Why is Broadcom stock sliding today?

Broadcom stock slid 3.0% in after-hours trading after the chipmaker’s fiscal fourth-quarter revenue guidance of $34.8 billion disappointed investors who had been expecting a more aggressive forward outlook following its Q3 FY2026 earnings release after the closing bell today.

While the Q3 results themselves were broadly in line with Wall Street’s consensus — which had projected revenue of approximately $29.4 billion and adjusted EPS near $3.22 — it was the forward guidance that set the tone for the after-hours reaction.

The sell-off echoed a pattern that has become familiar for Broadcom investors: the company delivered strong headline numbers, but the market’s focus shifted immediately to what comes next.

Morgan Stanley, which maintained an Overweight rating ahead of the print, had explicitly warned that the central debate was whether fiscal 2027 AI revenue would reach $150 billion — a figure well above the bank’s own $120 billion forecast — and that any gap between results and those elevated expectations could drive near-term volatility. With the Q4 guidance landing below the whisper number, that warning proved prescient.

The broader market provided little cushion. The S&P 500 and Nasdaq both edged fractionally lower on the day, weighed in part by continued pressure from elevated Treasury yields following Fed Chair Kevin Warsh’s hawkish comments at Jackson Hole last Friday, where he signaled the Fed still has "work to do" on inflation. High-valuation semiconductor names are particularly sensitive to rising rate expectations, compounding the headwind from the guidance miss. Broadcom’s 52-week range of $289.96 to $495 underscores how much ground the stock had already surrendered from its peak.

Taken together, a forward revenue figure that fell short of the market’s loftiest projections, a backdrop of hawkish monetary policy signals, and fragile investor sentiment following a roughly 23% drawdown from the stock’s all-time high created the conditions for today’s after-hours pullback — a reminder that for Broadcom, beating the quarter is no longer enough if the outlook doesn’t match Wall Street’s most ambitious AI revenue scenarios.