Core Viewpoint - The continuous wave of option selling by investors is slowing down the momentum of U.S. stocks reaching historical highs, creating a "friction effect" on market prices, particularly from short-term options and the "iron condor strategy" [1][2]. Group 1: Option Selling Strategies - Since 2025, various option selling strategies have gained popularity, including covered call strategies on ETFs and systematic zero-day option trading, with market makers rebalancing positions daily [2]. - Investors have shown a preference for selling call options over put options in recent weeks, with zero to five-day options gaining significant influence [2]. - The iron condor strategy, popular among retail investors, aims to profit from time decay when the underlying asset's price remains within a certain range [2][3]. Group 2: Market Maker Dynamics - Market makers' gamma exposure from zero-day options changes dynamically throughout trading sessions, with most trades stemming from investors selling options [4]. - The most extreme positions for market makers are at higher call strike prices, where volatility is lower, leading to more pronounced hedging impacts [4]. - The largest risk is in the upward direction, as market makers manage significant positive gamma exposure from retail traders selling call options, making upward price movements more challenging [4]. Group 3: Trading Patterns and Price Impact - The gamma of market makers can lead to substantial buying or selling requirements based on minor price changes, particularly in the last ten minutes before market close [4]. - There is a tendency for the market to experience upward gaps after the expiration of options risk post-market close, as the hedging demands from market makers dissipate [4]. - Daily trading strategies, such as buying one-day options at market close and selling them at the next open, can exploit price distortions due to the resetting of gamma positions [5]. Group 4: Sustainability Concerns - There are doubts regarding the sustainability of the iron condor strategy's market impact, with some experts suggesting it is just one of many factors influencing market direction [6]. - Concerns exist that if these systematic option selling flows are primarily driven by retail investors, their sustainability may be questionable [6]. - Systematic selling strategies may perform well in low-volatility environments but could face significant losses during periods of high volatility, leading to potential investor impatience and withdrawals [6].

Group 1: Global Derivatives Market Trends - The global derivatives market is focusing on all-day trading to better serve global investors and reduce weekend trading risks, with CME Group providing trading services for five days a week and 23 hours a day [1] - CME Group plans to launch 24/7 trading for cryptocurrency futures and options in early 2026, pending regulatory approval [1] - The SPAN system, a standard for margin calculation, is undergoing a significant upgrade to SPAN 2, which aims to integrate new modeling, self-adjusting reports, and margin replication features [1] Group 2: Regulatory Changes and Clearing Services - New SEC regulations will require centralized clearing for U.S. Treasury and repo market transactions, with compliance deadlines set for December 31, 2026, and June 30, 2027, respectively [2] - CME Group has submitted an application to establish an independent clearinghouse to provide direct securities clearing services, addressing the need for enhanced clearing capabilities and operational resilience [2] - CME Group is migrating its core trading and clearing services to Google Cloud to leverage scalability, resilience, and advanced technology capabilities [2] Group 3: Market Data and Collaboration - CME Group is collaborating with key technology partners in China, such as Yisheng International and Shanghai Pengbo Financial Information Co., to meet the growing demand for market data among Chinese investors [2] - Chinese investors utilize CME Group's market data as a critical reference tool for making informed decisions in domestic futures trading and effectively managing risk exposure [2] Group 4: Product Innovation - The rise of zero-day options is highlighted, offering precise hedging opportunities but also presenting high volatility, necessitating enhanced investor education and risk disclosure [3] - A strong, stable, and deep Asia-Pacific futures ecosystem is deemed crucial for regional economic development, with recommendations for China to focus on developing trading technologies that seamlessly integrate with new cloud services [3]

Group 1 - Retail investors are currently dominating the U.S. stock market, as indicated by major Wall Street institutions like JPMorgan, Barclays, and Charles Schwab [1][2][3] - Barclays' proprietary stock frenzy index shows that the proportion of stocks in the "frenzy zone" is reaching its highest level of the year, reflecting the aggressive use of zero-day options by retail investors [2][4] - The best-performing stocks since the market low on April 9 are concentrated in unprofitable tech stocks and heavily shorted stocks, showcasing the distinct investment preferences of retail investors [1][3] Group 2 - The popularity of zero-day options among retail investors indicates a significant shift in risk appetite, allowing them to gain high leverage with relatively small capital [2][4] - Institutional investors have been forced to adjust their portfolios due to the active participation of retail investors, although they have not adopted aggressive risk-taking strategies [3][4] - The decline in market volatility, driven by stabilizing economic data such as GDP and inflation, is attracting more funds from volatility-controlled funds into the stock market [4]