How did NVST's Q4 earnings surprise impact its annual performance?

**Envista's Q4 earnings surprise had a positive impact on its annual performance**, as evidenced by several key indicators:

1. **Return to Growth in Q4**: Envista anticipated a return to growth in the fourth quarter, which was a significant factor in the positive market reaction. This forecast likely contributed to the optimism surrounding its annual performance.
2. **Strong Free Cash Flow Generation**: The company reported strong free cash flow generation, with year-to-date free cash flows up 45% compared to the prior year. This financial strength is a positive sign for its annual performance, indicating the company's ability to generate cash and potentially invest in growth initiatives.
3. **Market Share Gains**: Envista gained market share in orthodontics and diagnostics, with Spark shipments and ordering doctors up double digits. This strategic growth in key segments likely contributed to improved annual performance.
4. **Revenue Outlook**: Despite a 5.3% year-over-year decline in core sales, the company maintained its full-year 2024 guidance, expecting core sales growth between -1% and -4%, and adjusted EBITDA margins between 10% and 12%. This guidance, coupled with the Q4 growth forecast, suggests a potential rebound in annual performance.

Overall, Envista's Q4 earnings surprise, characterized by an expected return to growth and strong financial metrics, bolstered its annual performance prospects.