受美股拉动，日经平均股指再创新高

Group 1 - The Nikkei average stock index rebounded to 45493.66 points on September 22, up 447.85 points (0.99%) from the previous weekend, surpassing the previous high of 45303.43 points on September 18 [2][3] - The rise in the Tokyo stock market is attributed to the positive performance of major US stock indices, with expectations that the US Federal Reserve will continue to lower interest rates, supporting a stable US economy [2][3] - Semiconductor-related stocks such as Tokyo Electron and Lasertec saw significant buying, driven by speculation of strong pre-order performance for Apple's new iPhone, leading to a notable increase in Japanese electronic component stocks like TDK [3] Group 2 - The Bank of Japan's decision to sell its holdings of exchange-traded funds (ETFs) was unexpected, but the market perceives it as a move to minimize its impact on the overall Japanese stock market [3] - Despite domestic institutional investors selling stocks due to high-risk concerns and seasonal factors, long-term overseas investors are buying undervalued stocks across various sectors [3]