Here’s a number that should make you do a double-take: the technology sector now represents 37% of the S&P 500’s total market share. That exceeds the approximately 35% peak hit during the dot-com bubble in 2000.

But here’s the twist. Despite the catastrophic collapse that followed that earlier peak, tech stocks have quietly delivered annualized returns exceeding 9% since the bubble burst. The sector’s total market capitalization now sits at a record $29 trillion.

The numbers behind the new tech dominance

The Nasdaq Composite peaked at 5,048.62 on March 10, 2000. What followed was a decline of more than 75% by October 2002, vaporizing trillions in market value.

Fast forward to today, and tech’s share of the S&P 500 has actually surpassed that infamous high-water mark. The current forward price-to-earnings ratio for the S&P 500 sits at roughly 30x, well above the historical average of around 22x.

Yet the 9% annualized return figure, derived from a 20-year retrospective analysis, tells a more nuanced story. Even accounting for the dot-com crash, the 2008 financial crisis, and various other market corrections along the way, technology stocks have been among the most rewarding long-term holdings available.

This time is different, except when it isn’t

The dot-com era was defined by companies burning through venture capital with no clear path to profitability. Pets.com, Webvan, and dozens of others were valued on page views and vibes rather than revenue. Today’s dominant tech firms are, by contrast, enormously profitable enterprises with real cash flows, massive user bases, and diversified revenue streams.

That said, the current environment has its own version of speculative fever. AI-driven spending has become the dominant narrative pushing tech valuations higher, and the concentration of market gains in a narrow group of mega-cap names has drawn comparisons to the TMT (technology, media, and telecom) bubble.

The $29 trillion total market cap for tech stocks is a staggering figure. For context, that’s larger than the GDP of every country on earth except the US and China.

What this means for investors watching from the crypto sidelines

The concentration risk is particularly worth watching. A market where 37% of the S&P 500’s weight sits in a single sector is a market that’s vulnerable to sector-specific shocks.

The 9% annualized return since 2000 is a powerful argument for long-term technology exposure, but it required sitting through a 75% drawdown first.

The forward P/E ratio of 30x on the S&P 500 suggests that traditional equities are priced for perfection.