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

Illumina's (ILMN) fourth-quarter (Q4) earnings surprise had a significant impact on its annual performance, although the direct effect on the annual net income is not available, we can infer the following:

1. **Q4 Earnings Surprise Context**:
- Illumina's Q4 revenue guidance fell short of expectations, leading to a 5.8% drop in shares despite beating Q3 earnings estimates.
- The company reported an adjusted EPS of $1.14 for Q4, which was a key metric for analysis.
2. **Impact on Annual Performance**:
- Since the Q4 earnings are a part of the annual financial performance, the lower-than-expected revenue guidance likely affected the full-year financials.
- The absence of specific annual net income data makes it challenging to quantify the exact impact, but the Q4 performance sets the tone for the annual financial results.
3. **Inference from Quarterly Performance**:
- Illumina's Q3 earnings exceeded expectations with a revenue of $1.08 billion, a 3.5% decline from the previous year, but still, it was slightly better than the consensus estimate.
- The earnings per share (EPS) of $1.14 for Q3 represented a significant year-over-year increase and a substantial earnings surprise.
4. **Market Reaction and Future Prospects**:
- The market's reaction to the Q4 revenue guidance disappointment overshadowed the positive Q3 performance, indicating investor concern about the company's growth trajectory.
- Moving forward, investors will look at the Q3 performance as a strong point, while the Q4 results may continue to influence sentiment until the next annual earnings report.

In conclusion, while specific annual net income data is lacking, the Q4 earnings surprise, particularly the revenue shortfall, would have had a bearing on Illumina's annual financial performance, with the Q3 earnings providing a positive counterbalance.