VettaFi Index Rebalancing Could Shake Up These Key ETFs

In the world of exchange-traded funds, some investors tend to look at index-based ETFs as static alternatives to the more flexible active funds. However, that is not necessarily the case. Index-based funds do move their assets around, particularly when their underlying indexes rebalance at points throughout the year.

“In the world of index-based ETFs, regular reconstitutions and rebalances are the ‘maintenance work’ that ensures the fund actually does what it promises,” noted Dalton Easterwood, CFA, head of index product at VettaFi. “Without a reconstitution, the ETF could hold ‘zombie’ stocks that no longer meet the index’s criteria, causing style drift. Without a rebalance, and if left unchecked, a few massive companies could eventually make up 50% of the fund, destroying the diversification the investor paid for.“

Index Funds: More Fluid Than You Think

For instance, a slew of different VettaFi indexes are rebalancing on Friday, December 19. This rebalancing will not only affect the indexes themselves, but the popular ETFs that utilize the indexes as well.

One such fund is the ALPS Sector Dividend Dogs ETF (SDOG). SDOG uses the S-Network Sector Dividend Dogs Index as its index of choice.

This index looks to get high dividend exposure across each of the 10 market sectors. To do so, the index picks the five securities in each sector with the highest yield and weighs them equally.

The rebalancing is also affecting thematic ETFs like the ALPS O’Shares Global Internet Giants ETF (OGIG). This fund uses the O’Shares Global Internet Giants Index.