Maybe the release of this report is what has moved the stock. it is very thorough and well researched - shows the great potential of Sth Boulder from here, with a love valuation of $1.17 and a high one of $8.80. Take the middle point of $4.62 and that's a 300% increase from here.
http://www.southbouldermines.com.au/images/uploads/101020_SOUTH_BOULDER_MINES_-_ABID_Report_-_20Oct10.pdf