Technology stocks sold off sharply, with the XLK ETF down significantly, driven by fears of increased regulation and a potential slowdown in the artificial intelligence sector. Following Democratic victories in the U.S. midterm elections, investors are concerned about a clampdown on the expansion of data centers, which are critical for AI development. This has triggered a broad sell-off, particularly impacting semiconductor stocks like NVIDIA and AMD, and has created widespread negative sentiment across the market.