Should We Party Like It’s 1999?

To be human is to fall into moments of nostalgia. The bias is natural: we look back favorably on the time that we gained new experiences, developed deep relationships and managed fewer responsibilities. Uncertainties that were of concern in the moment do not trouble our recollections. Those memories disregard the macro perspective of material gains made between then and now; the present is almost always better than the past.

My own struggle with nostalgia is that I came of age in the U.S. in the late 1990s. By many objective measures, it was a great time to be alive, not only for my carefree adolescence. Investors are now harking back to the fervor of the late 1990s. I will now set aside my fond memories and compare the economy today with that boom.

The obvious analogue between 2025 and 1999 is the technology-led equity rally. The Dot-Com bubble reflected optimism about the internet. This led to fervent investment, memorably characterized in a 1996 speech by former Fed Chair Alan Greenspan as “irrational exuberance.” Internet companies saw their stock prices skyrocket, regardless of their actual prospects or profits. While markets have been buoyant this year, the tech-heavy NASDAQ has not matched its massive gain seen in the year 1999. In hindsight, that was a bubble; what about today?

nasdaq

current tech boom

Valuing a stock requires subjective judgment about its future returns. There is no line beyond which an asset is empirically overpriced. Measures like the ratio of a stock’s prices to earnings (P/E) can suggest when valuations are stretched; lofty P/E values have preceded past corrections. Aggregated P/E ratios like the Shiller Cyclically Adjusted P/E (CAPE) are now approaching the highs seen as markets peaked in 2000.

The 1990s rally wasn’t only speculation. Businesses were investing in on-premise data centers and redeveloping older systems to survive the Y2K logic fault. Households and schools were buying PCs and getting online. Telecommunications firms were building networks to provide capacity for all of this growing demand. A true shift was underway in how jobs were done and how people communicated.

Today’s rally is led by artificial intelligence (AI), both the firms developing AI models and those providing the computing and power infrastructure to run them. Rapid AI advancements are fueling speculation of how much they may transform our lives, and thus speculation in this sector.