Therefore I think that the best comparison period is relatively short. (dailytradealert.com)
Again, as with my last post, it's been a game of two halves — but looking v different here... In H1 - 2013, my Beta portfolios trailed the benchmark — but since the index scored a single - digit return & we're talking about an average 4 mth comparison period, that was never v relevant. (wexboy.wordpress.com)
The comparison period covers the 10 Years ended Feb. 28, 2015. (moneysense.ca)