Summary: Here's everything you need to know before Monday's opening bell: Warren Buffett's Berkshire Hathaway said it received a $29 billion boost from the new tax law. Weighing in at just under 6 ounces, the Samsung Galaxy S9 was unveiled at the Mobile World Congress. Weinstein Co. will file for bankruptcy protection. Delta and United announced that they are ending their respective Relationships with the NRA. U.S. stock futures looked to continue last week's global market rally. Subscribe to TheStreet on Youtube and enjoy these Editor Picks!
