Recently, a series of events have occurred globally that may have a significant impact on the investment environment. Firstly, the Fed's dovish stance has caused market unease, and even though tech giants like Microsoft and Meta reported impressive earnings, it has not boosted overall market sentiment. Meanwhile, Hong Kong has begun implementing stablecoin regulation, prompting several large tech companies, including Ant Group and JD, to rush to apply for relevant licenses.

In the investment world, the renowned founder of Bridgewater Associates, Ray Dalio, announced a complete exit by selling all of his shares, marking the end of an era. On the international political stage, Trump proposed tariffs of 50% and 25% on Brazil and India, respectively, escalating trade tensions. From North Korea's side, Kim Yo-jong reiterated the country's stance on possessing nuclear weapons and took a tough stance against the United States. The political scene in South Korea is also turbulent, with prosecutors investigating the former president.

In terms of natural disasters, a strong earthquake of magnitude 8.7 occurred near the Kamchatka Peninsula in Russia, prompting Japan to issue a tsunami warning, which caused seawater to flow back into river channels. Although the warning was later lifted and the decision to suspend the discharge of nuclear wastewater from the Fukushima nuclear power plant was also revoked, experts warn that there may still be large-scale aftershocks.

The northern region of China has experienced severe rainstorm disasters, with heavy losses in Beijing and Hebei. A nursing home in the Miyun District of Beijing has been severely impacted, with a total of 44 casualties and 9 missing across the city. There have also been casualties in Luanping County, Chengde, Hebei. Jizhou, Tianjin, faced a once-in-70-years mountain flood, forcing tens of thousands of residents to evacuate. The government has urgently allocated supplies and simplified the process for replacing social security cards to assist the disaster-affected population.

In the face of such a complex and ever-changing situation, investors need to closely monitor market trends. It is recommended to consider increasing positions when the index reaches 30, using a ladder strategy; for example, increase positions by 2% when the index is at 25 and by 4% when it is at 20. When the index rises to 70, one should consider reducing positions, also using a ladder approach; for instance, reduce positions by 1% when the index is at 60 and by 2% when it is at 65. This strategy helps to seize opportunities in a volatile market while controlling risks.