Additionally, the iShares Core MSCI Emerging Markets ETF (NYSEArca: IEMG) is going head-to-head with the iShares MSCI Emerging Markets Index Fund (NYSEArca: EEM).

The newer IEMG has a lower expense ratio of 0.18%, compared to EEM’s 0.66%, and the core emerging market ETF is comprised of a broader 1799 holdings, whereas EEM has 832 components.

Emerging markets have not held up as well against developed market stocks, with EEM losing $2.4 billion in assets so far this year. However, IEMG picked up $1.0 billion in new inflows year-to-date.

For more information on ETFs, visit our ETF 101 category.

Max Chen contributed to this article.