Roca Mines Inc. (Tier2) (TSX:ROK)Last Price (CAD) $ 0.18 Change ▼ -0.005 (-2.70%) Bid 0.175 Ask 0.19 Volume 274,500 Day's Range 0.18 - 0.20 Click for Detailed Quote Page Last Trade:15:33:48 EST Feb-5-09