[Analysis: Retail investors are dominating the U.S. stock options market, with large-scale dip buying observed last week] BlockBeats reported on November 13 that KobeissiLetter released an analysis of the U.S. stock market. In the third quarter of 2025, the total quarterly options trading volume exceeded 3.5 billion contracts for the first time, doubling the total options trading volume over the past five years. Previously, retail investor participation in U.S. stocks reached a record 55% last quarter, indicating that retail investors now account for the majority of market trading. Since 2023, this percentage has increased by 10 percentage points, compared to a 5-year average of approximately 49%. Meanwhile, during last week's market pullback, retail capital flows saw one of the largest dip-buying events in history, with retail investors dominating the U.S. stock options market.