Shares of Rambus plunged 29.8% after Q1 results, as investors reacted to a guidance cut for the coming quarter and management's notably cautious outlook, particularly around growth visibility despite current momentum in AI and data center markets.

• Product revenue for Q1 reached $88 million, reflecting a 15% year-over-year increase and landing within prior guidance.
• Management projected only "double-digit product revenue growth" for Q2, while avoiding any update to annual outlook—signaling incremental caution on the near-term trajectory amidst AI enthusiasm.
• The prepared remarks emphasized ongoing product portfolio expansion and customer engagement, but lacked any specific commentary or commitments on margin trends or operating leverage.
• The chip business showed solid execution in core DDR5 RCD chips, yet market reaction points to investor disappointment with the pace of growth and conservatism on outlook despite the AI infrastructure opportunity.
• The company highlighted new LPDDR5X SOCAMM2 chipset launches and future LPDDR6 development, but investors appeared unmoved by longer-term initiatives in light of near-term guidance headwinds.