Here's everything you must know before Tuesday's opening bell:

  1. Netflix (NFLX) said revenue for the three months ending in March rose 40%  to a record $3.7 billion.
  2. Tesla (TSLA) said it would temporarily suspend Model 3 production. 
  3. Billionaire banking heir Matthew Mellon died at 54.
  4. Investors will assess earnings from IBM (IBM) , Goldman Sachs (GS) , UnitedHealth (UNH) and more.  
  5. U.S. stock futures pointed to gains for Wall Street.