Quote from virtualmoney:
Indeed. Trending market esp. slow up trends seems to be less favorable than fast moving down market for pairs to converge more frequently...which brings to the point: How do you use beta(systematic relative risk) VS STD (volatility) of individual instrument when pairs trading?
The short answer is I don't.
At least I don't filter pairs for beta/volatility at the trade stage. I do it at the back test phase.
On a trade by trade basis I am focused largely on correlation of the pair. Individual instrument beta/volatility I ignore. I am not saying it doesn't have value, but I when trading I don't have time(opened/closed 77 pairs this week) other than to filter for non-statistical drivers before putting on trade.