I've read a lot of summaries from bloggers about Huang Jiaozhu's GTC speech today, but I feel like none of them really hit the key points. The key point is actually just one: Nvidia RTX Spark / N1X chip. The biggest bullish factor is: ARM. Why is this bullish for ARM? The core logic has three layers. First layer: PC architecture narrative. In the past, the biggest issue with Windows on Arm was that it was driven solely by Qualcomm, making it hard for the ecosystem to break out. Now, with Nvidia + Microsoft + MediaTek + multiple OEMs pushing together, it's essentially upgrading the narrative of "Arm PC" from low-power office laptops to "high-performance AI PCs / creator PCs / local AI workstations." The Verge believes Nvidia, Microsoft, and Arm are jointly hyping "a new era of PC," and suggests this breaks Qualcomm's de facto monopoly on Windows on Arm. Second layer: royalty per chip. ARM's business model is license fees + royalties per chip. In its FY26 Q3 investor materials, Arm stated that royalty revenue grew 27% year-over-year, driven by the adoption of higher royalty rate per chip technologies like Armv9 and CSS, as well as increased use of Arm chips in data centers. In other words, for ARM, Nvidia's high ASP, high core count, high-end AI PC SoC is far more valuable than ordinary low-cost IoT/mobile chips. Third layer: ecosystem endorsement. Nvidia entering the Windows PC main processor market is essentially helping ARM validate a long-term bull case: that Arm architecture isn't just suitable for phones and low-power devices, but can also enter high-performance PCs, local AI, AI workstations, and even further into data center CPUs. Reuters also mentioned Nvidia's Vera CPU being adopted by OpenAI, Anthropic, SpaceX, etc., and Jensen Huang emphasized that CPU/PC products are an important growth direction for the future. In terms of competitive landscape, the most directly pressured player is Qualcomm, whose differentiation in Windows on Arm is being taken by Nvidia. Intel/AMD will also face challenges, but in the short term, they can still rely on the x86 software ecosystem and mainstream PC shipments to hold their ground. For ARM, this essentially means gaining a heavyweight customer to help it penetrate the PC market. Of course, this is a short-term bullish catalyst. Whether it can translate into long-term profits for ARM depends on the actual shipment volume of AI PCs. The market has already responded: pre-market ARM is up 14%, while Qualcomm is down 7%.