Broadcom’s Q4 Guidance Miss Sparks 6% Selloff Despite AI Revenue Surge

Broadcom Inc. (AVGO) experienced a sharp 6.18% decline in its stock price on September 3, 2026, following the release of its third-quarter fiscal 2026 earnings and fourth-quarter guidance after market close on September 2. The selloff came despite the company delivering robust quarterly results, powered by explosive growth in its AI semiconductor business. This episode underscores how even strong fundamental performance can be overshadowed by near-term guidance misses, triggering profit-taking in a high-flying tech stock.

Strong Q3 Results Highlight AI Semiconductor Boom

Broadcom reported Q3 revenue of $29.6 billion and non-GAAP diluted earnings per share (EPS) of $3.32, both comfortably beating analyst expectations. The standout driver was its AI semiconductor segment, which generated $16.7 billion in revenue, representing a staggering 221% year-over-year increase. This surge reflects Broadcom’s successful positioning as a key supplier to the rapidly expanding AI market, with customers like Anthropic and OpenAI driving demand.

CEO Hock Tan emphasized this momentum during the earnings call, projecting AI semiconductor revenue to accelerate further to $21.7 billion in Q4. Looking beyond the immediate quarter, Tan forecasted AI semiconductor revenue to reach approximately $115 billion in fiscal 2027 and an even more ambitious $230 billion in fiscal 2028. These projections suggest Broadcom is poised to capitalize on the AI sector’s explosive growth, potentially reshaping its revenue mix and long-term growth trajectory.

Q4 Revenue Guidance Misses Expectations

Despite the strong Q3 performance and bullish AI outlook, Broadcom’s guidance for fiscal Q4 revenue came in at about $34.8 billion, slightly below Wall Street’s consensus estimate of $35.03 billion. This modest shortfall on near-term revenue expectations triggered investor caution, leading to profit-taking that weighed heavily on the stock price.

The market reaction highlights a common dynamic in tech stocks where even minor guidance misses can provoke outsized moves, especially in a sector where growth expectations are high and valuations often reflect future potential. For Broadcom, the guidance miss raised questions about the pace at which its AI semiconductor business and other segments can sustain their rapid growth.

Sector Context: Is This a Broader Rotation or a Single-Name Shock?

Broadcom’s 6.18% drop contrasts with the broader technology sector’s modest gain of 0.20% on the same day, as measured by the XLK ETF. Other tech giants such as Tesla (+4.85%), Adobe (+3.71%), Meta (+3.41%), and Microsoft (+2.84%) all posted gains, suggesting that Broadcom’s decline is more a single-name shock and profit-taking event rather than part of a broader sector rotation.

This divergence indicates that investors remain generally positive on tech, particularly AI-driven names, but are selectively cautious on companies where guidance falls short or where near-term execution risks appear.

Long-Term Outlook and Analyst Sentiment

Despite the recent selloff, some analysts remain bullish on Broadcom’s long-term prospects. Morningstar, for example, maintains a 'Buy' rating on AVGO with a $650 fair value estimate as of September 3, 2026. The firm cites the credibility of Broadcom’s long-term AI revenue forecasts and the company’s strong competitive positioning as reasons the stock remains undervalued despite the recent pullback.

This analyst confidence underscores the tension between short-term market reactions and the fundamental growth story. While investors may be cautious about quarterly guidance misses, the massive AI revenue ramp projected through 2027 and 2028 could justify a higher valuation over time.

Implications for Investors and Market Participants

Broadcom’s recent price action serves as a reminder that in high-growth sectors, near-term guidance remains a critical driver of stock performance, even when long-term fundamentals are strong. Investors should weigh the company’s impressive AI semiconductor growth and optimistic outlook against the risks of execution and market volatility.

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Stock Movers and Sector Heatmap on September 3, 2026

What to Watch Next

Investors will be closely monitoring Broadcom’s execution in Q4, particularly whether AI semiconductor revenue meets or exceeds the $21.7 billion projection. Any signs of acceleration or deceleration in this segment will likely influence sentiment.

Additionally, upcoming earnings reports from major AI customers like Anthropic and OpenAI could provide further clues about demand trends. Given Broadcom’s significant exposure to these players, their performance and investment plans will be critical.

Finally, broader market conditions and tech sector momentum will shape the stock’s trajectory. While the current selloff appears isolated, shifts in investor appetite for growth stocks or changes in macroeconomic factors could alter the landscape.

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FAQ

Q: Why did Broadcom’s stock fall despite strong Q3 results? A: The stock dropped primarily due to a slight miss on Q4 revenue guidance, which fell short of analyst expectations, triggering profit-taking despite strong AI semiconductor growth.

Q: How significant is Broadcom’s AI semiconductor business? A: It is a major growth driver, with Q3 revenue up 221% year-over-year to $16.7 billion and projections to reach $115 billion in fiscal 2027 and $230 billion in 2028.

Q: Is the Broadcom selloff part of a wider tech sector downturn? A: No, the broader tech sector saw modest gains on the same day, indicating the decline is a single-name event rather than a sector-wide rotation.

Q: What should investors watch for going forward? A: Key indicators include Broadcom’s Q4 execution, AI customer demand trends, and broader tech sector momentum. Upcoming earnings and guidance updates will be critical.

For more on navigating stock markets and understanding sector moves, see our Market Today coverage and explore broker options at Stock Brokers.

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Sources: - Broadcom Inc. Q3 2026 Earnings and Guidance, PR Newswire - Broadcom AI Revenue Forecasts, Seeking Alpha - Morningstar Analyst Report on Broadcom - FXLeaders Market Commentary on AVGO - Finnhub Sector Heatmap Data

Sources

• Broadcom Inc. Announces Third Quarter Fiscal Year 2026 Financial Results and Quarterly Dividend - PR Newswire
• Broadcom forecasts $58B fiscal 2026 AI revenue and outlines $115B in 2027, $230B in 2028 - Seeking Alpha
• Broadcom Inc. Q3 2026 Earnings: Live Updates of $AVGO Earnings Call, Forecast
• Broadcom Earnings: Bullish 2028 Outlook - Morningstar
• AVGO Stock Falls Below $350 Testing Support as Investors Question the Outlook After Broadcom Earnings - FXLeaders