本报告为摩根大通全球量化与衍生品策略团队发布的全球指数事件邮件，梳理2026年10月27日至28日收盘生效的主要指数调整。EMEA方面，MSCI希腊小盘股中Credibank收购Evropi Holdings，指数将删除EH并调整CB的股数与流通因子；MSCI德国小盘股中蒂森克虏伯分拆TK Accelis Group，指数将纳入后者，并对蒂森克虏伯应用价格调整因子及调整GICS分类。美洲方面，FTSE巴西将删除完成强制赎回的AXIA Energia；罗素2000将反映Indivior以换股方式收购Supernus并派发特别股息。亚太方面，MSCI与FTSE澳大利亚指数将反映Evolution Mining收购Carnaby Resources。报告还提示MSCI 2026年市场分类评审结果：保加利亚将于2027年5月转为前沿市场，印尼和土耳其被列入评估，希腊确认升级为发达市场；
This Global Index Mail from J.P. Morgan's Global Quantitative and Derivatives Strategy team reviews index events effective at the close on 27-28 October 2026. In EMEA, MSCI Greece Small Cap will delete Evropi Holdings and adjust Credibank's shares and FIF following the acquisition, while MSCI Germany Small Cap will add TK Accelis Group after Thyssenkrupp's spin-off and apply a price adjustment factor and GICS change to Thyssenkrupp. In the Americas, FTSE Brazil will remove AXIA Energia after its mandatory redemption, and Russell 2000 will reflect Indivior's stock-for-stock acquisition of Supernus alongside a special dividend. In Asia Pacific, MSCI and FTSE Australia indices will reflect Evolution Mining's acquisition of Carnaby Resources. The report also summarizes MSCI's 2026 country classification review—Bulgaria to Frontier in May 2027, Indonesia and Turkey under assessment, and Greece confirmed for Developed Market status—and highlights the 2026 ETF Handbook and Global Index Handbo