Key Points AMD stock closed at a record $615.52 on Monday, Sept. 21, and the company is now worth more than $1 trillion. AMD has split its stock six times, most recently a 2-for-1 split in August 2000. A split would divide the share price and multiply the share count, leaving profits, ownership stakes, and the stock's valuation unchanged. 10 stocks we like better than Advanced Micro Devices › Advanced Micro Devices (NASDAQ:AMD) stock closed at $615.52 on Monday, Sept. 21 -- a record, and the chipmaker's first close above the $600 mark. Monday's nearly 10% surge also made AMD a trillion-dollar company for the first time. And the run isn't cooling. Shares traded near $621 as of this writing, up 187% in 2026 through Monday's close.
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