Keep in mind that this is for people that already invest in stocks, still only 5% actually invested in btc and probably 90% of them still for small amounts.
Just a sign that we are still (very) early adopters imo.
Similar result among the professionals, lots of adoption still to come:
I still dont even know what it is Jim Chanos, famed short-seller and founder of $6 billion Kynikos Associates.
You know, I dont understand bitcoin Bonnie Baha, head of Global Developed Credit at $53 billion DoubleLine Capital.
I dont really know enough to have a view Chris Delong, chief investment officer of $8.1 billion multi-strategy hedge fund Taconic Capital Advisors
I dont have any insight at all. I dont know how it should be valued. I have no anchor as to what its worth- Steven Einhorn, Vice-Chairman of Omega Advisors
I like sound currencies. I have no interest in that. I would stay away - Margie Patel, senior portfolio manager at Wells Capital Management.
http://blogs.reuters.com/unstructuredfinance/2013/11/22/what-the-money-managers-and-the-fog-of-bitcoin/