Macro Environment - The macroeconomic environment significantly influences the growth theme market, with a stable macroeconomic environment since the beginning of 2025 providing a conducive space for theme market development [2][3] - In early 2023, the adjustment of pandemic policies led to a rapid release of pent-up demand, creating a "strong expectation, weak reality" macro environment that improved market risk appetite and supported the ChatGPT theme market [2] - By early 2024, economic recovery momentum weakened, leading to a constrained space for the SORA theme market due to pressures from slowing consumption recovery and real estate investment [2] - The current macro environment characterized by "steady recovery + policy support" has led to a neutral overall expectation for economic growth, which is favorable for the further development of the current technology theme market [2][3] Style Switching - Sustainable fundamental expectations are necessary for the further expansion of the market, as seen in the divergence between the ChatGPT theme and growth/profitability styles in 2023 [3][4] - The SORA market in 2024 differed from the previous round as market expectations for net profit growth in the AI sector significantly increased, leading to a simultaneous strengthening of growth styles [3][4] - The strong performance of defensive styles such as dividends and low valuations from 2022 to mid-2024 impacted the theme market, with the ChatGPT theme failing to boost growth styles [4] - The current growth style has shown strength after a pullback in January, with a high degree of industry diffusion, suggesting a potential extension of the current market duration while monitoring the rebound of defensive styles [4]