🔴 Semiconductors ETF (SMH3.L) is trading 5.44% down on September 15, 2026 after frontier-AI slowdown concerns

SMH3.L is trading at $13.90 (-5.44%) as concerns over slower frontier-AI development drive a broad semiconductor and AI-infrastructure selloff.

• Anthropic, OpenAI, and xAI leaders urged slower frontier-AI development, raising concerns about future data-center and chip spending.
• The Philadelphia Semiconductor Index fell 5.2%, while NVIDIA, AMD, and Micron also declined sharply on September 14.
• The leveraged structure amplified the underlying sector move.