MST is trading 7.55% down at $13.01 after MSCI adopted index eligibility rules that could lead to Strategy’s removal from global indexes. - Strategy also fell in premarket trading; reports cite potential passive-fund selling as an overhang. - MSCI’s final list is expected November 11, with changes scheduled November 30; no immediate removal is confirmed. - MST is a leveraged MSTR-linked ETF, making Strategy pressure a direct explanation; broader market context is mixed.