Nikkei hits record high; investors await Fed chair’s testimony By Reuters Investing.comWorld shares mixed as investors await Powell testimony ReutersJapan’s stock markets keep testing new highs. Is the rally sustainable? CNBCAsia markets rise tracking global market sentiment; Nikkei index hits new all-time highs Seeking AlphaJapan’s Nikkei 225 stock index logs record high close, gaining 2% to 41,580.17 as Wall St rallies ABC News