Absolutely, it's the worst time to invest in stonks in Wall Street history.
There's never been anywhere close to batshit crazy 230% Market Cap to GDP.
It's the Mother of All Bubbles. pic.twitter.com/kDI2lX5aNm
— Minsky Capital (@MinskyCap) August 26, 2026
For the better part of the last four years, Wall Street can do no wrong. Since early June, the Dow Jones Industrial Average have rocketed to fresh all-time highs.
Although catalysts have been bountiful, with the evolution of artificial intelligence (AI) and better-than-expected corporate earnings each playing a key role, historical headwinds are mounting for the high-flying stock market. While history conclusively shows that optimism and long-term investors are handsomely rewarded — the S&P 500 has never failed to rise over any rolling 20-year period, including dividends — the argument can be made that the stock market is less attractive now than it’s ever been.
Stock valuations have reached dot-com bubble territory
Even though history can’t guarantee what’s to come, past events have an uncanny ability to predict the future on Wall Street. Based solely on historical precedent, stock valuations are sending all the wrong signals to investors.
The S&P 500’s Shiller Price-to-Earnings (P/E) Ratio, also known as the Cyclically Adjusted P/E Ratio (CAPE Ratio), is based on average inflation-adjusted earnings over the last decade. When backtested to January 1871, the Shiller P/E Ratio has averaged 17.4. As of Aug. 21, the CAPE Ratio was almost 42, which is a stone’s throw from the dot-com bubble peak of 44.19 in December 1999.
https://www.fool.com/investing/2026/08/25/history-stock-market-never-been-less-attractive/