The month of August is now behind us and September trading begins on Tuesday following Monday's Labor Day holiday. Below is a look at the performance of various asset classes in August, quarter-to-date and year-to-date using our key ETF matrix. The left hand side of the matrix features mostly US equity related ETFs, while the right side contains country, commodity and fixed income ETFs. August was a big month for US stocks, with most areas gaining 3-5%. It wasn't so great for foreign markets, however, with a lot of red on the board. Commodities got hit in August as well, leaving them down big for the quarter. Fixed income put in yet another month of gains.