Defense-drone names split while the rare-earth and battery supply layer got hit again — MP and USA Rare Earth both down 8% as the critical-materials chokepoint stayed under China's shadow.

The vertical's largest gainer Thursday was a thin one: Mobilicom (MOB) rose 7.0% to $5.19, the Australia-based small-drone datalink-and-cybersecurity supplier, on no session-specific news — its last hard catalyst was a $2.2M Tier-1 order back in April, so read the move as micro-cap float, not a signal. The meaningful green in the basket was AeroVironment (AVAV), the vertical's bellwether, up 5.7% to $149.29 — the autonomy-and-loitering-munitions name that maps the airframe-and-datalink layer of the drone stack, and the one whose FQ4/FY2026 print (June 23) still anchors sentiment into the CCA and Gauntlet II production decisions this fall.

The laggard was American Resources (AREC), down 12.6% to $1.59 — a micro-cap whose relevance to this vertical runs through its ReElement affiliate, which is standing up rare-earth and critical-mineral refining lines in Marion, Indiana (first germanium line targeted Q3 2026). That places it squarely in the chokepoint the whole basket cares about — the magnet-and-materials layer upstream of every motor and actuator — and that chokepoint was exactly where the selling concentrated.

The real story of the session was the critical-materials complex, not the airframes. MP Materials (MP) fell 8.1% to $45.46 and USA Rare Earth (USAR) 8.1% to $15.91, both still working off China's late-June decision to add them to its export-control blacklist (compounded by heavy insider selling at MP), even though neither buys or sells directly into China. The battery-and-storage adjacencies went with them: Unusual Machines (UMAC) −10.2% to $16.64 and Amprius (AMPX) −10.9% to $10.10. It rode a broad risk-off tape — the Philadelphia Semiconductor Index dropped 4.29% as the AI-hardware trade de-risked — but the drone basket's beta lives in the rare-earth-magnet and energy-storage inputs, and that is where it bled.

The calendar ahead is dense. Teledyne (TDY) reports July 22, its first print after the LASSO award; RTX lands July 28; MP Materials' Q2 is August 6, the read on whether the DoD-backed magnet plan is offsetting the China overhang. Structurally, the two dates that matter for the materials chokepoint are November 10 — expiry of China's one-year suspension of its October 2025 rare-earth export controls — and January 2027, when the NDAA §844/§854 bans on Chinese-melted or -fabricated NdFeB and SmCo magnets take effect, forcing the domestic-supply question this week's selloff was pricing.