U.S. equities advanced on Tuesday, lifting the S&P 500 to a new record. The benchmark index rose about 0.5% at the open and extended the rally to roughly 0.9% later in the session, surpassing its previous all-time high. Technology-heavy Nasdaq Composite outperformed, up around 1.0% in afternoon trading. The broad gains point to sustained investor confidence after a run that has already pushed major U.S. benchmarks sharply higher this year.