For today's chart, we've chosen to take a look at VRTX because it has been confined within a bullish flag formation for the past four months. As you can see from the chart below, the two trendlines have acted as strong levels of support and resistance, and a break above the upper trendline would be used by traders as a signal of a move higher. We've also added the 200 DMA, which is fast approaching. In general, this trendline acts as strong support, and it could be the catalyst that is needed to force another move higher. Our bullish outlook on VRTX will change in the event that the bears push the price below the 200 DMA - a situation that would indicate the potential end of the longer term uptrend.