Boss S&P 500ETF(513500) and its corresponding OTC fund are Boss S&P 500 Connection A(050025).First, the investment direction: pro-cyclical and four main lines
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Stock: American stock seven heroes+"Don't miss the rare crisis" link address: https://xueqiu.com/2584083152/244246732? scene=1036&share_uid=2584083152$ S&P 500ETF(SH513500)