Broadcom's Guidance Miss Triggers $1 Trillion Chip Selloff — Nasdaq's Worst Day Since April 2025

On the evening of June 3, Broadcom reported Q2 FY26 results: revenue of $22.2B (+48% YoY), AI revenue of $10.8B — more than double a year ago. By any ordinary measure, an outstanding quarter. But the company guided Q3 AI chip sales to ~$16B against analyst consensus of $17.2B, without raising its full-year AI revenue forecast. The market's response was swift: on June 5 the Nasdaq fell 4.18% — its worst single session since the April 2025 Liberation Day tariff shock — erasing more than $1 trillion in semiconductor-sector market capitalisation in one day.

Why 'Good but Not Good Enough' Is Dangerous

To understand what happened, you need to grasp how valuation works in high-multiple sectors. Broadcom's shares trade at a significant premium to current earnings — not because the company earns well today, but because the market is pricing in rapid future growth. When that expected future looks even slightly dimmer — even if absolute results are strong — the multiple contracts and the price falls.

This is fundamentally different from a conventional earnings miss. At a company with a P/E of 10×, a 10% earnings shortfall might knock 10% off the stock. At a company with a P/E of 35×, the same relative disappointment can hit 25–40% — because most of the value is borrowed from the future, which now looks a little less bright.

Broadcom as a Barometer of the AI Capex Cycle

Broadcom's six AI chip customers — Google, Meta, OpenAI, Anthropic, Microsoft, and Amazon — make its quarterly guidance a direct proxy for how much the world's largest technology spenders plan to invest in AI hardware over the next three months.

When Broadcom guides $16B instead of the expected $17.2B, it is not a disaster. But it is the first visible deceleration signal after several quarters of acceleration. For a market that was discounting exponentially growing AI capex, even a modest deviation from trend is enough to trigger a large-scale repricing.

The Scale of the Selloff: Why the Whole Sector Fell

Broadcom pulled the trigger, but the entire sector suffered: Micron –17%, AMD –12.6%, Intel –9%, Nvidia –6%, Marvell –8%. This is a textbook example of sector correlation during panic selling — even companies whose own fundamentals were intact lost value as funds liquidated entire technology blocks.

In South Korea, where semiconductors represent a large share of the equity market, the KOSPI opened down 3.7% and triggered the Korea Exchange's sidecar circuit-breaker mechanism — an automatic five-minute trading halt when KOSPI200 futures fall more than 5%. SK Hynix and Samsung followed US names down before New York had even opened.

What This Means for Investors

First, high-multiple sectors carry asymmetric risk. Shares rise slowly on good news and fall sharply on disappointment. This is not an anomaly — it is the mathematics of discounting future cash flows. The higher the multiple, the more of the stock's value depends on future rather than current results.

Second, do not confuse 'great business' with 'correctly priced stock right now'. Broadcom is an exceptional company with $10.8B in AI revenue in a single quarter. But 'exceptional company' and 'stock at a fair price' are different things. When expectations are elevated, even an excellent result can fall short.

Third, sector diversification genuinely reduces risk. If your portfolio has heavy semiconductor concentration through technology ETFs or Nasdaq 100 funds, a single Broadcom guidance line can erase several percent of value in a day.

Fourth, global market interconnection is not a theory. The Korean market reacted to a US earnings report before New York trading even opened. For investors anywhere in the world, this means that US earnings season is not 'news for Americans.'

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Sources: CNBC — Broadcom Q2 2026 earnings · StockTitan — Broadcom Q2 press release · TheStreet — Nasdaq falls 4%, chip selloff wipes $1T · Yahoo Finance — Chip selloff erases over $1 trillion · Saxo — Asia Market Quick Take June 5