a question about the Buffett indicator as well as Robert Shiller's legendary CAPE ratio.
He had this to say: “Every number has some degree of meaning. It means more sometimes than others...
And both of the things that you mentioned get bandied around a lot. It’s not that they’re unimportant… They can be very important. Sometimes they can be almost totally unimportant.
It’s just not quite as simple as having one or two formulas and then saying the market is undervalued or overvalued.” (Emphasis ours.)
In that response, Buffett went on to say "the most important thing is future interest rates," arguing that low rates justify higher valuations.
What Warren Buffett said about the 'Buffett Indicator'https://finance.yahoo.com/news/warren-b ... 09465.html