The Dow, S&P 500 and Nasdaq remain volatile as trade deals and tariffs keep investors in limbo. Amazon’s Prime Day met with fierce competition as Walmart, Costco offer their own deals. Oil inches higher.

President Trump sent more mixed signals on his tariff policy and bashed Russian President Putin during a Cabinet meeting Tuesday.

Brazilian President Luiz Inácio Lula da Silva said Wednesday that the 50% tariffs announced by U.S. President Donald Trump would trigger the country's economic reciprocity law.

The Trump administration is expected to send dozens of letters to countries that have not made a trade deal, warning them that higher tariffs could kick in next month.

Steep tariff rates are set to go back into effect after a 90-day pause on the April 2 rates that rocked the stock market.

"America will, once again, build a DOMINANT Copper Industry," Trump said in a post on his Truth Social media platform.

U.S. stock futures edged lower and global equities were narrowly mixed with sector-specific duties back in the spotlight.

NBC News is tracking the prices of common purchases ahead of major discounting by Amazon, Walmart and other retailers, and as Trump’s global levies threaten to take hold.