AMD stock slumps 7% on earnings miss, China AI chip concerns

What are the implications of this earnings miss on AMD's valuation multiples (P/E, EV/EBITDA) and price targets set by analysts? What impact could potential geopolitical or regulatory issues in China have on AMD's supply chain and revenue? How does this earnings miss compare to AMD's performance in the same quarter last year? How does AMD's earnings and revenue growth compare to key competitors such as Nvidia, Intel, and other AI chip makers? What guidance did AMD provide for future quarters, and how does it compare to market expectations? Are there any changes in AMD's product roadmap, especially for AI-focused chips, that could impact future earnings? How could the delayed restart of China shipments affect AMD's revenue outlook for the next fiscal quarter? How did the earnings surprise affect short interest and options activity for AMD? What are the details of the concerns regarding the timing of the China AI chip shipments? How significant is the earnings miss relative to analysts' expectations and consensus estimates? What specific factors drove the 7% drop in AMD's stock price immediately after the announcement? What is the expected reaction of institutional investors and hedge funds to this earnings miss?