MarketAxess Holdings (MKTX) reported Q1 earnings Tuesday of $0.40 per diluted share, down from $1.92 a year earlier.
Analysts surveyed by FactSet expected $1.81.
Revenue for the quarter ended March 31 was $208.6 million, down from $210.3 million a year earlier. Analysts polled by FactSet expected $210 million.
MarketAxess shares were up over 1% in recent premarket activity.