Check out the companies making the biggest moves in premarket trading: Broadcom — Shares tumbled 15% after the chipmaker reported fiscal second-quarter revenue of $22.19 billion, short of the $22.27 billion expected from analysts polled by LSEG. This marked Broadcom’s first revenue miss since December 2024. The company’s $7.18 billion infrastructure revenue also missed the $7.32 billion StreetAccount estimate. Semiconductor stocks — Shares of artificial-intelligence semiconductor companies slid following Broadcom’s results. Micron Technology slipped 6%, while Super Micro Computer fell 7%. Intel shed 4% and Advanced Micro Devices lost nearly 5%. Five Below — The discount retailer fell nearly 11%, even as the company provided a better-than-expected outlook. Second quarter revenue is expected to range from $1.18 billion to $1.2 billion, versus the StreetAccount estimate of $1.15 billion. Same-store sales for the period are expected to grow 7% to 9%, versus 4.4% consensus. Petco — Shares of the pet retailer dropped roughly 12% after Petco’s current-quarter forecast came in shy of Wall Street’s expectations. Petco sees second-quarter adjusted EBITDA ranging from $110 million to $112 million. The consensus sought EBITDA of $115 million, per StreetAccount. Robinhood , Coinbase and Strategy — The crypto-related companies moved lower following Bitcoin’s slump. The cryptocurr …