The stock market has experienced its worst start to a presidential term since the 1970s during President Donald Trump's first 100 days in office. According to an analysis by Sam Stovall, chief investment strategist for CFRA Research, the performance of the S&P 500 and Dow Jones Industrial Average during this period is comparable only to the market downturn at the beginning of President Richard Nixon's second term in 1973, when the S&P 500 dropped 9.9%. The turbulence is largely attributed to the chaotic rollout of tariffs under the Trump administration, which has unsettled global financial markets. This downturn contrasts with the initial stock market surge following Trump's election, a rise for which he previously took credit. Some commentators have noted that Trump has blamed President Joe Biden for the market's poor performance during his first 100 days.