Idexx Is Today’s Top S&P 500 Stock. AbbVie and Molina Also Buck Downward Tariff Trend. - Barron's

1. IDXX shares surged 12%, outperforming major indices declining on the same day. 2. Company's Q4 earnings of $2.62 beat estimates by $0.22, boosting investor confidence. 3. Full-year earnings also surpassed forecasts, with $10.67 per share versus $10.46 expected. 4. IDXX was the top stock performer in S&P 500 amid a broader market downturn. 5. Comments on healthcare from Trump contributed to positive sentiment in the healthcare sector.