The Vanguard S&P 500 ETF (VOO) closed down 1.04% at $547.08 on December 27, as the S&P 500 index fell 1.11% to 5,970.84, driven by a selloff in major technology stocks. The so-called "Magnificent Seven" tech giants, including Apple, Microsoft, Amazon, and Meta, each saw declines of at least 2%, contributing significantly to the broader market's downturn. This pullback in tech stocks, which have been pivotal in driving the S&P 500's gains this year, was exacerbated by thin trading volumes typical of the holiday period, amplifying market volatility. Rising Treasury yields, with the 10-year note climbing to 4.63%, also pressured equities by dampening risk appetite. The absence of significant earnings or economic data left the market vulnerable to profit-taking, particularly in high-flying tech names.