S&P 21-day rolling gain reached its largest level during the two terms of Trump.

The S&P 500 index once rose by more than 2.9%, meaning that since the U.S. President Trump declared a "major buying opportunity" on April 9th, the cumulative increase has reached nearly 17.0%. After Trump announced the harshest tariffs in a century in early April, the benchmark index plummeted. However, after he stated on April 9th that it was now a "good buying opportunity," U.S. stocks rebounded by over 16% that month. On May 8th, Trump reiterated this stance, stating that the economic outlook warrants a major buy-in of stocks. According to compiled data, based on a 21-day rolling calculation, this is the largest increase the S&P 500 index has achieved during his two presidential terms. These data do not include the rebound during the COVID-19 pandemic.