Group 1 - Archer Aviation's stock increased by 26.5% over the past week, closing at a market capitalization of approximately $7.3 billion [1][5] - The rise in Archer's stock was influenced by Joby Aviation's announcement of doubling its vehicle production capacity and ramping up manufacturing operations [3][4] - The eVTOL market is still in its early stages, allowing for multiple companies to succeed, with Joby's progress seen as a positive indicator for Archer's future [4] Group 2 - Investors are optimistic about companies benefiting from the U.S. strengthening its position in defense drones, contributing to Archer's stock performance [5] - Joby's expansion in manufacturing may signal upcoming regulatory approvals, which could also benefit Archer Aviation in obtaining necessary permits for its Midnight craft [6] - News regarding eVTOLs and defense drones is expected to be a significant catalyst for Archer's stock in the near term [7]