The Invesco QQQ Trust (QQQ) closed at $520.83 on January 29, 2025, down 0.19% as the Nasdaq-100 Index, which it tracks, fell by 0.24% to 21,411.46. Despite the decline, the tech-heavy index saw significant investor interest, with a notable $4.3 billion inflow into QQQ, marking the largest since 2021. This influx was driven by strong earnings reports from semiconductor companies, which bolstered investor confidence in the tech sector. T-Mobile US, a major component of the index, reported fourth-quarter results that exceeded expectations, contributing to the positive sentiment. Additionally, investors are closely watching the Federal Reserve's interest rate decision, which could impact market dynamics.