The Global X Brazil Mid Cap ETF (BRAZ) began trading today (6/22/2010).  According to the press release (pdf), it is the first ETF to target the mid cap companies of Brazil and offers access to the country’s internal growth.   Bruno del Ama, CEO of Global X Funds says “Such companies are currently sparsely represented in existing exchange traded fund options, yet are poised to benefit the most from the country’s solid macro fundamentals.” Like many of the other ETFs from Global X, BRAZ will be based on a Solactive Index from Structured Solutions AG.  Each component of the index is weighted proportionally according to its free float market capitalization. According to the BRAZ fact sheet (pdf), the underlying index had 40 holdings as of 5/31/10.  The largest are Cia Energetica…