Ahead of Nvidia's upcoming earnings report, retail investors have shown significant bullish sentiment, purchasing record amounts of Nvidia shares and related exchange-traded funds (ETFs). Analysis from JPMorgan and Vanda Research indicates that individual investors, often referred to as 'mom-and-pop' investors, have increasingly favored Nvidia over Tesla, leading to a surge in retail purchases. In contrast, institutional investors, including mutual and hedge funds, are reportedly the most underweight on technology stocks in a decade, reflecting a cautious stance. Additionally, there has been a notable increase in the number of shares outstanding in leveraged inverse ETFs, suggesting growing investor anxiety regarding Nvidia's ability to meet earnings expectations. This trend indicates a split sentiment among retail and institutional investors as Nvidia approaches its earnings announcement.