Broadcom’s sell-off just entered megacap history

Broadcom (AVGO) closed down 12.6% Thursday, erasing $280 billion in market value, putting it among the biggest single-stock wipeouts of the megacap era. The trigger was Broadcom’s AI outlook. The company beat quarterly earnings expectations, but its AI chip sales forecast disappointed investors after a huge run in the stock, pressuring the broader chip trade. That’s the hard part about the AI trade right now. The business can still be growing fast, and the stock can still get hit if expectations are even faster. Broadcom’s drop ranks near the top in recent megacap history. In a Yahoo Finance analysis of the current top megacap stocks going back to 2019, a $280 billion market-cap loss would trail only Nvidia (NVDA), Microsoft (MSFT), and Apple (AAPL) among the largest one-day single-stock wipeouts in the group. That puts Broadcom’s earnings reaction in a different category. This isn’t just a normal chip-stock reset — it is a reminder that AI winners have become so large that one disappointing forecast can erase hundreds of billions of dollars in a single session. The next question is whether investors should buy the drop, sell, or wait. Broadcom’s own history leans toward patience, not panic. Since 2009, Broadcom has had 39 one-day drops of 6% or more, according to Yahoo Finance analysis. The stock was higher one month later nearly 80% of the time, higher three months later nearly 90% of the time, and higher one year later in all but one case.

The median returns also favored dip buyers. After those big one-day drops, Broadcom’s median return was about 8% after one month, 20% after three months, 35% after six months, and 61% after one year. For investors, the read is simple: Broadcom’s big drops have usually turned into opportunities, but history argues for watching whether buyers show up after the earnings shock — not assuming they have to show up on day one.