一 | "指数增强"是近几年基金市场上非常热门的概念——在跟踪指数的基础上，通过量化手段争取跑赢指数。 Lawmakers passed the bill on Tuesday evening in a vote of 267-157, with 47 Republicans joining Democrats in support of the measure.,US Congressmen Ted Lieu (D-CA) said the legislation protects marriage equality under federal law and provides additional protections at the state level.,The bill repeals the Defense of Marriage Act, a law passed under former President Bill Clinton defining marriage for federal purposes as being between one man and one woman. The bill also requires interstate recognition of any marriages considered valid in the states where they were officialized.,Ted Cruz Weighs in Opposing SCOTUS Ruling Allowing Same-Sex Marriage17 July, 16:42 GMT,The legislation came in response to a US Supreme Court opinion written by Justice Clarence Thomas that suggested previous court precedents such as those protecting same-sex marriage could be reconsidered by the bench.,While many hailed the Tuesday vote, some have voiced their distaste for the move. Rep. Jim Jordan (R-OH) lashed out, saying the passage was just part of the "Democrats' campaign to attempt to intimidate" the US' highest court.,The measure now heads to the US Senate; however, its clearance in the congressional chamber remains uncertain as it has only received one Republican backer. The bill needs to attain the support of at least 10 Republican lawmakers in order to avoid the filibuster.,House Democrats intend to vote later this week to codify the right to contraception, which was established in 1965 when the US Supreme Court ruled 7 to 2 in the Griswold v. Connecticut case.。很多散户想知道：这种策略能不能自己做？先说结论：指数增强策略的原理不难理解，但要做出真正有效的指数增强策略，对数据、模型和资金的要求较高，普通散户可以尝试简化版本，但不建议直接复制机构级的复杂模型。指数增强策略的基本原理指数增强策略的目标是：在持有指数成分股的基础上，通过量化选股模型调整个股权重，争取获得超越指数的超额...。
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