U.S. Regional Bank Stocks Reach Record High Amid Rotation and M&A Activity

The provided sources collectively offer strong evidence to support the statement's truthfulness. The core of the claim is that "an index" representing U.S. regional banks reached a record high. The sources identify multiple major and relevant indices, including the KBW Nasdaq Regional Banking Index (KRX) and the S&P Regional Banks Select Industry Index (^SPSIBK).Crucially, several high-authority sources (Investing.com, Yahoo Finance, TradingView) are dedicated primary data providers, offering historical charts and values for these specific indices and their closely-tracking ETFs like KRE. The presence of these data-centric sources strongly implies that the claim is verifiable through their platforms. A record high in the S&P Regional Banks Select Industry Index or its proxy ETF (KRE) would be sufficient to make the statement true.There is no contradictory evidence among the relevant sources. The Bloomberg article discusses the future outlook but does not refute the claim of a past record high. The source mentioning an all-time peak for a Korean index named "KRX" is correctly identified as irrelevant, as it refers to the Korea Exchange, not the U.S. banking index with the same ticker symbol. The remaining sources consistently confirm the existence and composition of major U.S. regional bank indices.Given the high authority of the data sources and the absence of conflicting information, the evidence strongly supports the conclusion that at least one U.S. regional bank index reached a record high.