Check out the companies making headlines in midday trading Tuesday:

Palantir — The software company's stock price soared 21.1% on Tuesday. The action comes a day after Palantir reported it made a profit in the fourth quarter, its first quarter of positive GAAP income, at $31 million. Palantir's revenue also came in stronger than expected, reporting a year-over-year increase of 18% for the quarter, while its U.S. commercial revenue grew 12%.