There can be diversification benefit from adding certain foreign funds. For example the iShares Frontier 100 ETF (FM) which is a proxy for developing market exposure only has a 0.41 correlation to IWN. For developed market exposure the PowerShares DWA Developed Market Momentum Portfolio (PIZ) has a 0.66 correlation to IWN and a 0.40 correlation to FM. PIZ targets similar exposure as the iShares MSCI EAFE ETF (EFA) but by employing the momentum factor it looks much different at the country and sector levels than EFA.
Broad based funds like the ones above chosen with an eye toward real diversification can serve as a simple core portfolio. A portfolio that includes foreign exposure like an IWN/FM/PIZ combo regardless of the weightings would have lagged behind SPY in 2013 because U.S. markets have done so well this year. IWN and PIZ performed in line with SPY but FM lagged behind. During years that foreign outperforms domestic, like most of the last decade, then a portfolio with foreign exposure will of course outperform a domestic only portfolio.
The above is not to imply that a broad based fund can be bought blindly. For example, low volatility funds are a valid way to gain broad market exposure but like any fund they have periods where they will lag, like this year as mentioned above. The PowerShares S&P 500 Low Volatility Portfolio (SPLV) which is up 19% this year compared to a 29% gain for SPY.
The next time SPY is up 25 or 30% SPLV will likely lag again but the fundas constituency reveals a risk not found in most other low volatility funds. SPLV simply owns the 100 stocks from the S&P 500 with the lowest volatility. Currently the utilities sector has a 23% weighting in the fund and although that is down from 31% that is still a large enough exposure to hurt the fund if interest rates rise. Historically utilities do poorly when rates rise.Finally there is no reason that a simple portfolio canat have a tactical overlay. One example could be some sort of defensive action when an uptrend appears to be rolling over into a downtrend. A breach of the 200 day moving average is a warning that an uptrend is ending although it is not an infallible indicator. There will be false positives but on the way to a huge decline a fund will cross through its 200 day moving average. According to StockCharts.com IWN's 200 day moving average is $89 about 10% below the current price of the fund. During the last bear market IWN went down 61%. A rules based defensive strategy is not indexing as Jack Bogle would advocate but there is no rule that says investors have to ride bear markets all the way down.
At the time of publication the author held no positions in any of the stocks mentioned. Follow@randomroger This article represents the opinion of a contributor and not necessarily that of TheStreet or its editorial staff.
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