In midday trading on July 21, 2026, several stocks made notable moves. Advanced Micro Devices (AMD) shares rose after Microsoft announced it would offer AMD's Helios-based system on its Azure cloud platform. Wolfe Research analyst Chris Caso commented that Microsoft's decision to return to AMD for cloud infrastructure could signal a shift in the data center market.
Archer Aviation (ACHR) shares also saw significant activity, though specific details on the move were not immediately available from verified sources. The electric vertical takeoff and landing (eVTOL) aircraft company has been in the news recently for its urban air mobility plans.
SPCX, a SPAC (special purpose acquisition company), and IREN, a renewable energy and data center company, were among other stocks moving in midday trading. IREN has been expanding its Bitcoin mining and AI data center operations.
Investors should note that midday trading moves can be volatile and may not reflect long-term trends. All information is based on verified reports as of July 21, 2026.