NVIDIA faces skepticism over growth sustainability as AI infrastructure investment shifts from GPUs to power and optical systems

NVIDIA Q4 FY2026 revenue hit $68.13 billion, up 73% YoY, with Q1 FY2027 guidance at roughly $78.0 billion. Data Center Networking revenue jumped 263% YoY. However, a CNBC Fast Money panelist noted the stock is up around 83% over one year and 1,352% over the past five years, with the core tension that Hyperscaler CapEx is modeled to grow roughly 10% while Jensen Huang guides to 40%.

The structural shift in AI infrastructure spending has moved from GPUs to power, infrastructure, and optics. Corning's Optical Communications revenue jumped 36% YoY to $1.85 billion in Q1 FY2026, with CEO Wendell Weeks confirming two new hyperscaler deals "similar in size and duration" to the up-to-$6 billion Meta agreement.

NVIDIA faces emerging competition: AMD guided Q2 to ~$11.2 billion and is deploying up to 6 gigawatts of Instinct GPUs with Meta, while NVIDIA's own customers are designing silicon. AMD is up more than 94% year to date.