Group 1 - The Tokyo stock market indices rebounded on the 22nd, with the Nikkei 225 index rising by 0.99% and the Tokyo Stock Exchange Price Index increasing by 0.49% [1] - The market opened higher due to the previous day's gains in the New York stock market, with the Nikkei index surging over 680 points during the early session [1] - After the Bank of Japan announced plans to sell its holdings of exchange-traded funds (ETFs), some institutional investors sold off their shares, causing the Nikkei index to drop over 800 points at one point [1] Group 2 - The Nikkei index closed up by 447.85 points at 45493.66 points, while the Tokyo Stock Exchange index rose by 15.49 points to close at 3163.17 points [1] - Among the 33 industry sectors on the Tokyo Stock Exchange, sectors such as electrical products, petroleum and coal products, and chemicals saw significant gains, while marine transportation, information and communication, and pharmaceuticals experienced declines [1]