The Dow Jones Industrial Average closed at a new all-time high on Thursday, rising 594.83 points, or 1.14%, to finish the session at 52,900.07.
The benchmark index also touched an intraday peak of 52,903.85, marking a decisive continuation of the recent uptrend in large-cap US equities.
The S&P 500 also posted gains, supporting the broad-based rally across major US indices.
The advance in the Dow reflects sustained investor appetite for blue-chip stocks, with the index adding to its previous record close of 52,880.65 set just one day earlier.
Market participants have been rotating into defensive and value-oriented blue-chip names following a weaker-than-expected nonfarm payrolls report for June.
The softer labor data has reinforced expectations for a more accommodative monetary policy stance, providing tailwinds for equity valuations.