Banco Santander Chile's stock plummeted 5.06% during intraday trading on Friday, following the release of the company's fourth-quarter 2025 financial results.

The bank reported quarterly earnings of $0.90 per share, which significantly beat the analyst consensus estimate of $0.59. Quarterly sales of $760.603 million also surpassed expectations. However, total operating income for the quarter declined to 714.23 billion Chilean pesos from 726.84 billion pesos a year earlier, indicating a potential weakness in core business performance despite the headline earnings beat.

This mixed earnings report, featuring strong bottom-line results but a year-over-year drop in operating income, appears to have triggered a negative market reaction, leading to the sharp intraday sell-off.