Broadcom Stock Fell 4.35%: Was It OpenAI, Anthropic or Both?

The obvious reading is that Thursday’s drop priced Broadcom’s exposure to OpenAI and Anthropic at once. It did not. The drop was about OpenAI. Broadcom, Nasdaq ticker AVGO, closed at $360.14 on Thursday 8 October 2026, down 4.35 percent from Wednesday’s $376.51 close in the Nasdaq series saved for this piece. OpenAI’s annualized revenue was put at about $50 billion that session, against a widely reported $68 billion figure that included partners’ gross revenue for comparison with Anthropic. Friday 9 October, the last official US cash close, finished at $361.54, up 0.39 percent, or $1.40. Anthropic’s loan of up to $42 billion was reported on 1 October. From that session’s $343.64 close to Wednesday’s $376.51, AVGO rose 9.57 percent.