Here are five things you must know for Monday, Sept. 17:

1. -- Stocks Slide as Trump Ready to Slap $200 Billion in Tariffs on Chinese Goods

U.S. stock futures fell on Monday, Sept. 17, amid reports Donald Trump was ready to impose tariffs on $200 billion worth of China-made goods as early as Monday while officials in Beijing have vowed to retaliate to protect their nation's interests.

The Wall Street Journal's report of a Trump administration plan to slap tariffs of 10% on $200 billion worth of products kicked off a weaker Asia session, with caution increasing as China's reply -- in the form of an editorial in the state-run Global Times newspaper -- said the country was "looking forward to a more beautiful counter-attack and will keep increasing the pain felt by the U.S."

U.S. tech stocks could be the among the most vulnerable to downside risk if Trump goes ahead with his threat to impose tariffs and Beijing strikes back with targeted disruptions to U.S. supply chains with "export restraints."

Contracts tied to the Dow Jones Industrial Average I:DJI  fell 13 points, futures for the S&P 500 I:GSPC  were down 2.65 points, and Nasdaq I:IXIC futures slipped 12 points.

The economic calendar in the U.S. on Monday includes the Empire State Manufacturing Survey for September at 8:30 a.m. ET.

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2. -- Oracle and FedEx Report Earnings

Earnings reports are expected after Monday's closing bell from software giant Oracle Corp. (ORCL) - Get Report and shipping company FedEx Corp. (FDX) - Get Report .

3. -- Elon Musk Says Tesla Is in 'Delivery Logistics Hell'

Tesla Inc. (TSLA) - Get Report  CEO Elon Musk acknowledged Sunday that his electric vehicle company had entered "delivery logistics hell."

"Sorry, we've gone from production hell to delivery logistics hell, but this problem is far more tractable. We're making rapid progress. Should be solved shortly," Musk said in a tweet when responding to a customer complaint about a delivery delay. 

Musk last week warned customers they may see "longer response times" from Tesla amid what he said was a surge in North American volumes. Musk also said Tesla was reducing the choice of colors from some of its models in an effort to "simplify" production. 

Tesla shares were down 0.5% in premarket trading on Monday.

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4. -- Time Magazine Is Sold to Salesforce CEO Benioff

Meredith Corp. (MDP) - Get Report reached a deal to sell Time Magazine to Marc Benioff, a co-founder of Inc. (CRM) - Get Report , and his wife.

Benioff, chairman and co-CEO of cloud giant Salesforce, will buy Time magazine for $190 million in cash.

Meredith had completed the purchase of Time along with other publications of Time Inc. earlier this year.

The Benioffs are purchasing Time personally, and the transaction is unrelated to Salesforce.

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5. -- Amazon Launches a Small Business Shop Inc. (AMZN) - Get Report on Monday launched a new section of its site called Amazon Storefronts, which only lists products sold by small- and medium-sized U.S. businesses.

Amazon said more than 1 million products from about 20,000 businesses were selected to be featured on the site, based on ratings from customers. Similar stores will be launched on Amazon's sites in Germany and the United Kingdom.

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