The troubles continued for Boeing (BA) this morning after United Airlines (UAL) announced it had discovered loose bolts of several on several 737 Max 9 aircraft. The loose bolts, which were located on the door plugs of the planes, come just days after an Alaska Airlines (ALK) flight was forced to perform an emergency landing when a piece of the aircraft blew off the side of the aircraft. Elsewhere on Wall Street, Netflix (NFLX) is under pressure after Citi downgraded shares of the streaming giant on several risks, including lower revenues. Yahoo Finance trending tickers include NVIDIA (NVDA), Unity Software (U), and Crocs (CROX).

Key guests include:
9 a.m. ET - Steve Trent, Citi Managing Director and Equity Analyst
9:30 a.m. ET - Brent Thill, Jefferies Senior Analyst
9:40 a.m. ET - Michael Antonelli, Baird Managing Director, Market Strategist
9:45 a.m. ET - Gary Cohn, IBM Vice Chair
10:30 a.m. ET - Ayhan Kose, World Bank Deputy Chief Economist
11 a.m. ET - Liz Ann Sonders, Charles Schwab Chief Investment Strategist