SPDR Series Trust - State Street SPDR Portfolio S&P 400TM Mid Cap ETF
ARCASPMD short interest jumps 28% in one week to 0.47% of float, driven by 265k share increase as mid-cap ETF positions shift.
Snapshot as of 7 May 2026
No long-form analysis yet for SPMD. Pulse alerts and the live data picture are available on ORTEX.
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