Those moves come after Trump's latest Truth Social post suggested to investors the president may not follow through on his threat to post a "massive increase of tariffs" on China.

Stocks had been heading for a slight gain in the morning, until Trump took to Truth Social. and said he’s considering “a massive increase of tariffs” on Chinese imports.

Those moves come after Trump's latest Truth Social post suggested to investors the president may not follow through on his threat to post a "massive increase of tariffs" on China.

"Highly respected President Xi just had a bad moment. He doesn’t want Depression for his country, and neither do I. The U.S.A. wants to help China, not hurt it!!!"

The S&P 500 and Dow each jumped more than 1% on the day, marking the former’s biggest one-day gain since May 27.

Tuesday saw a tumultuous day of trading for the three major stock averages after President Donald Trump renewed his trade feud with China.

At its lowest, the S&P 500 fell as much as 1.5%, but traded positive for most of the day. Then Trump said he was considering "retribution" against China.

At its lowest, the S&P 500 fell as much as 1.5%, but traded positive for most of the day. Then Trump said he was considering "retribution" against China.