04:06 PM EDT, 04/07/2025 (MT Newswires) -- US benchmark equity indexes ended mixed Monday after President Donald Trump threatened more tariffs on Chinese imports.

* Trump said his administration would impose additional 50% tariffs on China, effective Wednesday, unless Beijing reverses its recent retaliatory actions.

* "Additionally, all talks with China concerning their requested meetings with us will be terminated!" Trump said in a Monday social media post. "Negotiations with other countries, which have also requested meetings, will begin taking place immediately."

* Wells Fargo Investment Institute lowered its 2025 target level for the S&P 500 and cut earnings estimates for companies that are part of the index to reflect a projected US economic slowdown amid an aggressive tariff policy.

* May West Texas Intermediate crude oil closed down $0.91 to settle at $61.09 per barrel, while June Brent crude, the global benchmark, was last seen down $1.01 to $64.61 on the continuing market turmoil that followed Trump's decision to impose widespread tariffs on the country's trading partners.

* Dollar Tree ( DLTR ) was up 7.6%, as Citigroup upgraded the discount retailer's stock to buy from neutral and adjusted its price target to $103 from $76.

* Trump's latest reciprocal tariffs pose major challenges for Apple ( AAPL ) and Tesla (TSLA) as the duties are likely to create cost and demand headwinds for the tech giants, Wedbush Securities said. Apple ( AAPL ) shares were down 3.7%, while Tesla fell 2.6%.