SSgA SPDR ETFs Europe I Public Limited Company - SPDR S&P 400 US Mid Cap UCITS ETF is an exchange traded fund launched and managed by State Street Global Advisors Limited. It invests in public equity markets of the United States. The fund seeks to invest in the stocks of companies operating across diversified sectors. It invests in the stocks of mid-cap companies. The fund seeks to replicate the performance of the S&P MidCap 400 Index, by investing in the stocks of companies as per their weightings in the index. It was formerly known as SSgA SPDR ETFs Europe I Public Limited Company - SPDR S&P 400 US Mid Cap ETF. SSgA SPDR ETFs Europe I Public Limited Company - SPDR S&P 400 US Mid Cap UCITS ETF was formed on January 30, 2012 and is domiciled in Ireland.