The Goldman Sachs ActiveBeta Emerging Markets Equity ETF (NYSEarca: GEM), which launched on September 25, 2015, has already attracted $572.8 million in assets under management. According to Goldman Sachs, GEM experienced a major growth spurt this month due to large institutional investor interest. The sudden interest in the Goldman Sachs ActiveBeta Emerging Markets Equity ETF may have to do with the end of the year. While we can only speculate, the timing of the increased inflows suggests that some institutional investors may be implementing a tax-loss harvesting strategy with an emerging market ETF to maximize their portfolios. On the other hand, some may just be enticed by GEM’s smart-beta indexing methodology, which targets companies with good value, strong momentum, high quality and low volatility. [A Fast Growing Smart-Beta Emerging Market ETF]

The SPDR Russell 1000 Low Volatility Focus ETF (NYSEArca: ONEV) has also quickly gathered $335.9 million in assets after launching on December 2, 2015. ONEV was developed with Alaska Permanent Fund Corporation (APFC), which infused the ETF with about $333 million, along with two other new smart-beta Russell 1000 ETFs. The Russell 1000 Low Volatility Focus ETF targets large-cap companies that exhibit small swings or low volatility. The top sector picks include financials 20.1%, consumer discretionary 16.4% and producer durables 15.7%.

For more information on ETFs, visit our ETF performance reports category.

Max Chen contributed to this article.