S&P 500 Tech Sector SPDR (XLK) ETF: A Gauge for Tech Winners and Losers in 2026

The S&P 500 Technology Sector SPDR (XLK) has pulled back after a strong start to 2026, with some of its components experiencing significant declines. The tech sector's high valuations and demand for tangible results from AI investments are being closely monitored. The performance gap between winners and losers within XLK's 70 holdings is widening, with Sandisk (SNDK) experiencing a 16% dive on Wednesday. The forward-looking view of these stocks will be crucial in determining if the tech sector is in a "post-peak" environment or just experiencing a pause.