Key Insights for Today's Stock Market Opening

U.S. stock futures are down, indicating a weak end to the week after a post-election rally. Domino's Pizza and Pool Corp. shares rise as Berkshire Hathaway takes stakes in them, while Applied Materials shares fall due to disappointing earnings. Samsung shares jump on a $7.2 billion buyback plan, and Palantir Technologies shares increase as it moves its listing to Nasdaq.