Ed Yardeni warns of echoes of the 1999 Tech Bubble in today’s rally

Published 22/09/2025, 09:34
© Pavlo Gonchar / SOPA Images/Sipa via Reuters Connect

Investing.com -- The latest market rally carries some echoes of the late 1990s tech bubble, with major indexes at record highs and valuations stretched even as earnings continue to improve, according to Ed Yardeni, founder and president of Yardeni Research.

The Dow, S&P 500, Nasdaq, and Russell 2000 all hit new records last week, boosted by the Federal Reserve’s decision to cut rates by 25 basis points.

“Is the stock market back on the road to the same irrational exuberance that inflated the Tech Bubble of 1999, which was followed by the Tech Wreck of the early 2000s?,” Yardeni asked in a Monday note.

“Perhaps,” he added. However, he notes that the current market’s advance has been supported by profits. Forward S&P 500 earnings per share rose to a record $294.91 during the week of September 18, moving toward convergence with the 2026 consensus estimate of $304.88.

Gains are not confined to megacaps. Mid- and small-cap indexes are also showing improvement, while the S&P 100 continues to outperform the broader market—echoing late-1990s dynamics.

Still, valuations are flashing caution. Yardeni flags that the S&P 500 forward price-to-earnings (P/E) ratio now stands at 22, not far below the 25 peak seen at the height of the dot-com bubble.

He continues to expect that the S&P 500 will reach 7700 by the end of 2026.

“If the stock market parties like it’s 1999 in response to the Fed’s monetary easing, then we might get there sooner as a result of a meltup that could be followed by a meltdown,” Yardeni wrote.

“If so, the hangover this time isn’t likely to be as severe as the one that followed the Party of 1999, in our opinion,” he added.

Yardeni said the “Roaring 2020s” — a hypothesized period that implies sustained economic growth, technological progress, and equity market expansion — remains his base-case scenario, with strong market gains expected through the rest of the decade, followed by a potential “Roaring 2030s.”

Since the 1920s, there have been four decades in which the S&P 500 rose more than 200%, and he believes the current rally could mark a fifth.

Latest comments

Risk Disclosure: Trading in financial instruments and/or cryptocurrencies involves high risks including the risk of losing some, or all, of your investment amount, and may not be suitable for all investors. Prices of cryptocurrencies are extremely volatile and may be affected by external factors such as financial, regulatory or political events. Trading on margin increases the financial risks.
Before deciding to trade in financial instrument or cryptocurrencies you should be fully informed of the risks and costs associated with trading the financial markets, carefully consider your investment objectives, level of experience, and risk appetite, and seek professional advice where needed.
Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. The data and prices on the website are not necessarily provided by any market or exchange, but may be provided by market makers, and so prices may not be accurate and may differ from the actual price at any given market, meaning prices are indicative and not appropriate for trading purposes. Fusion Media and any provider of the data contained in this website will not accept liability for any loss or damage as a result of your trading, or your reliance on the information contained within this website.
It is prohibited to use, store, reproduce, display, modify, transmit or distribute the data contained in this website without the explicit prior written permission of Fusion Media and/or the data provider. All intellectual property rights are reserved by the providers and/or the exchange providing the data contained in this website.
Fusion Media may be compensated by the advertisers that appear on the website, based on your interaction with the advertisements or advertisers
© 2007-2025 - Fusion Media Limited. All Rights Reserved.