Archer Aviation (ACHR) reported a Q2 net loss late Monday of $0.36 per diluted share, widening from the loss of $0.32 a year earlier.
Analysts polled by FactSet expected a loss of $0.25.
Net interest income in the quarter ended June 30 rose to $10.2 million from $5.1 million a year earlier.
Two analysts surveyed by FactSet expected $8.3 million.
The company's shares fell 2% in after-hours trading, paring earlier losses.