NEW YORK ( TheStreet) - Here are five ETFs to watch this week. iShares MSCI South Korea Index Fund ( EWY) The Korea ETF saw rollercoaster-like performance last week as tensions between North and South Korea came to a head. There is a strong chance that this type of wild performance will continue as long as strains remain high between these two nations. The Korea crisis once again serves as a reminder of the risks in investing in emerging markets. When venturing into EWY or any other fund focused on the developing world, it is crucial to keep a close eye on the macro picture as well as the state of the fund's underlying holdings. First Trust Dow Jones Internet Index Fund ( FDN) Black Friday is behind us but the holiday retail push is just beginning. As we start the new week, FDN will take center stage as consumers take advantage of "cyber Monday." Online retail destinations including Amazon ( AMZN) and eBay ( EBAY) will be in vogue as workers, in their free time, browse gifts for loved ones without ever having to leave their desks. This week, retail driven funds such as FDN and SPDR S&P Retail ETF ( XRT) will be watched closely as investors prepare for the holidays. Investors may want to consider taking on exposure to these funds as a longer- term play on the broad consumer recovery. iShares MSCI EMU Index Fund ( EZU) European debt crisis fears sent investors fleeing from EU-related ETFs. As we head into next week, investors with exposure to this region should closely watch on their holdings. While difficult, properly investing in Europe during these volatile times is not impossible. Rather than taking broad approach, using a fund such as EZU to capture the region as a whole, investors would be better off using single nation products to pick out pockets of strength. The iShares MSCI German Index Fund ( EWG), iShares MSCI Netherlands Investable Market Index Fund ( EWN), and Fidelity Nordic Fund ( FNORX) are three ways risk-tolerant investors can gain exposure to the fiscally stable parts of Europe. iShares Dow Jones U.S. Financial Services Index Fund ( IYG) As we head into the week, many market commentators will have their eyes locked on the ongoing, government-led, insider trading crackdown. Last week, these efforts resulted in the arrest of one man who, according to the New York Times, is accused of helping hedge funds obtain improper information about publicly traded companies.