Stone Summit Wealth LLC’s holdings in SPDR S&P MidCap 400 ETF Trust were worth $942,000 as of its most recent SEC filing. Get SPDR S&P MidCap 400 ETF Trust alerts:Other hedge funds and other institutional investors also recently modified their holdings of the company. About SPDR S&P MidCap 400 ETF TrustSPDR S&P MidCap 400 ETF is an exchange traded fund. SPDR MidCap 400 Trust focuses to correspond to the price and yield performance of the S&P MidCap 400 Index. Receive News & Ratings for SPDR S&P MidCap 400 ETF Trust Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for SPDR S&P MidCap 400 ETF Trust and related companies with MarketBeat.com's FREE daily email newsletter.