President Donald Trump ended the week on a grumpy note, rattling his tariff saber — and stock-market investors — on Friday as he threatened levies on Apple Inc. and the European Union. But for all the renewed trade drama, it was moves in the bond market that have been the center of attention.

Stock futures across all three market indexes fell Friday after President Donald Trump threatened 50% tariffs on the European Union and at least 25% levies on Apple, whose stock was at the forefront of a broader market selloff, unless the company shifts iPhone production to the U.S.

Nine American companies are currently valued at $1 trillion or more, but only three of them graduated into the ultra-exclusive $3 trillion club: Microsoft ( MSFT -0.82%): $3.4 trillion. Nvidia ( NVDA -1.02%): $3.3 trillion.

Apple stock price has sold off this year, making it the top laggard in the Magnificent 7 group. What next for the AAPL shares this year?

U.S. stock futures are pointing lower to end the week; President Trump says Apple must pay a "Tariff of at least 25%" on iPhones not made in the U.S.; and Intuit stock surges on the TurboTax parent's strong results and lifted outlook.

Founded in 1993, The Motley Fool is a financial services company dedicated to making the world smarter, happier, and richer. The Motley Fool reaches millions of people every month through our premium investing solutions, free guidance and market analysis on Fool.com, top-rated podcasts, and non-profit The Motley Fool Foundation.

President Trump lashed out at Apple CEO Tim Cook as he wielded more tariff threats against the European Union pressuring U.S. stocks which are on pace for weekly losses. The 10-year Treasury yield hovered near 4.

U.S. equities fell at midday as President Donald Trump threatened tariffs on Apple iPhones and European Union products.