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.

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.

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

Amazon's big annual sale officially kicks off Tuesday, but Prime members can find great deals now before any potential price hikes.

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

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.

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

American companies say they will likely increase their prices because of President Donald Trump's tariffs, making this holiday season more expensive. However, shopping analysts said consumers can save money and buy their holiday gifts now by taking advantage of big July sales,