Check out the companies making headlines in midday trading. Goldman Sachs — Shares of the Wall Street investment bank shed more than 7% after it reported its worst earnings miss in a decade. Goldman Sachs missed analysts' estimates on both the top and bottom lines, with loan loss provisions coming in higher than expected. Morgan Stanley — The bank stock jumped 6% after the firm reported fourth-quarter earnings that exceeded Wall Street expectations. The results were boosted by the bank's record wealth management revenue and growth at its trading business. CEO James Gorman said he's more confident on the markets…