Iamgold Corp. (yesterday's close $9.90) traded within a descending parallel channel for about two years (see dashed lines). It declined from $13.08 in September, 2006 (A), to $2.93 in October, 2008 (B). Iamgold quickly reversed this price action with a sharp rise to $11.38 (C) for a 286-per-cent appreciation in just four months. This bullish price action cleared two years of resistance in about four months to confirm the strength of the stock.