The high-bandwidth memory landscape is gearing up for a major transition next year. Industry forecasts suggest HBM4 will command roughly 55% of the market revenue by 2026, while HBM3 variants still hold around 45% of the mix. This generational shift reflects the accelerating demand for advanced memory solutions in data centers and AI infrastructure. Key players in the semiconductor space—including major chipmakers and memory manufacturers—are positioning themselves ahead of this transition. Understanding this supply-side dynamic helps traders gauge hardware trends and the competitive positioning of companies exposed to memory technology development.