There are actually two Bitcoin ETNs on the Swedish stock exchange NASDAQ OMX, XBT and XBTE: http://www.nasdaqomxnordic.com/etp/etn/etn-historical?Instrument=SSE113749

Can't remember how long they've been available, but it's at least a couple of years I think. So quite a few people have already had access to this for a while.