My opinion
When there's blood on the streets, buy property.
The turmoil in the markets means that there's a bunch of people already making money, when stocks go down, you'll find those that reversed bet the stocks rubbing their hands.
A "yes" vote will create even more turmoil and uncertainty, regardless of any positive or negative outcome there will be the same bunch of people making a lot of money, a "no" vote will be more stable perhaps - and so some who don't care about devolution for the people will still be hoping for it.
There will be winners and losers here, but I bet a penny to a pound, some people will gain a lot - and it wont necessarily be the average person in the street.