RPV (Guggenheim S&P500指數價值型)取代VTI? - 投資

在djo大上一篇文章中看到Williamette大推薦的的ETF "RPV"

投資策略
本基金採被動式(或稱指數型)的管理方式，複製成份股來盡可能追求S&P 500/Citigroup
Pure Value index的績效表現；並預期在扣除必要費用之前的基金績效與追蹤指數間的相
關係數達95%以上。

The investment seeks to replicate as closely as possible, before fees and
expenses, the performance of the S&P 500 Pure Value Index Total Return. The
fund will invest at least 90% of its net assets, plus any borrowings for
investment purposes, in the equity securities included in the underlying
index. The underlying index is narrow in focus, containing only those S&P 500
companies with strong value characteristics as selected by S&P. It may hold
up to 10% of its assets in securities not included in the underlying index.
The fund is non-diversified.

跟VTI比較近5年Market Return績效 (RPG看起來比較好?)

2010 2011 2012 2013 2014
RPV +22.50% -1.16% +24.94% +47.47% +5.46%
VTI +17.42% +0.97% +16.45% +33.45% +2.12%

比較最佳/最差3個月的績效 (崩的時候跌幅差不多，漲得時候多一倍?)
May - July 2009
RPV 68.67% VTI 26.66%
Worst 3 Month Period
November - January 2009
RPV (37.52%) VTI (31.14%)

我目前投資組合是 VTI+VEA+VWO

請教一下
如果以長期的指數型、被動投資來說
用這支"完全"取代VTI，適合嗎?
或是推薦和VTI各占一定比例?

謝謝

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