Advanced Micro Devices, Inc. closed at $544.78 on September 18, 2026, a gain of 6.22% over the prior 24 hours. The move added to an already strong stretch of trading for the chipmaker, which has now risen 8.20% over the past seven days.
The broader 30-day picture reinforces the upward trend, with AMD shares advancing 16.64% over that period. The sustained gains have lifted the company's market capitalization to $836.64 billion.
The single-session jump of more than six percent represents one of the more notable daily moves in the stock's recent history, pushing AMD further into record-high territory by the figures reported. The rally places AMD among the stronger performers in the semiconductor sector over the timeframe covered by the data.
No specific catalyst was identified in the available data to account for the day's price action. The figures reflect closing market data as of September 18, 2026.
