Broadcom's $100B AI bet rests on just six customers

When Broadcom reported fiscal second-quarter results in early June, CEO Hock Tan repeated the company's centerpiece forecast: fiscal 2027 AI semiconductor revenue of more than $100 billion. For perspective, Broadcom's total revenue over the past 12 months (including enterprise software) was about $75 billion, making the AI target bigger than the entire current business. The growth trajectory supports the ambition. AI semiconductor revenue reached $10.8 billion in fiscal Q2 2026 (ended May 3, 2026), up 143% year over year from roughly $4.4 billion a year earlier. Management guided for Q3 to accelerate further, with AI semiconductor revenue expected to grow over 200% year-over-year to $16.0 billion. Broadcom's fiscal Q2 overall was a record: total revenue rose 48% year over year to $22.2 billion, semiconductor solutions revenue climbed 79% to $15.0 billion, and free cash flow reached $10.3 billion, or 46% of revenue.

But the article's central insight concerns who is actually buying. Tan disclosed on the June earnings call that Broadcom has six core custom-chip customers. He named four: Alphabet's Google unit, Meta Platforms, Anthropic, and OpenAI. In December, Tan had revealed that Anthropic alone had placed a $10 billion order for AI chips. The two core customers Tan did not name have placed purchase orders totaling $6 billion so far, with shipments starting late this year and accelerating into 2027. Spreading the $100 billion target across six core buyers yields an average of more than $16 billion per customer in fiscal 2027—a striking concentration of revenue. The article frames this as the key risk: if even two of these six customers paused orders simultaneously, there is no deep customer base of smaller buyers to absorb the hit. Because custom AI chips are capital projects tied to synchronized customer build-outs and infrastructure timelines, even a modest delay in one customer's project—not a cancellation but a shift of shipments into a later year—could push billions of dollars of revenue forward.

Management has not articulated a scenario in which the forecast breaks, and Broadcom has beaten its own AI forecasts repeatedly. The market has already incorporated the growth: at about $428 per share, Broadcom trades at roughly 22 times the $19.50 per share analysts expect in fiscal 2027 earnings, versus a trailing GAAP ratio of about 71. In other words, the market has moved on to fiscal 2027 and priced in the ramp. Infrastructure software, at $7.2 billion a quarter and growing 9%, provides some steadiness. But the distinguishing observation is that a $2 trillion valuation underpinned by six budgets on synchronized timelines represents a different category of risk than a valuation spread across thousands of independent customers.