US Stock of the Day | Kabutaro & Friends

On September 9, 2026, the most talked-about US stock online is NVIDIA<NVDA>.
Background: On September 6, CEO Jensen Huang posted on X: "From ChatGPT to o1 to Astra in four years. AGI has arrived." He said OpenAI's newly released GPT-6 Astra was trained on more than 100,000 Grace Blackwell NVLink72 systems, after an original post citing 300,000 was deleted and corrected, and added that another 400,000 GPUs are coming online next. On OpenAI's own benchmarks, Astra scored 98% on FrontierMath Tier 4 and 99.9% on ARC-AGI-3. OpenAI itself stopped short of calling the model AGI, with President Greg Brockman saying only "welcome to the AGI era," and researchers have criticized the claim for lacking clear definitions and evidence. When markets reopened on September 8 after Labor Day, NVIDIA shares fell about 2%, while OpenAI-linked names rose, with CoreWeave up 15% and SoftBank Group up 2%.