The Echoes of 1987: Are Today’s Mega-IPOs Signaling a Tech Reckoning?

By Barry Eichengreen
July 3, 2026

The current financial landscape is defined by a relentless, high-velocity wave of mega-IPOs. From breakthroughs in generative artificial intelligence to the privatization of orbital logistics and deep-space infrastructure, capital markets are currently absorbing a level of speculative fervor not seen in a generation. As valuations soar into the stratosphere, market participants are scrambling for historical context, leading to what can only be described as a "veritable analogy-fest."

Analysts are debating whether we are witnessing a replay of the 1870s railway boom—which ended in a painful systemic collapse—or the more gradual, transformative electrification boom of the 1890s. Yet, for those looking for a cautionary tale that resonates with the structural mechanics of modern equity markets, the most apposite and sobering parallel is not found in the 19th century, but in the late 1980s: the IPO of Nippon Telegraph and Telephone (NTT) in February 1987.

The Main Facts: The Illusion of Perpetual Growth

The current IPO environment is underpinned by a narrative of "infinite scalability." Companies involved in AI infrastructure and space-based telecommunications argue that their technology is not merely a product, but a foundational layer for the next century of economic activity. This mirrors the rhetoric surrounding NTT in the mid-1980s.

When the Japanese government privatized NTT, it was billed as the crown jewel of the digital revolution. The IPO was the largest in history at the time, and the shares were snapped up by a public convinced that telecommunications was a "can’t-lose" sector. The stock surged immediately, driving the Nikkei 225 to heights that defied traditional valuation metrics.

However, the reality of today’s mega-IPOs is that they are frequently decoupling from the underlying productivity gains they promise to deliver. Just as the NTT frenzy masked the underlying fragility of the Japanese "bubble economy," today’s IPOs often prioritize narrative-driven valuation over long-term cash flow sustainability. The question remains: at what point does the cost of servicing the capital required for these "moonshot" technologies exceed the actual economic value generated?

Chronology: From Euphoria to Structural Correction

To understand the trajectory of the current market, we must look at the timeline of the 1987 NTT event, which serves as a blueprint for how speculative bubbles regarding "foundational technologies" typically unwind:

• 1985–1986 (The Buildup): The Japanese government initiates the privatization of NTT. Institutional and retail interest hits a fever pitch. The narrative centers on Japan’s dominance in the global information economy.
• February 1987 (The IPO): NTT goes public. The shares are massively oversubscribed. The listing serves as the primary engine for the Nikkei’s unprecedented ascent.
• Late 1987 (The Warning Signs): While the market remains buoyant, the disconnect between NTT’s earnings and its share price begins to raise eyebrows among central bankers. The "wealth effect" of the IPO fuels a broader, unsustainable consumption boom.
• 1989–1990 (The Reckoning): The Bank of Japan begins a series of interest rate hikes to curb inflation and address the bubble. The NTT share price, along with the broader market, collapses. It would take decades for those initial investors to break even.

Today, we are currently in the "1986 phase" of this cycle—where the technology is undeniably real, the impact is potentially transformative, but the price of entry has become untethered from reality.

Supporting Data: Valuation vs. Reality

The financial data surrounding the current wave of mega-IPOs reveals a stark divergence between "Growth-to-Market" and "Profitability-to-Market" ratios.

Current AI infrastructure firms are trading at price-to-earnings multiples that assume a near-monopoly status and the total absence of future competition. For example, the total capital expenditure (CapEx) currently being poured into data centers and orbital arrays across the tech sector has reached a trillion-dollar threshold—a figure that, historically, precedes a "capital expenditure glut."

In the 1870s railway boom, the excess capacity led to a collapse in freight rates, rendering the railways unable to service their debt. Similarly, if the current AI-driven IPOs result in a surplus of computing power that drives the price of "AI intelligence" toward zero, the revenue models of these newly minted public companies will evaporate overnight. Data from the Bank for International Settlements (BIS) suggests that current levels of debt-fueled equity expansion in the technology sector are hovering at levels unseen since the 2000 Dot-com crash.

Official Responses: The Regulatory Tightrope

Central banks and financial regulators are currently navigating a delicate tightrope. In the U.S. and the EU, regulators are concerned that the "AI IPO bubble" is creating systemic risk by concentrating capital in a handful of high-beta tech assets.

The Federal Reserve has recently hinted at a "higher for longer" interest rate environment, specifically designed to test the viability of companies that rely on cheap, abundant capital to sustain their growth narratives. In official briefings, policymakers have expressed concern that the "NTT effect"—where a single sector or company becomes a proxy for the entire national economy—could lead to a broader market contraction should those firms fail to meet their inflated growth targets.

"We are watching the concentration of assets in the technology sector with interest," noted a senior official at the Financial Stability Board last week. "History tells us that when IPO markets are driven by sentiment rather than cash-flow fundamentals, the correction is often both rapid and indiscriminate."

Implications: Preparing for the Post-Euphoria Era

The primary implication of this analogy is that while the technologies being brought to market today—AI, space exploration, and advanced automation—will almost certainly define the 21st century, the companies being brought to market today may not be the ones to reap the rewards.

Just as the early railway pioneers were largely wiped out, only for the infrastructure they built to enable the subsequent industrial boom, the current crop of tech mega-IPOs may be setting the stage for a "great clearing." Investors must distinguish between the technology (which is revolutionary) and the securities (which are speculative).

Strategic Lessons for the Modern Investor:

1. Beware of Monopolistic Assumptions: Just because a technology is foundational does not mean the current market leaders will maintain their position. Competition is the great equalizer.
2. Focus on Cash Flow Utility: Avoid companies that are "building for the sake of building." Look for firms with clear paths to monetization that do not rely on endless capital infusions.
3. The Interest Rate Sensitivity: Much of the current tech valuation relies on the assumption of low discount rates. Any sustained move in global interest rates will disproportionately impact these long-duration assets.

In conclusion, the NTT IPO of 1987 stands as a sobering reminder that even the most promising technological future can be priced at a level that guarantees investor losses. As we look at the current landscape of AI and space-sector IPOs, we should celebrate the innovation but remain deeply skeptical of the prices. The "analogy-fest" should not lead to complacency; it should lead to caution. The boom is real, but so is the gravity that eventually brings every market back to Earth.