Gerdau (GGB) reported Q4 earnings late Wednesday of 0.15 Brazilian reais ($0.03) per share, down from 0.27 reais a year earlier.
Comparable analyst estimates were not readily available.
Net sales for the quarter were 16.82 billion reais, up from 14.72 billion reais a year earlier.
Analysts polled by FactSet expected 16.12 billion reais.