Broadcom's strong earnings beat still triggered a 12.6% stock drop, signaling that AI chip investors now demand accelerating growth—not merely excellent results.

What happened: Broadcom reported Q2 revenue of $22.19 billion（約3.6兆円） (up 47.9% year over year) and AI semiconductor revenue of $10.80 billion（約1.7兆円） (up 143%), with free cash flow hitting a record $10.26 billion（約1.6兆円）. Despite these results, the stock fell 12.59% on the same day because Q3 AI guidance of $16.00 billion（約2.6兆円） trailed the Street's whisper expectation of $17.2 billion（約2.8兆円）. The sell-off rippled across the chip sector, erasing roughly $1.3 trillion（約210兆円） in market value.

Why it matters: Broadcom is the second-largest AI chip supplier to hyperscalers (large cloud providers) behind NVIDIA. When a company posting triple-digit growth gets sold for guidance that merely meets consensus, it signals that the market now prices in accelerating growth above published guidance. Investors had expected AI semiconductor revenue to reach over $100 billion（約16兆円） by 2027; any indication of slower acceleration resets valuations. Stock multiples assume the AI spending curve keeps steepening, so in-line guidance reads as a downgrade.

What to watch: At the current price of $383 (down 20.4% from peak), the article rates the stock a Hold. Bookings of over $30 billion（約4.8兆円） against $10.8 billion（約1.7兆円） in quarterly shipments and multi-gigawatt commitments from Google, Anthropic, OpenAI, and Meta suggest the underlying business remains strong. However, a second consecutive quarter of guidance that matches whisper numbers rather than beats them, or any sign that hyperscaler capital spending is slowing, would likely trigger a downgrade to Sell.