Trump tariff selloff: 3 things you must know about stocks right now

Heavy selling continued in markets around the world on Monday amid the record fallout from President Trump's tariff plan. U.S. futures are deep in the red after having shed an astounding $5.4 trillion in value in the two days since the president revealed big-time tariffs on major companies. The S&P 500 is now at its lowest level in 11 months. Tokyo's Nikkei 225 index tanked 7.8%. Hong Kong's stock market nosedived about 12%, the worst day in more than 16 years. China's Shanghai Composite Index lost 8.4 percent. Yahoo Finance Executive Editor and host of Opening Bid Brian Sozzi breaks down the three things you need to know today to navigate this uncertainty.