The three major indices hit new record highs again, with the weakness of the Dow Jones Transportation Index triggering concerns about a "bull market trap".

According to the Sina Finance app, the US stock market once again showed strong performance on Friday, with the Dow Jones Industrial Average, S&P 500 Index, and Nasdaq Composite Index all hitting historic highs, and market sentiment remaining high. Even the previously lagging small and mid-cap index Russell 2000 hit a near four-year high on Thursday for the first time in history. However, the Russell 2000 saw a slight pullback on Friday.