World shares are mixed and Tokyo hits a record, tracking fresh highs on Wall Street

Market Overview - World shares exhibited mixed performance with U.S. futures declining slightly ahead of the U.S. consumer price update [1] - In early European trading, the FTSE 100 rose less than 1% while Germany's DAX and France's CAC 40 fell by 0.2% and 0.5% respectively [2] Inflation and Consumer Prices - U.S. consumer prices are expected to have risen by 2.6% in December compared to the previous year, according to economists' estimates [2] - Inflation pressures are likely to remain high due to increased costs in electricity, groceries, and clothing [3] Regional Market Performance - Asian shares mostly gained, with Japan's Nikkei 225 surging 3.1% to a record close of 53,549.16, driven by technology-related stocks [3] - Hong Kong's Hang Seng index advanced 0.9% to 26,848.47, while shares of GigaDevice Semiconductor jumped 54% in its trading debut [5] - South Korea's Kospi closed 1.5% higher at a record 4,692.64, and Australia's S&P/ASX 200 gained nearly 0.6% [5] U.S. Federal Reserve and Interest Rates - Concerns over the Federal Reserve's independence in setting interest rates were somewhat mitigated by investor expectations of potential rate cuts [6] - Tensions between President Trump and Fed Chair Jerome Powell escalated following a subpoena from the Department of Justice regarding Powell's testimony [7] - Trump has advocated for further interest rate cuts, which could benefit stock prices by lowering borrowing costs [8] Company-Specific Developments - Alphabet, Google's parent company, saw a 1% increase in market value, surpassing $4 trillion, following a deal with Apple to enhance Siri using Google's technology [8] - Credit card companies faced losses after Trump proposed a cap on credit card interest rates, impacting their profit margins [9]