Mining Junky seems to follow the market in more detail that I do and may be looking at charts and esoteric determiners to indicate market direction. $5 is a bit like the pricing decision that manufacturers and retailers set to maximize sales, $4.95 is a break point and next one $6.95 and then maybe $9.95. Physcological effects of pricing and all that.

Now once price is maintained above $5 there are some institutional buyers (traders) who will be allowed to take a flutter on some NOT shares. A flutter for you or me might be $2,000 but for them it's likely anything under one million dollars. Pretty obvious that buyers like that entering into the market will put upward pressure on the asking AND bidding price.