$ACHR and $ONDS: Contrasting eVTOL and Defense Paths Amid -35% and -23% Declines ACHR is a pre-revenue electric air taxi (eVTOL) developer pivoting toward aerospace and defense, while ONDS is an autonomous systems and defense consolidator already generating meaningful revenue. Both stocks have declined sharply year-to-date — ACHR roughly 35% and ONDS roughly 23% — amid elevated Treasury yields that have pressured speculative growth names. ACHR's near-term narrative hinges on FAA type certification and closing its acquisition of Boeing units, whereas ONDS recently converted its acquisition strategy into a $56 million defense order.