Ryan Christensen, account executive at Adviser Investments, has the market analysis for Tuesday, December 18. Major U.S. stockA financial instrument giving the holder a proportion of the ownership and earnings of a company. indexes closed the day with slight gains: The Dow Jones Industrial Average and NASDAQ advanced 0.4% and the S&P 500 rose fractionally. Meanwhile, investors remain focused on the Federal Reserve’s highly anticipated statement and related projections as well as Fed Chair Jerome Powell’s remarks tomorrow afternoon. Despite recent market volatilityA measure of how large the changes in an asset’s price are. The more volatile an asset, the more likely that its price will experience sharp rises and steep drops over time. The more volatile an asset is, the riskier it is to invest in., the Fed is still expected to raise interest rates an additional 0.25% on Wednesday; however, an additional rate hike in early 2019 is less probable.