Key Takeaways o o « U.S. equities were heading to the end of 2023 with losses at midday, although the Dow, S&P 500, and Nasdaq are set to show big gains for the full year. Tesla shares dropped after the EV maker's new Cybertruck had its first accident. Boston Scientific said it believes U.S. regulators will approve its system to treat atrial fibrillation early next year. U.S. equities were lower at midday on this last trading day of 2023. The Dow, S&P 500, and Nasdaq were down, although all three are likely ...