Advanced Micro Devices (AMD) shares slid 8.0% in morning trading to $507.77, erasing much of the sharp gains from the prior session as a broad-based selloff in semiconductor stocks took hold. Traders stepped away from high-multiple chip names amid renewed uncertainty about whether spending on AI infrastructure will be sufficient to justify the sector's lofty valuations.
The move follows a one-day rally that was sparked by a higher price target from Goldman Sachs - raised to $640 - and a placement on Citi's catalyst watch-list. That uptick left AMD technically extended, making the stock vulnerable to a rapid reversal once investor sentiment shifted.
The weakness was widespread across the chip industry rather than isolated to AMD. European semiconductor firms recorded steep declines, with ASML, STMicroelectronics, Infineon, and Soitec among those posting sharp losses. In Korea, Samsung Electronics dropped roughly 9% despite reporting a near-record operating profit for the second quarter, a "sell the news" reaction that amplified selling pressure for chip names globally.
U.S.-listed chip-related names also suffered. The VanEck Semiconductor ETF fell more than 5% on the session while individual components such as Micron, KLA, Marvell, and Broadcom were notable decliners. Reports that Ark Invest trimmed its stake in AMD added to the company-specific headwind, although the broader sector dynamics were the dominant force.
Market-wide shifts compounded the sector slump. The Nasdaq Composite declined about 1.4% while the S&P 500 lost roughly 0.5% as investors rotated out of AI-linked technology stocks and moved toward defensive areas like healthcare and financials. AMD's very high valuation - trading at roughly 184 times trailing earnings - makes it particularly sensitive to such risk-off moves.
AMD had an exceptional run earlier this year, rising by more than 130% in the first half of 2026. That extraordinary advance left limited room for error when market sentiment turned cautious. The stock opened the session at $515.94 and fell to an intraday low of $506.80, well below its 52-week high of $584.73.
With AMD scheduled to report quarterly results in early August, investors will be closely monitoring any indicators that demand for AI accelerators and data-center momentum remain intact enough to support the company's elevated multiple. For now, the confluence of a sector-wide sentiment reversal, profit-taking after yesterday's outsized rally, and a broader market risk-off tilt has pushed the stock significantly lower.
Key points
- AMD shares fell 8.0% to $507.77 in morning trading, reversing much of the prior session's rally.
- A sweeping selloff in semiconductor stocks - including steep losses among European chipmakers and a roughly 9% drop in Samsung Electronics - drove the move.
- Macro rotation out of AI-related tech into defensive sectors, combined with AMD's high valuation of roughly 184 times trailing earnings, heightened sensitivity to changing investor risk appetite.
Risks and uncertainties
- Persistence of sector-wide selling could further pressure chip stocks and related technology names if doubts about AI infrastructure spending continue to grow.
- Profit-taking after recent substantial gains leaves high-multiple stocks like AMD vulnerable to sharp reversals when sentiment shifts.
- Upcoming quarterly earnings in early August represent an uncertain catalyst - results that disappoint on signs of slowing demand could widen the selloff, particularly for companies tied to AI and data-center spending.